# SER VICE BULLETIN

ENGINE
— DISK ASSEMBL Y , DRUM ROTOR, HIGH PRESSURE COMPRESSOR (HPC) AND BLADE LOCKS, 14TH, AND 15TH ST AGE
— INTRODUCTION OF, TO IMPROVE DURABILITY MODEL APPLICA TION PW4052, PW4052(-3), PW4056, PW4056(-3), PW4060, PW4060(-3), PW4062(-3), PW4062A(-3), PW4152, PW4152(-3), PW4156A, PW4156A(-3), PW4158, PW4158(-3), PW4460, PW4460(-3), PW4462, PW4462(-3) BULLETIN ISSUE SEQUENCE PW4000 Series 72-817 A T A NUMBER 72-35-00

UTC/P&W PROPRIET AR Y INFORMA TION This document is the property of United T echnologies Corporation
— Pratt & Whitney (UTC/P&W). Y ou may not possess, use, copy or disclose this document or any information in it, for any purpose, including without limitation to design, manufacture, or repair parts, or obtain F AA or other government approval to do so, without UTC/P&W’s express written permission. Neither receipt nor possession of this document alone, from any source, constitutes such permission. Possession, use, copying or disclosure by anyone without UTC/P&W’s express written permission is not authorized and may result in criminal and/or civil liability
. Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3). Compliance Category 8 P&W Distribution Code 2616, 2618, 2619 December 7/11 

# PW4ENG 72-817 Page 1 of 230 Published in United States of AmericaSummary The purpose ofthis Service Bulletin is to introduce a new High Pressure Compressor (HPC) rear drum rotor assembly and new 14th and 15th stage HPC blade locks. Cracks are found in the loading and locking slots ofthe HPC rear drum rotor assembly
. The root cause ofthese cracks is Thermal Mechanical Fatigue (TMF). The new drum rotor assembly and the new seals introduced by Reference 28, Service Bulletin PW4ENG-72-816 will prevent the causes ofTMF
. Planning Inf ormation Ef fectivity Data Engine Models Applicable PW4052 Engine Serial Nos. P723701 thru P723706 PW4056 Engine Serial Nos. P724201 thru P724208 PW4056 Engine Serial Nos. P717501 thru P717700 PW4056 Engine Serial Nos. P724301 thru P724500 PW4056 Engine Serial Nos. P724502 thru P724504 PW4056 Engine Serial No. P724506 PW4056(-3) Engine Serial Nos. P719991 thru P719996 PW4056 Engine Serial No. P724507 PW4060 Engine Serial Nos. P724101 thru P724200 PW4060 Engine Serial No. P724501 PW4060 Engine Serial No. P724505 PW4060 Engine Serial No. P724508 PW4060 Engine Serial No. P724509 PW4060, PW4060(-3), PW4062(-3) Engine Serial Nos. P724601 thru P724751 PW4052(-3), PW4056, PW4056(-3), PW4060, PW4060(-3), PW4062(-3) Engine Serial Nos. P727301 thru P728000 PW4052(-3), PW4056, PW4056(-3), PW4060, PW4060(-3), PW4062(-3), PW4062A(-3) Engine Serial Nos. P729001 thru P729264* December 7/11 

# PW4ENG 72-817 Page 2 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).PW4152 Engine Serial Nos. P717701 thru P717800 PW4152, PW4152(-3) Engine Serial Nos. P724901 thru P724944* PW4156A, PW4156A(-3) Engine Serial Nos. P724551 thru P724578* PW4158 Engine Serial Nos. P717201 thru P717205 PW4158 Engine Serial Nos. P724001 thru P724100 PW4158, PW4158(-3) Engine Serial Nos. P724801 thru P724900 PW4158, PW4158(-3) Engine Serial Nos. P728501 thru P728600 PW4158, PW4158(-3) Engine Serial Nos. P729800 thru P729867* PW4460 Engine Serial Nos. P723801 thru P723969 PW4462, PW4462(-3) Engine Serial Nos. P733701 thru P733721 PW4460(-3), PW4462(-3) Engine Serial Nos. P733726 thru P733856*
* This estimate of engine serial numbers will be revised, if necessary, when parts are installed in engines at Pratt & Whitney
. NOTE: The engine serial number ef fectivity data and its related engine model identification contained in this Service Bulletin are taken from the records of part(s) incorporation during initial manufacture. After initial engine manufacture, but before final delivery, P&W may change part(s) in the engine or change the model identification of the engine. Such action is recorded on F AA337 forms. T o find Service Bulletin PW4ENG 72-817 models that are applicable, the owner/operator of the engine must compare the Service Bulletin List supplied with the engine as sent from P&W and the List of Changes incorporated at the Airframerfrom F AA337 forms to the Service Bulletin PW4ENG 72-817 Ef fectivity section. This Service Bulletin also applies to engines converted to Phase III (-3) configuration by Service Bulletin No. PW4ENG 72-490, No. PW4ENG 72-504, or No. PW4ENG 72-572. This Service Bulletin (SB) also applies to engines identified with a suf fix as follows: (-3A) configuration introduced by SB No. PW4ENG 72-588. (-3A) configuration introduced by SB No. PW4ENG 73-150. (-3B) configuration introduced by SB No. PW4ENG 72-512. (-1C) configuration introduced by SB No. PW4ENG 72-499 or No. PW4ENG 72-520. December 7/11 

# PW4ENG 72-817 Page 3 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).(-1E) configuration introduced by SB No. PW4ENG 72-521. (-1C/-1E) configuration introduced by SB No. PW4ENG 72-516. Concurrent Requirements This Service Bulletin must be done at the same time or after Reference 28, Service Bulletin No. PW4ENG-72-816. Reason 1. Problem: More than 200 HPC rear drum rotor assemblies from PW4000-94 and PW4000-100 engine models were reported to have cracks in the blade loading and locking slots. 2. Cause: The root cause is determined to be TMF
. The TMF cracks are the result of thermal gradients and related high stresses in the rear ofthe HPC section. The high stresses are attributed to both the part geometry and shot peening. The loading and locking slot part geometry has structural features that when subjected to high thermal gradients, high stress zones are created. Shot peening adds a residual compressive stress which protects against low cycle fatigue conditions, however shot peening can be a detriment and initiate TMF
. 3. Solution: Provide a new HPC rear drum rotor assembly
. The new rear drum rotor assembly has a dif ferent loading and locking slot geometry and incorporates the new shot peen specification introduced in Reference 28, Service Bulletin PW4ENG-72-816. The new drum rotor assembly is less susceptible to subsequent TMF
. Also, Reference 28, Service Bulletin PW4ENG-72-816 introduced new seals to reduce thermal gradients in the rear of the HPC section. New blade locks are necessary to fit the dif ferent loading and locking slot design. Description Replace the HPC rear drum rotor assembly, 13th, 14th and 15th stage blades and blade locks. Compliance Category 8 Do when the operator thinks that the change is necessary because of experience with the parts being replaced. Approval Data The part number changes and/or part changes specified in the Material Information section and Accomplishment Instructions ofthis Service Bulletin agree with the applicable Federal A viation Regulations and are F AA-Approved for the engine model(s) given. Manpower No more man-hours are necessary when done at complete disassembly/assembly
. Weight Data For PW4052, PW4056, PW4060, PW4152, PW4156A, PW4158, PW4460, PW4462 Engine Models

- 2.999 Pound(s) (- 1.36 kg).

December 7/11 

# PW4ENG 72-817 Page 4 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).For PW4052, PW4056, PW4060, PW4152, PW4156A, PW4158, PW4460, And PW4462 Engine Models That Incorporate Reference 9, Service Bulletin No. PW4ENG 72-490, Reference 11, Service Bulletin No. PW4ENG 72-504, Or Reference 16, Service Bulletin No. PW4ENG 72-572 Option 1:- 2.999 Pound(s) (- 1.36 kg). Option 2:+ 11.3 Pound(s) (+ 5.14 kg). For PW4052(-3), PW4056(-3), PW4060(-3), PW4062(-3), PW4062A(-3), PW4152(-3), PW4156A(-3), PW4158(-3), PW4460(-3), PW4462(-3) Engines Models No Change. Electrical Load Data Not Applicable. Sof tware Accomplishment Summary Not Applicable. References 1. Turbojet Engine Standard Practices Manual, Part No. 585005. 2. PW4052, PW4052(-3), PW4056, PW4056(-3), PW4060, PW4060(-3), PW4060C, PW4062(-3), PW4062A(-3) Turbofan Engines, Illustrated Parts Catalog, Part No. 50A607. 3. PW4152, PW4152(-3), PW4156A, PW4156A(-3), PW4158, PW4158(-3) Turbofan Engines, Illustrated Parts Catalog, Part No. 50A445. 4. PW4460, PW4460(-3), PW4462, PW4462(-3) Turbofan Engines, Illustrated Parts Catalog, Part No. 50A824. 5. PW4052, PW4052(-3), PW4056, PW4056(-3), PW4060, PW4060(-3), PW4060C, PW4060C(-3), PW4062, PW4062A(-3) Turbofan Engines, Engine Manual, Part No. 50A605. 6. PW4152, PW4152(-3), PW4156A, PW4156A(-3), PW4158, PW4158(-3) Turbofan Engines, Engine Manual, Part No. 50A443. 7. PW4460, PW4460(-3), PW4462, PW4462(-3) Turbofan Engines, Engine Manual, Part No. 50A822. 8. PW4000 Series 94 Inch And 100 Inch Turbofan Engines, Engine Cleaning, Inspection And Repair (CIR) Manual, Part No. 51A357. 9. Service Bulletin No. PW4ENG 72-490; Engine
— Conversion OfA PW4460 Or PW4462 T o A PW4460(-3) Or PW4462(-3). Issue Sequence 72-490, PW4000 Series. 10. Service Bulletin No. PW4ENG 72-499; Engine
— Blade Set, First Stage LPC
— Allow Installation OfThe FB2C First Stage LPC Blade Sets In Non-Phase 3 Engines T o Create The (-1C) Engine Configuration. Issue Sequence 72-499, PW4000 Series. 11. Service Bulletin No. PW4ENG 72-504; Engine
— Conversion OfA PW4052, PW4056, PW4060, T o A PW4052(-3), PW4056(-3), Or PW4060(-3). Issue Sequence 72-504, PW4000 Series. 12. Service Bulletin No. PW4ENG 72-512; Engine
— Blade Set, First Stage LPC
— Allow Installation OfThe FB2B First Stage LPC Blade Sets In Phase 3 Engines T o Create The (-3B) Engine Configuration. Issue Sequence 72-512, PW4000 Series.

December 7/11 

# PW4ENG 72-817 Page 5 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).13. Service Bulletin No. PW4ENG 72-516; Engine
— Blade Set, First Stage LPC
— Allow Installation OfThe FB2C First Stage LPC Blade Sets In Pre-Phase 3 Engines T o Create The (-1C/-1E) Engine Configuration. Issue Sequence 72-516, PW4000 Series. 14. Service Bulletin No. PW4ENG 72-520; Engine
— Blade Set, First Stage LPC
—Allow The FB2C First Stage LPC Blade Sets In Non-Phase 3 Engines T o Create The (-1C) Engine Configuration (Installation Of Phase 3 Blades In Pre-Phase 3 Engine/Nacelle). Issue Sequence 72-520, PW4000 Series. 15. Service Bulletin No. PW4ENG 72-521; Engine
— Blade Set, First Stage LPC
—Allow The FB2C First Stage LPC Blade Sets In Non-Phase 3 Engines T o Create The (-1E) Engine Configuration (Installation Of Phase 3 Blades In Pre-Phase 3 Engine/ Phase 3 Nacelle). Issue Sequence 72-521, PW4000 Series. 16. Service Bulletin No. PW4ENG 72-572; Engine
— Conversion OfA PW4152, PW4156A, PW4158 Engine T o A PW4152(-3), PW4156A(-3), Or PW4158(-3) Engine. Issue Sequence 72-572, PW4000 Series. 17. Service Bulletin No. PW4ENG 72-588; Engine
— Reidentification Of Engine Model Phase (-3) T o (-3A) For Installation In A Pre-Phase (-3) Nacelle. Issue Sequence 72-588, PW4000 Series. 18. Service Bulletin No. PW4ENG 73-150; Engine Fuel And Control
— Plug, EEC Programming
— Installation OfT o Create The (-3A) Engine Configuration. Issue Sequence 73-150, PW4000 Series. 19. Service Bulletin No. PW4ENG 72-446; Engine
— Disk Assemblies, HPC Drum Rotor

— Replacement Of, For Improved Clearances With V ane Platforms. Issue Sequence 72-446, PW4000 Series. 20. Service Bulletin No. PW4ENG 72-575; Engine
— Blade, 13th, 14th And 15th Stage HPC

— Replacement Of With Blades That Have Zirconium Oxide Tips T o Improve Blade Durability
. Issue Sequence 72-575, PW4000 Series. 21. Service Bulletin No. PW4ENG 72-599; Engine
— Blade, 13th, 14th And 15th Stage HPC

— A vailability Of Replacement Blades That Have Thin Zirconium Oxide And Do Not Require Grinding. Issue Sequence 72-599, PW4000 Series. 22. Service Bulletin No. PW4ENG 72-682; Engine
— Lock And Setscrew, HPC Blade
— Replacement T o Ease Removal At Overhaul. Issue Sequence 72-682, PW4000 Series. 23. Service Bulletin No. PW4ENG 72-750; Engine
— Disk, High Pressure Compressor (HPC) Drum Rotor Disk Assembly
— Replacement OfWith A More Durable Rear Hub Scalloped Balance Flange Design. Issue Sequence 72-750, PW4000 Series. 24. Service Bulletin No. PW4ENG 72-755; Engine
— Rotor & Stator Module, High Pressure Compressor (HPC)
— Modification Of T o Incorporate A Ring Case Configuration (RCC) Rear HPC; Boeing Configuration. Issue Sequence 72-755, PW4000 Series. 25. Service Bulletin No. PW4ENG 72-756; Engine
— Rotor & Stator Module, High Pressure Compressor (HPC)
— Modification Of T o Incorporate A Ring Case Configuration (RCC) Rear HPC; Airbus Symmetric Front HPC Configurations. Issue Sequence 72-756, PW4000 Series. 26. Service Bulletin No. PW4ENG 72-757; Engine
— Rotor & Stator Module, High Pressure Compressor (HPC)
— Modification Of T o Incorporate A Ring Case Configuration (RCC) Rear HPC; Mcdonnell Douglas Configuration. Issue Sequence 72-757, PW4000 Series. 27. Service Bulletin No. PW4ENG 72-759; Engine
— Rotor & Stator Module, High Pressure Compressor (HPC)
— Modification Of T o Incorporate A Ring Case Configuration (RCC) December 7/11 

# PW4ENG 72-817 Page 6 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).Rear HPC; Airbus Asymmetric Front HPC Configurations. Issue Sequence 72-759, PW4000 Series. 28. Service Bulletin No. PW4ENG 72-816; Engine
— Seal, 13th, 14th, And 15th Stage, High Pressure Compressor (HPC)
— Replacement Of, And Introduction OfA New Shot Peen Specification, T o Improve Rear Drum Rotor Durability
. Issue Sequence 72-816, PW4000 Series. NOTE: References 19 thru 27 are shown to help find configurations in relation to this bulletin. NOTE: References 9 thru 18 are shown to help find non-production configurations that may incorporate this bulletin. Publications Changed PW4052, PW4052(-3), PW4056, PW4056(-3), PW4060, PW4060(-3), PW4060C, PW4062(-3), PW4062A(-3) Turbofan Engines, Illustrated Parts Catalog, Part No. 50A607. 72-35-00, Figures 1, 7, 8, 9, and 10 PW4152, PW4152(-3), PW4156A, PW4156A(-3), PW4158, PW4158(-3) Turbofan Engines, Illustrated Parts Catalog, Part No. 50A445. 72-35-00, Figures 1, 7, 8, 9, and 10 PW4460, PW4460(-3), PW4462, PW4462(-3) Turbofan Engines, Illustrated Parts Catalog, Part No. 50A824. 72-35-00, Figures 1, 7, 8, 9, and 10 PW4052, PW4052(-3), PW4056, PW4056(-3), PW4060, PW4060(-3), PW4060C, PW4060C(-3), PW4062(-3) Turbofan Engines, Engine Manual, Part No. 50A605. 05-10-01 72-35-01 PW4152, PW4152(-3), PW4156A, PW4156A(-3), PW4158, PW4158(-3) Turbofan Engines, Engine Manual, Part No. 50A443. 05-10-01 72-35-01 PW4460, PW4460(-3), PW4462, PW4462(-3) Turbofan Engines, Engine Manual, Part No. 50A822. 05-10-01 72-35-01 PW4000 Series 94 Inch And 100 Inch Turbofan Engines, Engine Cleaning, Inspection And Repair (CIR) Manual, Part No. 51A357. 72-35-00 72-35-10 Interchangeability Old and new parts are interchangeable only in full sets.

December 7/11 

# PW4ENG 72-817 Page 7 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).Inf ormation in the Appendix Alternate Accomplishment Instructions (No) Progression Charts (Y es) Added Data (Y es) Revision to T able of Limits (Y es) Inspection Procedures (No)

December 7/11 

# PW4ENG 72-817 Page 8 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).Material Inf ormation Material
— Cost and A vailability 1. Part prices were not available at the time of Service Bulletin publication. Contact Pratt & Whitney Spares Management & Logistics for firm quotations. 2. There is no kit provided to do this Service Bulletin. 3. Part availability information is provided in material data Instructions
— Disposition. Industry Support Program Not Applicable. The material data that f ollows is f or each engine. NOTE: It is possible to use the Chapter/Section and Figure/Item reference number shown below the old part number to find the part in the Illustrated Parts Catalog. Because there are many dif ferent configurations used, it is frequently necessary to show more than one group of parts. When this occurs, parts that are interchangeable are shown line-by-line only, unless this is shown dif ferently
. CAUTION: THE FOLLOWING MA TERIAL DA T A T ABLE(S) ARE ORGANIZED BY ILLUSTRA TED P ARTS CA T ALOG. ALL P ARTS IN THE T ABLE(S) MA Y OR MA Y NOT BE APPLICABLE TO ALL THE ENGINE MODELS SHOWN IN THE T ABLE HEADING. YOU MUST REFER TO THE APPROPRIA TE ILLUSTRA TED P ARTS CA T ALOG FOR ENGINE MODEL APPLICABILITY USING THE OLD P ART NUMBER (PN) AND CA T ALOG SEQUENCE NUMBER. F AILURE TO INST ALL THE P ART(S) IN THE CORRECT ENGINE MODEL MA Y RESUL T IN A CONFIGURA TION THA T IS NOT F AA APPROVED. The material data that f ollows is f or each engine. For PW4052, PW4056, PW4060, PW4060C Engines: New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition Configuration-1: Drum RotorAssembly Replacement In Compressor RotorAssembly, PN 58H597 50S325 1 COMPRESSOR ROTOR ASSY

— AXIAL 58H597 (72-35-00-1-90 Q) (1)(NP)
50S425-01 1 * .DISK
— ASSY OF, DRUM ROTOR 53H923-01 (72-35-00-1-210 A) (2)(A)(N)
56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C) 50S154 8 * .LOCK ASSY
— HPC, 14STG (A)

December 7/11 

# PW4ENG 72-817 Page 9 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C) 50S153 8 * .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N) OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N) 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AE) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-10AC) (A2)(M)(N) 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N) 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AD) (A2)(M)(N)
December 7/11 

# PW4ENG 72-817 Page 10 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition OR 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N) 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-04 60 * .BLADE
— HPC, 14STG (B)
December 7/11 

# PW4ENG 72-817 Page 11 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N) 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AC) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AC) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AF) (A2)(M)(N) 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F) OR

December 7/11 

# PW4ENG 72-817 Page 12 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AG) (A2)(M)(N) 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AD) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AD) (A2)(M)(N) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C) 50S415-02 4 * .BLADE
— HPC, 15STG (B)

December 7/11 

# PW4ENG 72-817 Page 13 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (1)(B) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR December 7/11 

# PW4ENG 72-817 Page 14 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AF) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AG) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AH) (A2)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 15 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N) 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) OR 50S425-01 1 * .DISK
— ASSY OF, DRUM ROTOR 50H936 (72-35-00-1-210) (2)(A)(N)
56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C) 50S154 8 * .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C) 50S153 8 * .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N) OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N)

December 7/11 

# PW4ENG 72-817 Page 16 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AE) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-10AC) (A2)(M)(N) 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N) 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AD) (A2)(M)(N) OR 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N) 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C)
December 7/11 

# PW4ENG 72-817 Page 17 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-04 60 * .BLADE
— HPC, 14STG (B) 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N) 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N)

December 7/11 

# PW4ENG 72-817 Page 18 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AC) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AC) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AF) (A2)(M)(N) 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F) OR 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AG) (A2)(M)(N) 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AD) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AD) (A2)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 19 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) OR

December 7/11 

# PW4ENG 72-817 Page 20 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N) 56H415-03 4 * .BLADE
— HPC, 15STG (A2)

December 7/11 

# PW4ENG 72-817 Page 21 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AF) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AG) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AH) (A2)(M)(N) OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N) 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) December 7/11 

# PW4ENG 72-817 Page 22 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).The material data that f ollows is f or each engine. For PW4052, PW4056, PW4060 Engines Converted T o Phase (-3) Engines By Reference 11, Ser vice Bulletin No. PW4ENG 72-504: New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition Configuration-1: Drum Rotor Assembly Replacement In Compressor Rotor Assembly, PN 57H678-004 57H678-005 1 COMPRESSOR ROTOR ASSY

— AXIAL 57H678-004 (72-35-00-1-90AH) (1)(NP) Replacement Of Drum RotorAssembly With A Phase (-1) Drum And Modification OfThe Drum Rotor Assembly T o Convert T o A Phase (-3) Drum 50S425-001 1 * .DISK
— ASSY OF, DRUM ROTOR 53H923-001 (72-35-00-1-210AB) (1)(M)(N)
56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C) 50S154 8 * .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C) 50S153 8 * .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N) OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N) 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) December 7/11 

# PW4ENG 72-817 Page 23 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AE) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-10AC) (A2)(M)(N) 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N) 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AD) (A2)(M)(N) OR 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N) 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR December 7/11 

# PW4ENG 72-817 Page 24 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-04 60 * .BLADE
— HPC, 14STG (B) 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N) 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N)

December 7/11 

# PW4ENG 72-817 Page 25 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AC) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AC) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AF) (A2)(M)(N) 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F) OR 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AG) (A2)(M)(N) 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AD) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AD) (A2)(M)(N) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR

December 7/11 

# PW4ENG 72-817 Page 26 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR

December 7/11 

# PW4ENG 72-817 Page 27 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AF) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F)

December 7/11 

# PW4ENG 72-817 Page 28 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AG) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AH) (A2)(M)(N) OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N) 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) OR 50S425-001 1 * .DISK
— ASSY OF, DRUM ROTOR 50H936-002 (72-35-00-1-210AA) (1)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 29 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C) 50S154 8 * .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C) 50S153 8 * .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N) OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N) 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AE) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-10AC) (A2)(M)(N)
December 7/11 

# PW4ENG 72-817 Page 30 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N) 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AD) (A2)(M)(N) OR 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N) 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N)

December 7/11 

# PW4ENG 72-817 Page 31 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-04 60 * .BLADE
— HPC, 14STG (B) 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N) 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AC) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AC) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AF) (A2)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 32 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F) OR 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AG) (A2)(M)(N) 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AD) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AD) (A2)(M)(N) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades December 7/11 

# PW4ENG 72-817 Page 33 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N)

December 7/11 

# PW4ENG 72-817 Page 34 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AF) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AG) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2)
December 7/11 

# PW4ENG 72-817 Page 35 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AH) (A2)(M)(N) OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N) 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) OR Replacement Of Drum Rotor Assembly With A Phase(-3) Drum 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 53H923-001 (72-35-00-1-210AB) (2)(A)(N)
56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C) 50S154 8 .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C) 50S153 8 .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N)

December 7/11 

# PW4ENG 72-817 Page 36 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N) 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AE) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-10AC) (A2)(M)(N) 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N) 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AD) (A2)(M)(N) OR 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N)
December 7/11 

# PW4ENG 72-817 Page 37 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-04 60 * .BLADE
— HPC, 14STG (B) 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 38 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AC) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AC) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AF) (A2)(M)(N) 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F) OR 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AG) (A2)(M)(N)
December 7/11 

# PW4ENG 72-817 Page 39 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AD) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AD) (A2)(M)(N) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2)

December 7/11 

# PW4ENG 72-817 Page 40 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 41 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AF) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AG) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AH) (A2)(M)(N) OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N)

December 7/11 

# PW4ENG 72-817 Page 42 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) 54H767 1 * SHAFT
— HPC DRIVE, TURB (A) 54H792 1 * .AIR SEAL 54H846 (72-35-00-1-250 C) (2)(D)(C) 54H618 50 * .BOL T 50H376 (72-35-00-1-260) (2)(D)(C) 55H601 50 * .CLIP (2)(D) 50N112 50 * .W ASHER (2)(D) 786376 50 * .NUT OPTION 51H516 (72-35-00-1-270 A) (2)(A)(C)(O1) (O2) 53H367 1 * .HEA T SHIELD 50H100 (72-35-00-1-190) (2)(D)(C) AS3215-180 1 * .RET AINING RING AS3215-179 (72-35-00-1-200) (2)(D)(C) 53H472 5 * .COUNTERWEIGHT (D) 534494 5 * .RIVET (D) 1 .COUNTERWEIGHT 51H476 (72-35-00-9-50) (72-35-00-10-30) (C)
51A358 1 * NUT 50A722 (72-00-52-2-1 A) (2)(D)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 50H936-002 (72-35-00-1-210AA) (2)(A)(N)
56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C)
December 7/11 

# PW4ENG 72-817 Page 43 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S154 8 * .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C) 50S153 8 * .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N) OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N) 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AE) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-10AC) (A2)(M)(N) 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N)
December 7/11 

# PW4ENG 72-817 Page 44 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AD) (A2)(M)(N) OR 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N) 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N)
December 7/11 

# PW4ENG 72-817 Page 45 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S114-04 60 * .BLADE
— HPC, 14STG (B) 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N) 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AC) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AC) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AF) (A2)(M)(N) 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F)

December 7/11 

# PW4ENG 72-817 Page 46 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition OR 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AG) (A2)(M)(N) 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AD) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AD) (A2)(M)(N) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C)

December 7/11 

# PW4ENG 72-817 Page 47 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N)

December 7/11 

# PW4ENG 72-817 Page 48 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AF) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AG) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 49 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AH) (A2)(M)(N) OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N) 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) 54H767 2 * SHAFT
— HPC DRIVE, TURB (A) 54H792 1 * .AIR SEAL 54H846 (72-35-00-1-250 C) (2)(D)(C) 54H618 50 * .BOL T 50H376 (72-35-00-1-260) (2)(D)(C) 55H601 50 * .CLIP (D) 50N112 50 * .W ASHER (D) 786376 50 * .NUT OPTION 51H516 (72-35-00-1-270 A) (2)(A)(C)(O1) (O2) 53H367 1 * .HEA T SHIELD 50H100 (72-35-00-1-190) (2)(D)(C) AS3215-180 1 * .RET AINING RING AS3215-179 (72-35-00-1-200) (2)(D)(C) 53H472 1 * .COUNTERWEIGHT (D) 534494 1 * .RIVET (D)

December 7/11 

# PW4ENG 72-817 Page 50 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 1 .COUNTERWEIGHT 51H476 (72-35-00-9-50) (72-35-00-10-30) (C)
51A358 1 * NUT 50A722 (72-35-00-2-1 A) (2)(D)(C) The material data that f ollows is f or each engine. For PW4052 (-3), PW4056 (-3), PW4060 (-3), PW4062 (-3), PW4062A (-3) Engines: New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition Configuration-1: Drum RotorAssembly Replacement In Compressor RotorAssembly, PN 58H575 50S225 1 COMPRESSOR ROTOR ASSY

— AXIAL 58H575 (72-35-00-1-90 P) (1)(NP)
50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 56H013-001 (72-35-00-1-210AE) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 58H236-01 (72-35-00-1-210 E) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 54H803-002 (72-35-00-1-210AF) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C)

December 7/11 

# PW4ENG 72-817 Page 51 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition Configuration-2: Drum Rotor Assembly Replacement In Compressor Rotor Assembly, PN 56H378-002 56H378-003 1 COMPRESSOR ROTOR ASSY

— AXIAL 56H378-002 (72-35-00-1-90AF) (1)(NP)
50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 56H013-001 (72-35-00-1-210AE) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 58H236-01 (72-35-00-1-210 E) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 54H803-002 (72-35-00-1-210AF) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) Configuration-3: Drum Rotor Assembly Replacement In Compressor Rotor Assembly, PN 57H478-002 57H478-003 1 COMPRESSOR ROTOR ASSY

— AXIAL 57H478-002 (72-35-00-1-90AG) (1)(NP)
50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 56H013-001 (72-35-00-1-210AE) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C)

December 7/11 

# PW4ENG 72-817 Page 52 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 58H236-01 (72-35-00-1-210 E) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 54H803-002 (72-35-00-1-210AF) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) The material data that f ollows is f or each engine. For PW4152, PW4156A, PW4158 Engines: New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition Configuration-1: Drum RotorAssembly Replacement In Compressor RotorAssembly, PN 58H597 50S325 1 COMPRESSOR ROTOR ASSY

— AXIAL 58H597 (72-35-00-1-90 Q) (1)(NP)
50S425-01 1 * .DISK
— ASSY OF, DRUM ROTOR 53H923-01 (72-35-00-1-210 A) (2)(A)(N)
56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C) 50S154 8 * .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C)
December 7/11 

# PW4ENG 72-817 Page 53 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S153 8 * .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N) OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N) 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AF) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-20AC) (A2)(M)(N) 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N) 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AE) (A2)(M)(N) OR
December 7/11 

# PW4ENG 72-817 Page 54 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N) 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-04 60 * .BLADE
— HPC, 14STG (B)

December 7/11 

# PW4ENG 72-817 Page 55 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N) 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AC) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AC) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AF) (A2)(M)(N) 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F) OR

December 7/11 

# PW4ENG 72-817 Page 56 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AG) (A2)(M)(N) 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AD) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AD) (A2)(M)(N) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C) 50S415-02 4 * .BLADE
— HPC, 15STG (B)

December 7/11 

# PW4ENG 72-817 Page 57 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR December 7/11 

# PW4ENG 72-817 Page 58 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AF) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AG) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AH) (A2)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 59 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N) 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) OR 50S425-01 1 * .DISK
— ASSY OF, DRUM ROTOR 50H936 (72-35-00-1-210) (2)(A)(N)
56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C) 50S154 8 * .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C) 50S153 8 * .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N) OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N)

December 7/11 

# PW4ENG 72-817 Page 60 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AF) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-20AC) (A2)(M)(N) 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N) 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AE) (A2)(M)(N) OR 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N) 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C)
December 7/11 

# PW4ENG 72-817 Page 61 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-04 60 * .BLADE
— HPC, 14STG (B) 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N) 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N)

December 7/11 

# PW4ENG 72-817 Page 62 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AC) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AC) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AF) (A2)(M)(N) 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F) OR 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AG) (A2)(M)(N) 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AD) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AD) (A2)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 63 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) OR

December 7/11 

# PW4ENG 72-817 Page 64 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N) 56H415-03 4 * .BLADE
— HPC, 15STG (A2)

December 7/11 

# PW4ENG 72-817 Page 65 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AF) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AG) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AH) (A2)(M)(N) OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N) 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) December 7/11 

# PW4ENG 72-817 Page 66 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).The material data that f ollows is f or each engine. For PW4152, PW4156A, PW4158 Engines Converted T o Phase (-3) Models By Reference 16, Ser vice Bulletin No. PW4ENG 72-572: New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition Configuration-1: Drum Rotor Assembly Replacement In Compressor Rotor Assembly, PN 57H678-004 57H678-005 1 COMPRESSOR ROTOR ASSY

— AXIAL 57H678-004 (72-35-00-1-90AH) (1)(NP) Replacement Of Drum Rotor Assembly With A Phase(-1) Drum And Modification Of The Drum Rotor Assembly T o Convert T o A Phase(-3) Drum 50S425-001 1 * .DISK
— ASSY OF, DRUM ROTOR 53H923-001 (72-35-00-1-210AB) (1)(M)(N)
56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C) 50S154 8 * .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C) 50S153 8 * .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N) OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N) 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) December 7/11 

# PW4ENG 72-817 Page 67 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AF) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-20AC) (A2)(M)(N) 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N) 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AE) (A2)(M)(N) OR 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N) 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR December 7/11 

# PW4ENG 72-817 Page 68 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-04 60 * .BLADE
— HPC, 14STG (B) 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N) 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N)

December 7/11 

# PW4ENG 72-817 Page 69 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AC) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AC) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AF) (A2)(M)(N) 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F) OR 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AG) (A2)(M)(N) 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AD) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AD) (A2)(M)(N) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR

December 7/11 

# PW4ENG 72-817 Page 70 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR

December 7/11 

# PW4ENG 72-817 Page 71 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AF) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F)

December 7/11 

# PW4ENG 72-817 Page 72 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AG) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AH) (A2)(M)(N) OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N) 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) OR 50S425-001 1 * .DISK
— ASSY OF, DRUM ROTOR 50H936-002 (72-35-00-1-210AA) (1)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 73 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C) 50S154 8 * .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C) 50S153 8 * .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N) OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N) 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AF) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-20AC) (A2)(M)(N)
December 7/11 

# PW4ENG 72-817 Page 74 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N) 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AE) (A2)(M)(N) OR 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N) 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N)

December 7/11 

# PW4ENG 72-817 Page 75 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-04 60 * .BLADE
— HPC, 14STG (B) 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N) 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AC) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AC) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AF) (A2)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 76 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F) OR 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AG) (A2)(M)(N) 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AD) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AD) (A2)(M)(N) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades December 7/11 

# PW4ENG 72-817 Page 77 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N)

December 7/11 

# PW4ENG 72-817 Page 78 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AF) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AG) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2)
December 7/11 

# PW4ENG 72-817 Page 79 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AH) (A2)(M)(N) OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N) 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) OR Replacement Of Drum Rotor Assembly With A Phase(-3) Drum 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 53H923-001 (72-35-00-1-210AB) (2)(A)(N)
56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C) 50S154 8 .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C) 50S153 8 .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N)

December 7/11 

# PW4ENG 72-817 Page 80 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N) 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AF) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-20AC) (A2)(M)(N) 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N) 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AE) (A2)(M)(N) OR 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N)
December 7/11 

# PW4ENG 72-817 Page 81 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-04 60 * .BLADE
— HPC, 14STG (B) 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 82 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AC) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AC) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AF) (A2)(M)(N) 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F) OR 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AG) (A2)(M)(N)
December 7/11 

# PW4ENG 72-817 Page 83 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AD) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AD) (A2)(M)(N) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2)

December 7/11 

# PW4ENG 72-817 Page 84 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 85 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AF) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AG) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AH) (A2)(M)(N) OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N)

December 7/11 

# PW4ENG 72-817 Page 86 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) 54H767 1 * SHAFT
— HPC DRIVE, TURB (A) 54H792 1 * .AIR SEAL 54H846 (72-35-00-1-250 C) (2)(D)(C) 54H618 50 * .BOL T 50H376 (72-35-00-1-260) (2)(D)(C) 55H601 50 * .CLIP (2)(D) 50N112 50 * .W ASHER (2)(D) 786376 50 * .NUT OPTION 51H516 (72-35-00-1-270 A) (2)(A)(C)(O1) (O2) 53H367 1 * .HEA T SHIELD 50H100 (72-35-00-1-190) (2)(D)(C) AS3215-180 1 * .RET AINING RING AS3215-179 (72-35-00-1-200) (2)(D)(C) 53H472 5 * .COUNTERWEIGHT (D) 534494 5 * .RIVET (D) 1 .COUNTERWEIGHT 51H476 (72-35-00-9-50) (72-35-00-10-30) (C)
51A358 1 * NUT 50A722 (72-00-52-2-1 A) (2)(D)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 50H936-002 (72-35-00-1-210AA) (2)(A)(N)
56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C)
December 7/11 

# PW4ENG 72-817 Page 87 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S154 8 * .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C) 50S153 8 * .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N) OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N) 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AF) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-20AC) (A2)(M)(N) 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N)
December 7/11 

# PW4ENG 72-817 Page 88 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AE) (A2)(M)(N) OR 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N) 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N)
December 7/11 

# PW4ENG 72-817 Page 89 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S114-04 60 * .BLADE
— HPC, 14STG (B) 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N) 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AE) (N) 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AC) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AC) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AF) (A2)(M)(N) 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F)

December 7/11 

# PW4ENG 72-817 Page 90 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition OR 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AG) (A2)(M)(N) 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AD) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AD) (A2)(M)(N) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C)

December 7/11 

# PW4ENG 72-817 Page 91 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N)

December 7/11 

# PW4ENG 72-817 Page 92 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AF) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AG) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 93 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AH) (A2)(M)(N) OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N) 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) 54H767 2 * SHAFT
— HPC DRIVE, TURB (2)(A) 54H792 1 * .AIR SEAL 54H846 (72-35-00-1-250 C) (2)(D)(C) 54H618 50 * .BOL T 50H376 (72-35-00-1-260) (2)(D)(C) 55H601 50 * .CLIP (D) 50N112 50 * .W ASHER (D) 786376 50 * .NUT OPTION 51H516 (72-35-00-1-270 A) (2)(A)(C)(O1) (O2) 53H367 1 * .HEA T SHIELD 50H100 (72-35-00-1-190) (2)(D)(C) AS3215-180 1 * .RET AINING RING AS3215-179 (72-35-00-1-200) (2)(D)(C) 53H472 1 * .COUNTERWEIGHT (D) 534494 1 * .RIVET (D)

December 7/11 

# PW4ENG 72-817 Page 94 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 1 .COUNTERWEIGHT 51H476 (72-35-00-9-50) (72-35-00-10-30) (C)
51A358 1 * NUT 50A722 (72-35-00-2-1 A) (2)(D)(C) The material data that f ollows is f or each engine. For PW4152(-3), PW4156A(-3), PW4158(-3) Engines: New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition Configuration-1: Drum RotorAssembly Replacement In Compressor RotorAssembly, PN 58H575 50S225 1 COMPRESSOR ROTOR ASSY

— AXIAL 58H575 (72-35-00-1-90 P) (1)(NP)
50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 56H013-001 (72-35-00-1-210AD) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 58H236-01 (72-35-00-1-210 E) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 54H803-002 (72-35-00-1-210AE) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C)

December 7/11 

# PW4ENG 72-817 Page 95 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition Configuration-2: Drum Rotor Assembly Replacement In Compressor Rotor Assembly, PN 56H378-002 56H378-003 1 COMPRESSOR ROTOR ASSY

— AXIAL 56H378-002 (72-35-00-1-90AF) (1)(NP)
50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 56H013-001 (72-35-00-1-210AD) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 58H236-01 (72-35-00-1-210 E) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 54H803-002 (72-35-00-1-210AE) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) Configuration-3: Drum Rotor Assembly Replacement In Compressor Rotor Assembly, PN 57H478-002 57H478-003 1 COMPRESSOR ROTOR ASSY

— AXIAL 57H478-002 (72-35-00-1-90AG) (1)(NP)
50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 56H013-001 (72-35-00-1-210AD) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C)

December 7/11 

# PW4ENG 72-817 Page 96 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 58H236-01 (72-35-00-1-210 E) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 54H803-002 (72-35-00-1-210AE) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) The material data that f ollows is f or each engine. For PW4460, PW4462 Engines: New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition Configuration-1: Drum RotorAssembly Replacement In Compressor RotorAssembly, PN 58H597 50S325 1 COMPRESSOR ROTOR ASSY

— AXIAL 58H597 (72-35-00-1-90 Q) (1)(NP)
50S425-01 1 * .DISK
— ASSY OF, DRUM ROTOR 53H923-01 (72-35-00-1-210 A) (2)(A)(N)
56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C) 50S154 8 * .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C)
December 7/11 

# PW4ENG 72-817 Page 97 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S153 8 * .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N) OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N) 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AC) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-20AC) (A2)(M)(N) 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N) 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AE) (A2)(M)(N) OR
December 7/11 

# PW4ENG 72-817 Page 98 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N) 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-04 60 * .BLADE
— HPC, 14STG (B)

December 7/11 

# PW4ENG 72-817 Page 99 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N) 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AG) (N) 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AG) (N) 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AD) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AD) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AH) (A2)(M)(N) 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F) OR

December 7/11 

# PW4ENG 72-817 Page 100 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AJ) (A2)(M)(N) 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AE) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AE) (A2)(M)(N) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C) 50S415-02 4 * .BLADE
— HPC, 15STG (B)

December 7/11 

# PW4ENG 72-817 Page 101 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR December 7/11 

# PW4ENG 72-817 Page 102 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AG) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AH) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 8 .BLADE
— HPC, 15STG 56H515-02 (C2) 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N) 56H515-03 3 * .BLADE
— HPC, 15STG (A2)

December 7/11 

# PW4ENG 72-817 Page 103 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AJ) (A2)(M)(N) OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N) 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) OR 50S425-01 1 * .DISK
— ASSY OF, DRUM ROTOR 50H936 (72-35-00-1-210) (2)(A)(N)
56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C) 50S154 8 * .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C) 50S153 8 * .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N) OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N)

December 7/11 

# PW4ENG 72-817 Page 104 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N) 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AC) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-20AC) (A2)(M)(N) 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N) 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AE) (A2)(M)(N) OR 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N) 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C)
December 7/11 

# PW4ENG 72-817 Page 105 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 8 .BLADE
— HPC, 14STG 50S114-04 (C) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-04 60 * .BLADE
— HPC, 14STG (B) 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N) 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR

December 7/11 

# PW4ENG 72-817 Page 106 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AG) (N) 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AG) (N) 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AD) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AD) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AH) (A2)(M)(N) 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F) OR 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AJ) (A2)(M)(N) 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AE) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2)

December 7/11 

# PW4ENG 72-817 Page 107 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AE) (A2)(M)(N) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2)

December 7/11 

# PW4ENG 72-817 Page 108 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 109 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H415-03 4 * .BLADE
— HPC, 15STG (A2) 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AG) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AH) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 8 .BLADE
— HPC, 15STG 56H515-02 (C2) 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AJ) (A2)(M)(N) OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N) 51S015-02 3 * .BLADE
— HPC, 15STG (F)

December 7/11 

# PW4ENG 72-817 Page 110 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) The material data that f ollows is f or each engine. For PW4460, PW4462 Engines Converted T o Phase (-3) Engines By Reference 9, Ser vice Bulletin No. PW4ENG 72-490: New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition Configuration-1: Drum Rotor Assembly Replacement In Compressor Rotor Assembly, PN 57H678-004 57H678-005 1 COMPRESSOR ROTOR ASSY

— AXIAL 57H678-004 (72-35-00-1-90AH) (1)(NP) Replacement Of Drum Rotor Assembly With A Phase(-1) Drum And Modification Of The Drum Rotor Assembly T o Convert T o A Phase(-3) Drum 50S425-001 1 * .DISK
— ASSY OF, DRUM ROTOR 53H923-001 (72-35-00-1-210AB) (1)(M)(N)
56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C) 50S154 8 * .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C) 50S153 8 * .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N) OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N)
December 7/11 

# PW4ENG 72-817 Page 111 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N) 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AC) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-20AC) (A2)(M)(N) 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N) 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AE) (A2)(M)(N) OR 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N) 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades December 7/11 

# PW4ENG 72-817 Page 112 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-04 60 * .BLADE
— HPC, 14STG (B) 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N) 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N)

December 7/11 

# PW4ENG 72-817 Page 113 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AG) (N) 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AG) (N) 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AD) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AD) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AH) (A2)(M)(N) 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F) OR 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AJ) (A2)(M)(N) 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AE) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2)
December 7/11 

# PW4ENG 72-817 Page 114 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AE) (A2)(M)(N) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2)

December 7/11 

# PW4ENG 72-817 Page 115 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 116 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H415-03 4 * .BLADE
— HPC, 15STG (A2) 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AG) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AH) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 8 .BLADE
— HPC, 15STG 56H515-02 (C2) 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AJ) (A2)(M)(N) OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N) 51S015-02 3 * .BLADE
— HPC, 15STG (F)

December 7/11 

# PW4ENG 72-817 Page 117 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) OR 50S425-001 1 * .DISK
— ASSY OF, DRUM ROTOR 50H936-002 (72-35-00-1-210AA) (1)(M)(N)
56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C) 50S154 8 * .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C) 50S153 8 * .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N) OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N) 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) OR

December 7/11 

# PW4ENG 72-817 Page 118 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AC) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-20AC) (A2)(M)(N) 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N) 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AE) (A2)(M)(N) OR 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N) 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR

December 7/11 

# PW4ENG 72-817 Page 119 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-04 60 * .BLADE
— HPC, 14STG (B) 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N) 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AG) (N) 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AG) (N)

December 7/11 

# PW4ENG 72-817 Page 120 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AD) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AD) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AH) (A2)(M)(N) 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F) OR 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AJ) (A2)(M)(N) 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AE) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AE) (A2)(M)(N) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR

December 7/11 

# PW4ENG 72-817 Page 121 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR

December 7/11 

# PW4ENG 72-817 Page 122 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AG) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F)

December 7/11 

# PW4ENG 72-817 Page 123 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AH) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 8 .BLADE
— HPC, 15STG 56H515-02 (C2) 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AJ) (A2)(M)(N) OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N) 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) OR Replacement Of Drum Rotor Assembly With A Phase(-3) Drum December 7/11 

# PW4ENG 72-817 Page 124 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 53H923-001 (72-35-00-1-210AB) (2)(A)(N)
56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C) 50S154 8 .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C) 50S153 8 .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N) OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N) 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AC) (A2)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 125 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-20AC) (A2)(M)(N) 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N) 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AE) (A2)(M)(N) OR 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N) 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR December 7/11 

# PW4ENG 72-817 Page 126 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-04 60 * .BLADE
— HPC, 14STG (B) 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N) 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AG) (N) 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AG) (N) 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AD) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AD) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2)

December 7/11 

# PW4ENG 72-817 Page 127 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AH) (A2)(M)(N) 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F) OR 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AJ) (A2)(M)(N) 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AE) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AE) (A2)(M)(N) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N) OR 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F)

December 7/11 

# PW4ENG 72-817 Page 128 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 129 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AG) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AH) (A2)(M)(N)
December 7/11 

# PW4ENG 72-817 Page 130 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 8 .BLADE
— HPC, 15STG 56H515-02 (C2) 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AJ) (A2)(M)(N) OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N) 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) 54H767 1 * SHAFT
— HPC DRIVE, TURB (A) 54H792 1 * .AIR SEAL 54H846 (72-35-00-1-250 C) (2)(D)(C) 54H618 50 * .BOL T 50H376 (72-35-00-1-260) (2)(D)(C) 55H601 50 * .CLIP (D) 50N112 50 * .W ASHER (D) 786376 50 * .NUT OPTION 51H516 (72-35-00-1-270 A) (2)(A)(C)(O1) (O2) 53H367 1 * .HEA T SHIELD 50H100 (72-35-00-1-190) (2)(D)(C)

December 7/11 

# PW4ENG 72-817 Page 131 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition AS3215-180 1 * .RET AINING RING AS3215-179 (72-35-00-1-200) (2)(D)(C) 53H472 5 * .COUNTERWEIGHT (D) 534494 5 * .RIVET (D) 1 .COUNTERWEIGHT 51H476 (72-35-00-9-50) (72-35-00-10-30) (C)
51A358 1 * NUT 50A722 (72-00-52-2-1 A) (2)(D)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 50H936-002 (72-35-00-1-210AA) (2)(A)(N)
56H326 4 * .LOCK ASSY
— HPC, 13STG 56H318 (72-35-00-7-60 D) (2)(A)(C) 4 .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 C) (C) 50S154 8 * .LOCK ASSY
— HPC, 14STG (A) 4 .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 C) (C) 50S153 8 * .LOCK ASSY
— HPC, 15STG (A) 13th Stage Blades 50S113-01 70 * .BLADE
— HPC, 13STG 54H613-401 (1)(B)(N) OR 50S113-04 70 * .BLADE
— HPC, 13STG 54H613-401 (2)(B)(N) 50S113-02 4 * .BLADE
— HPC, 13STG 54H613-402 (1)(B)(N) 50S113-03 4 * .BLADE
— HPC, 13STG 54H613-403 (1)(B)(N) 50S113-05 AR * .BLADE
— HPC, 13STG 54H613-405 (1)(F)(N) OR
December 7/11 

# PW4ENG 72-817 Page 132 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 56H313-01 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) OR 56H313-04 70 * .BLADE
— HPC, 13STG 54H613-101 (72-35-00-7-10AB) (A2)(M)(N) 56H313-02 4 * .BLADE
— HPC, 13STG 54H613-102 (72-35-00-7-40AB) (A2)(M)(N) 56H313-03 4 * .BLADE
— HPC, 13STG 54H613-103 (72-35-00-7-30AB) (A2)(M)(N) 56H313-05 AR * .BLADE
— HPC, 13STG 54H613-105 (72-35-00-7-10AC) (A2)(M)(N) 13th Stage Pre-ground Blades 56H413-01 7 * .BLADE
— HPC, 13STG 54H613-111 (72-35-00-7-20AC) (A2)(M)(N) 56H413-02 4 * .BLADE
— HPC, 13STG 54H613-112 (72-35-00-7-40AC) (A2)(M)(N) 56H413-03 4 * .BLADE
— HPC, 13STG 54H613-113 (72-35-00-7-30AC) (A2)(M)(N) 56H413-05 7 * .BLADE
— HPC, 13STG 54H613-115 (72-35-00-7-10AE) (A2)(M)(N) OR 51S013-01 7 * .BLADE
— HPC, 13STG 54H613-501 (1)(F)(N) 51S013-02 4 * .BLADE
— HPC, 13STG 54H613-502 (1)(F)(N) 51S013-03 4 * .BLADE
— HPC, 13STG 54H613-503 (1)(F)(N) 51S013-05 7 * .BLADE
— HPC, 13STG 54H613-505 (1)(F)(N) 14th Stage Blades 8 .BLADE
— HPC, 14STG 50S114-01 (C) 8 .BLADE
— HPC, 14STG 50S114-04 (C) 50S114-02 4 * .BLADE
— HPC, 14STG (B)

December 7/11 

# PW4ENG 72-817 Page 133 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S114-03 4 * .BLADE
— HPC, 14STG (B) OR 8 .BLADE
— HPC, 14STG 56H414-01 (72-35-00-8-10 H) (C2) 8 .BLADE
— HPC, 14STG 56H414-04 (72-35-00-8-15) (C2) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-01 60 * .BLADE
— HPC, 14STG (B) OR 68 .BLADE
— HPC, 14STG 53H314-401 (N) 50S114-04 60 * .BLADE
— HPC, 14STG (B) 50S114-02 4 * .BLADE
— HPC, 14STG 53H314-402 (B)(M)(N) 50S114-02 4 * .BLADE
— HPC, 14STG (B) 50S114-03 4 * .BLADE
— HPC, 14STG 53H314-403 (B)(M)(N) 50S114-03 4 * .BLADE
— HPC, 14STG (B) 50S114-05 AR * .BLADE
— HPC, 14STG 53H314-405 (1)(F)(N) OR 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AG) (N) 56H414-01 60 * .BLADE
— HPC, 14STG (A2) OR December 7/11 

# PW4ENG 72-817 Page 134 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 68 .BLADE
— HPC, 14STG 53H314-101 (72-35-00-8-10AG) (N) 56H414-04 60 * .BLADE
— HPC, 14STG (A2) 56H414-02 4 * .BLADE
— HPC, 14STG 53H314-102 (72-35-00-8-30AD) (A2)(M)(N) 56H414-02 4 * .BLADE
— HPC, 14STG (A2) 56H414-03 4 * .BLADE
— HPC, 14STG 53H314-103 (72-35-00-8-40AD) (A2)(M)(N) 56H414-03 4 * .BLADE
— HPC, 14STG (A2) 56H414-05 AR * .BLADE
— HPC, 14STG 53H314-105 (72-35-00-8-10AH) (A2)(M)(N) 14th Stage Pre-ground Blades 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 3 * .BLADE
— HPC, 14STG (F) OR 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) OR 56H614-01 7 * .BLADE
— HPC, 14STG 53H314-111 (72-35-00-8-10AJ) (A2)(M)(N) 56H614-02 4 * .BLADE
— HPC, 14STG 53H314-112 (72-35-00-8-30AE) (A2)(M)(N) 56H614-02 3 * .BLADE
— HPC, 14STG (A2) 56H614-03 4 * .BLADE
— HPC, 14STG 53H314-113 (72-35-00-8-40AE) (A2)(M)(N) 56H614-03 3 * .BLADE
— HPC, 14STG (A2) 56H614-05 7 * .BLADE
— HPC, 14STG 53H314-115 (72-35-00-8-10AH) (A2)(M)(N)

December 7/11 

# PW4ENG 72-817 Page 135 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition OR 51S014-01 7 * .BLADE
— HPC, 14STG 53H314-501 (1)(F)(N) 51S014-02 4 * .BLADE
— HPC, 14STG 53H314-502 (1)(F)(N) 51S014-02 3 * .BLADE
— HPC, 14STG (F) 51S014-03 4 * .BLADE
— HPC, 14STG 53H314-503 (1)(F)(N) 51S014-03 3 * .BLADE
— HPC, 14STG (F) 51S014-05 7 * .BLADE
— HPC, 14STG 53H314-505 (1)(F)(N) 15th Stage Blades 8 .BLADE
— HPC, 15STG 50S415-01 (C) 8 .BLADE
— HPC, 15STG 50S415-04 (C) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG (B) OR 8 .BLADE
— HPC, 15STG 56H415-01 (72-35-00-9-10 J) (C2) 8 .BLADE
— HPC, 15STG 56H415-04 (72-35-00-9-15) (C2) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-01 54 * .BLADE
— HPC, 15STG (B) OR December 7/11 

# PW4ENG 72-817 Page 136 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 62 .BLADE
— HPC, 15STG 52H415-401 (N) 50S415-04 54 * .BLADE
— HPC, 15STG (B) 50S415-02 4 * .BLADE
— HPC, 15STG 52H415-402 (B)(M)(N) 50S415-02 4 * .BLADE
— HPC, 15STG (B) 50S415-03 4 * .BLADE
— HPC, 15STG 52H415-403 (B)(M)(N) 50S415-03 4 * .BLADE
— HPC, 15STG (B) 50S415-05 AR * .BLADE
— HPC, 15STG 52H415-405 (1)(F)(N) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-01 54 * .BLADE
— HPC, 15STG (A2) OR 62 .BLADE
— HPC, 15STG 52H415-101 (72-35-00-9-10AE) (N) 56H415-04 54 * .BLADE
— HPC, 15STG (A2) 56H415-02 4 * .BLADE
— HPC, 15STG 52H415-102 (72-35-00-9-40AC) (A2)(M)(N) 56H415-02 4 * .BLADE
— HPC, 15STG (A2) 56H415-03 4 * .BLADE
— HPC, 15STG 52H415-103 (72-35-00-9-30AC) (A2)(M)(N) 56H415-03 4 * .BLADE
— HPC, 15STG (A2) 56H415-05 AR * .BLADE
— HPC, 15STG 52H415-105 (72-35-00-9-10AG) (A2)(M)(N) 15th Stage Pre-ground Blades 51S015-02 3 * .BLADE
— HPC, 15STG (F)

December 7/11 

# PW4ENG 72-817 Page 137 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 51S015-03 3 * .BLADE
— HPC, 15STG (F) OR 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) OR 56H515-01 7 * .BLADE
— HPC, 15STG 52H415-111 (72-35-00-9-10AH) (A2)(M)(N) 56H515-02 4 * .BLADE
— HPC, 15STG 52H415-112 (72-35-00-9-40AD) (A2)(M)(N) 56H515-02 3 * .BLADE
— HPC, 15STG (A2) 8 .BLADE
— HPC, 15STG 56H515-02 (C2) 56H515-03 4 * .BLADE
— HPC, 15STG 52H415-113 (72-35-00-9-30AD) (A2)(M)(N) 56H515-03 3 * .BLADE
— HPC, 15STG (A2) 56H515-05 7 * .BLADE
— HPC, 15STG 52H415-115 (72-35-00-9-10AJ) (A2)(M)(N) OR 51S015-01 7 * .BLADE
— HPC, 15STG 52H415-501 (1)(F)(N) 51S015-02 4 * .BLADE
— HPC, 15STG 52H415-502 (1)(F)(N) 51S015-02 3 * .BLADE
— HPC, 15STG (F) 51S015-03 4 * .BLADE
— HPC, 15STG 52H415-503 (1)(F)(N) 51S015-03 3 * .BLADE
— HPC, 15STG (F) 51S015-05 7 * .BLADE
— HPC, 15STG 52H415-505 (1)(F)(N) 54H767 2 * SHAFT
— HPC DRIVE, TURB (A)

December 7/11 

# PW4ENG 72-817 Page 138 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 54H792 1 * .AIR SEAL 54H846 (72-35-00-1-250 C) (2)(D)(C) 54H618 50 * .BOL T 50H376 (72-35-00-1-260) (2)(D)(C) 55H601 50 * .CLIP (D) 50N112 50 * .W ASHER (D) 786376 50 * .NUT OPTION 51H516 (72-35-00-1-270 A) (2)(A)(C)(O1) (O2) 53H367 1 * .HEA T SHIELD 50H100 (72-35-00-1-190) (2)(D)(C) AS3215-180 1 * .RET AINING RING AS3215-179 (72-35-00-1-200) (2)(D)(C) 53H472 1 * .COUNTERWEIGHT (D) 534494 1 * .RIVET (D) 1 .COUNTERWEIGHT 51H476 (72-35-00-9-50) (72-35-00-10-30) (C)
51A358 1 * NUT 50A722 (72-35-00-2-1 A) (2)(D)(C) The material data that f ollows is f or each engine. For PW4460(-3), PW4462(-3) Engines: New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition Configuration-1: Drum RotorAssembly Replacement In Compressor RotorAssembly, PN 58H575 50S225 1 COMPRESSOR ROTOR ASSY

— AXIAL 58H575 (72-35-00-1-90 P) (1)(NP)
50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 56H013-001 (72-35-00-1-210AE) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR
December 7/11 

# PW4ENG 72-817 Page 139 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 58H236-01 (72-35-00-1-210 E) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 54H803-002 (72-35-00-1-210AF) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) Configuration-2: Drum Rotor Assembly Replacement In Compressor Rotor Assembly, PN 56H378-002 56H378-003 1 COMPRESSOR ROTOR ASSY

— AXIAL 56H378-002 (72-35-00-1-90AF) (1)(NP)
50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 56H013-001 (72-35-00-1-210AE) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 58H236-01 (72-35-00-1-210 E) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 54H803-002 (72-35-00-1-210AF) (2)(A)(N)

December 7/11 

# PW4ENG 72-817 Page 140 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Qty Estimate ofUnit Price ($) Keyword Old PN Instructions
— Disposition 50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) Configuration-3: Drum Rotor Assembly Replacement In Compressor Rotor Assembly, PN 57H478-002 57H478-003 1 COMPRESSOR ROTOR ASSY

— AXIAL 57H478-002 (72-35-00-1-90AG) (1)(NP)
50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 56H013-001 (72-35-00-1-210AE) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 58H236-01 (72-35-00-1-210 E) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) OR 50S813-01 1 * .DISK
— ASSY OF, DRUM ROTOR 54H803-002 (72-35-00-1-210AF) (2)(A)(N)
50S154 8 * .LOCK ASSY
— HPC, 14STG 56H319 (72-35-00-8-50 D) (2)(A)(C) 50S153 8 * .LOCK ASSY
— HPC, 15STG 56H324 (72-35-00-9-60 D) (2)(A)(C) Modification and Spares Inf ormation Estimated part prices are provided when they are available at time of publication. The Estimate of Unit Price is only for planning purposes and does not constitute a firm quotation. An asterisk (*) is shown where part pricing information was unavailable. In either case, contact Pratt & Whitney Spares Management & Logistics for firm quotations. Parts Modification Conditions December 7/11 

# PW4ENG 72-817 Page 141 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).(1) The new part can be obtained by modification ofthe old part as specified in the Accomplishment Instructions. (2) The new part is a replacement part only, and cannot be obtained by modification of the old part. Spare Parts A vailability (A) The new part is available. (A2) The new part is an alternate replacement part and will continue to be supplied for use in other engine models. (B) The new part will be available approximately March 30, 2012. (C) The old part will continue to be supplied. (C2) The old part will continue to be supplied for use in other engine models. (D) The new part is a detail ofthe assembly
. It is available as a replacement part. (F) The new part will be available on a Full Manufacturing lead time quote basis only
. (M) It is possible to get the new part only by modification. (N) The old part is not available. (NP) The part is an item that is usually not procured as a spare item. (O1) Nut Option, PN 51H516, consists ofa Nut, PN 50H353, PN 50H354, PN 50H365 or PN 50H366. (O2) Nut Option, PN 786376, consists of a Nut, PN ST2115-12, PN ST2116-12, PN ST2117-12 or PN ST2667-12. V endor Services or Special Components/Materials Consumable Materials Specification Name P05-341 T ape, Plastic (Y ellow) (PMC 4134) P06-036 Antigallant Compound (PW A 36035) P06-041 Lubricant, Dry Film (PW A 36221) See Standard Practices Source Code List Material Data f or Each Spare Engine The material for each spare engine is as stated in the preceding material information section. Reidentified Parts Reidentified Parts Data New PN Keyword Old PN 50S325 COMPRESSOR ROTOR ASSY
— AXIAL 58H597

December 7/11 

# PW4ENG 72-817 Page 142 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Keyword Old PN 57H678-005 COMPRESSOR ROTOR ASSY
— AXIAL 57H678-004
50S225 COMPRESSOR ROTOR ASSY
— AXIAL 58H575
56H378-003 COMPRESSOR ROTOR ASSY
— AXIAL 56H378-002
57H478-003 COMPRESSOR ROTOR ASSY
— AXIAL 57H478-002
50S425-001 DISK
— ASSY OF, HPC DRUM ROTOR 53H923-001 50S425-001 DISK
— ASSY OF, HPC DRUM ROTOR 50H936-002 50S113-01 BLADE
— HPC, 13STG 54H613-401 50S113-02 BLADE
— HPC, 13STG 54H613-402 50S113-03 BLADE
— HPC, 13STG 54H613-403 50S113-05 BLADE
— HPC, 13STG 54H613-405 56H313-01 BLADE
— HPC, 13STG 54H613-101 56H313-02 BLADE
— HPC, 13STG 54H613-102 56H313-03 BLADE
— HPC, 13STG 54H613-103 56H313-05 BLADE
— HPC, 13STG 54H613-105 51S013-01 BLADE
— HPC, 13STG 54H613-501 51S013-02 BLADE
— HPC, 13STG 54H613-502 51S013-03 BLADE
— HPC, 13STG 54H613-503 51S013-05 BLADE
— HPC, 13STG 54H613-505 December 7/11 

# PW4ENG 72-817 Page 143 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Keyword Old PN 56H413-01 BLADE
— HPC, 13STG 54H613-111 56H413-02 BLADE
— HPC, 13STG 54H613-112 56H413-03 BLADE
— HPC, 13STG 54H613-113 56H413-05 BLADE
— HPC, 13STG 54H613-115 50S114-01 BLADE
— HPC, 14STG 53H314-401 50S114-02 BLADE
— HPC, 14STG 53H314-402 50S114-03 BLADE
— HPC, 14STG 53H314-403 50S114-05 BLADE
— HPC, 14STG 53H314-405 56H414-01 BLADE
— HPC, 14STG 53H314-101 56H414-02 BLADE
— HPC, 14STG 53H314-102 56H414-03 BLADE
— HPC, 14STG 53H314-103 56H414-05 BLADE
— HPC, 14STG 53H314-105 50S415-01 BLADE
— HPC, 15STG 52H415-401 50S415-02 BLADE
— HPC, 15STG 52H415-402 50S415-03 BLADE
— HPC, 15STG 52H415-403 50S415-05 BLADE
— HPC, 15STG 52H415-405 56H415-01 BLADE
— HPC, 15STG 52H415-101 56H415-02 BLADE
— HPC, 15STG 52H415-102 56H415-03 BLADE
— HPC, 15STG 52H415-103

December 7/11 

# PW4ENG 72-817 Page 144 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Keyword Old PN 56H415-05 BLADE
— HPC, 15STG 52H415-105 51S015-01 BLADE
— HPC, 15STG 52H415-501 51S015-02 BLADE
— HPC, 15STG 52H415-502 51S015-03 BLADE
— HPC, 15STG 52H415-503 51S015-05 BLADE
— HPC, 15STG 52H415-505 56H515-01 BLADE
— HPC, 15STG 52H415-111 56H515-02 BLADE
— HPC, 15STG 52H415-112 56H515-03 BLADE
— HPC, 15STG 52H415-113 56H515-05 BLADE
— HPC, 15STG 52H415-115 Necessary T ools Support Equipment available bef ore T ool No. Name Manufacturer PW A 78064 Gage Pratt & Whitney PW A 83135 Driver Pratt & Whitney PW A 83136 Extension Pratt & Whitney PW A 85595 Spreader, Manual Pratt & Whitney PW A 86448 Drift Pratt & Whitney Other Material Inf ormation Data Not Applicable.

December 7/11 

# PW4ENG 72-817 Page 145 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).Accomplishment Instructions For PW4052, PW4056, PW4060, PW4152, PW4156A, PW4158, PW4460, And PW4462 Engine Models 1. Replace the Compressor RotorAssembly, PN 58H597 with PN 50S325 ordo a modification of the Compressor Rotor Assembly, PN 58H597 as follows. A. Replace the Drum RotorAssembly, PN 50H936 or PN 53H923-01 with PN 50S425-01. See Figure 1. B. Replace lock and setscrew assemblies as follows: (1) Replace four 13th Stage Lock And Setscrew Assemblies, PN 56H318 with four PN 56H326. See Figure 2. (2) Replace four 14th Stage Lock And Setscrew Assemblies, PN 56H319 with eight PN 50S154. See Figure 3. (3) Replace four 15th Stage Lock And Setscrew Assemblies, PN 56H324 with eight PN 50S153. See Figure 4. C. Replace 13th, 14th and 15th stage blades as given in T able 1 or do a modification of the 13th, 14th and 15th stage blades by the procedure that follows. See Figure 2, 7, and 8. T able 1 New PN Old PN New PN Old PN 13th Stage Blades 13th Stage Pre-ground Blades 50S113-01 51S013-01 54H613-501 50S113-04 54H613-401 51S013-02 54H613-502 50S113-02 54H613-402 51S013-03 54H613-503 50S113-03 54H613-403 51S013-05 54H613-505 50S113-05 54H613-405 56H413-01 54H613-111 56H313-01 56H413-02 54H613-112 56H313-04 54H613-101 56H413-03 54H613-113 56H313-02 54H613-102 56H413-05 54H613-115 56H313-03 54H613-103 56H313-05 54H613-105 14th Stage Blades 14th Stage Pre-ground Blades 50S114-02 51S014-01 53H314-501 50S114-03 50S114-01 51S014-02 53H314-502 50S114-02 51S014-03 53H314-503 50S114-03 50S114-04 51S014-05 53H314-505

December 7/11 

# PW4ENG 72-817 Page 146 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Old PN New PN Old PN 56H414-02 56H614-01 53H314-111 56H414-03 56H414-01 56H614-02 53H314-112 50S414-02 56H614-03 53H314-113 50S414-03 56H414-04 56H614-05 53H314-115 50S114-01 50S114-04 53H314-401 50S114-02 53H314-402 50S114-03 53H314-403 50S114-05 53H314-405 56H414-01 56H414-04 53H314-101 56H414-02 53H314-102 56H414-03 53H314-103 56H414-05 53H314-105 15th Stage Blades 15th Stage Pre-ground Blades 50S415-02 51S015-01 52H415-501 50S415-03 50S415-01 51S015-02 52H415-502 50S415-02 51S015-03 52H415-503 50S415-03 50S415-04 51S015-05 52H415-505 56H415-02 56H515-01 52H415-111 56H415-03 56H415-01 56H515-02 52H415-112 50S415-02 56H515-03 52H415-113 50S415-03 56H415-04 56H515-05 52H415-115 50S415-01 50S415-04 52H415-401 50S415-02 52H415-402 50S415-03 52H415-403 50S415-05 52H415-405 56H415-01 56H415-04 52H415-101 56H415-02 52H415-102

December 7/11 

# PW4ENG 72-817 Page 147 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Old PN New PN Old PN 56H415-03 52H415-103 56H415-05 52H415-105 NOTE: Pre-ground blades (Reference 21, Service Bulletin No. PW4ENG 72-599) can be used in any rotor up to seven blades per stage in any combination in the rotor
. No more than three blades can be installed adjacent to each other
. (1) Inspect the 13th, 14th and 15th stage blades for square symbol in the time marking area. (a) Ifthe blades does not have square symbol, do the modification to include root chamfer as follows: 1 Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-19, 72-35-20, or 72-35-21, Inspection/Check-01 thru Inspection/Check-04. 2 Blend 13th, 14th and 15th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-19, 72-35-20, or 72-35-21, Repair-03. 3 Chamfer blade root to the dimensions specified in Figure 5. 4 Round edges as specified in Figure 5. 5 Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. 6 Reidentify the 13th, 14th and 15th stage blades as per T able 2. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. T able 2 New PN Old PN New PN Old PN 13th Stage Blades 13th Stage Pre-ground Blades 50S113-01 54H613-401 51S013-01 54H613-501 50S113-02 54H613-402 51S013-02 54H613-502 50S113-03 54H613-403 51S013-03 54H613-503 50S113-05 54H613-405 51S013-05 54H613-505 56H313-01 54H613-101 56H413-01 54H613-111 56H313-02 54H613-102 56H413-02 54H613-112 56H313-03 54H613-103 56H413-03 54H613-113 56H313-05 54H613-105 56H413-05 54H613-115 14th Stage Blades 14th Stage Pre-ground Blades 50S114-01 53H314-401 51S014-01 53H314-501 December 7/11 

# PW4ENG 72-817 Page 148 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Old PN New PN Old PN 50S114-02 53H314-402 51S014-02 53H314-502 50S114-03 53H314-403 51S014-03 53H314-503 50S114-05 53H314-405 51S014-05 53H314-505 56H414-01 53H314-101 56H614-01 53H314-111 56H414-02 53H314-102 56H614-02 53H314-112 56H414-03 53H314-103 56H614-03 53H314-113 56H414-05 53H314-105 56H614-05 53H314-115 15th Stage Blades 15th Stage Pre-ground Blades 50S415-01 52H415-401 51S015-01 52H415-501 50S415-02 52H415-402 51S015-02 52H415-502 50S415-03 52H415-403 51S015-03 52H415-503 50S415-05 52H415-405 51S015-05 52H415-505 56H415-01 52H415-101 56H515-01 52H415-111 56H415-02 52H415-102 56H515-02 52H415-112 56H415-03 52H415-103 56H515-03 52H415-113 56H415-05 52H415-105 56H515-05 52H415-115 NOTE: Blades without root chamfer must not be used with the new Drum RotorAssembly, PN 50S425-01, PN 50S425-001 and PN 50S813-01. (b) Ifthe blades have square symbol, do an inspection ofthe 13th Stage Blades, PN 54H613-401 and PN 54H613-101 for the platform width dimension. The dimension must be 0.9485
– 0.9515 inch (24.0919
– 24.1681 mm). NOTE: The 13th Stage Blades, PN 54H613-401 or PN 54H613-101, may have been previously modified (platform width) and marked with a square symbol will require inspection to the following dimension and if acceptable, identify with the new part number
. 1 Ifthe blade platform is within the limits, do a modification to include the root chamfer as follows: a Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-19, Inspection/Check-01 thru Inspection/Check-04. b Blend 13th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-19, Repair-03. c Chamfer blade root to the dimensions specified in Figure 5. d Round edges as specified in Figure 5. e Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. December 7/11 

# PW4ENG 72-817 Page 149 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).f Reidentify the 13th Stage Blades, PN 54H613-401 to PN 50S113-04 and PN 54H613-101 to PN 56H313-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. 2 Ifthe blade platform is not within the limits, modify the platform width and to include the root chamfer as follows. See Figure 6. a Modify the platform width to 0.9485
– 0.9515 inch (24.0919
– 24.1681mm) by machining or grinding as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-45-00, SPOP 530. b Reidentify the 13th Stage Blades, PN 54H613-401 or PN 54H613-101 as PN 50S113-04 or PN 56H313-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. c Install the modified HPC blades as required to meet the assembly platform gap requirements. Refer to the Reference 5, 6, or 7 Engine Manuals, Chapter/Section 72-35-38, Assembly-01 through -05, for the Front Drum Rotor Assembly or Chapter/Section 72-35-39 Assembly-03, Assembly-05 for the Rear Drum Rotor Assembly
. It is permissible to intermix new and modified blades to complete assembly requirements. d Unless otherwise specified ensure that the surface textures are 125 AA (3.2 microinch) Reference 1, Standard Practice Manual, PW A 388 and break all edges 0.003
– 0.010 inch (0.0762
– 0.254 mm). e Do a modification to include the root chamfer as follows: (1) Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-19, Inspection/Check-01 thru Inspection/Check-04. (2) Blend 13th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-19, Repair-03. (3) Chamfer blade root to the dimensions specified in Figure 5. (4) Round edges as specified in Figure 5. (5) Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. (6) Reidentify the 13th Stage Blades, PN 54H613-401 to PN 50S113-04 and PN 54H613-101 to PN 56H313-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. (c) Do an inspection of the 14th Stage Blades, PN 53H314-401 or PN 53H314-101 for the platform width dimension. The dimension must be 0.9735
– 0.9765 inch (24.7269
– 24.8031 mm). NOTE: The 14th Stage Blades, PN 53H314-401 or PN 53H314-101, may have been previously modified (platform width) and marked with a December 7/11 

# PW4ENG 72-817 Page 150 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).square symbol will require inspection to the following dimension and if acceptable, identify with the new part number
. 1 Ifthe blade platform is within the limits, do a modification to include the root chamfer as follows: a Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-20, Inspection/Check-01 thru Inspection/Check-04. b Blend 14th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-20, Repair-03. c Chamfer blade root to the dimensions specified in Figure 5. d Round edges as specified in Figure 5. e Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. f Reidentify the 14th Stage Blades, PN 53H314-401 or PN 53H314-101 as PN 50S114-04 or PN 56H414-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. 2 Ifthe blade platform is not within the limits, modify the platform width and to include the root chamfer as follows. See Figure 6. a Modify the platform width to 0.9735
– 0.9765 inch (24.7269
– 24.8031 mm) by machining or grinding as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-45-00, SPOP 530. See Figure 6. b Reidentify the 14th Stage Blades, PN 53H314-401 or PN 53H314-101 as PN 50S114-04 or PN 56H414-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. c Install the modified HPC blades as required to meet the assembly platform gap requirements. Refer to the Reference 5, 6, or 7 Engine Manuals, Chapter/Section 72-35-38, Assembly-01 through -05, for the Front Drum Rotor Assembly or Chapter/Section 72-35-39 Assembly-03, Assembly-05 for the Rear Drum Rotor Assembly
. It is permissible to intermix new and modified blades to complete assembly requirements. d Unless otherwise specified ensure that the surface textures are 125 AA (3.2 microinch) Reference 1, Standard Practice Manual, per PW A 388 and break all edges 0.003
– 0.010 inch (0.0762
– 0.254 mm). e Do a modification to include the root chamfer as follows: (1) Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-20, Inspection/Check-01 thru Inspection/Check-04. (2) Blend 14th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-20, Repair-03. (3) Chamfer blade root to the dimensions specified in Figure 5. December 7/11 

# PW4ENG 72-817 Page 151 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).(4) Round edges as specified in Figure 5. (5) Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. (6) Reidentify the 14th Stage Blades, PN 53H314-401 or PN 53H314-101 as PN 50S114-04 or PN 56H414-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. (d) Do an inspection of the 15th Stage Blades, PN 52H415-401 or PN 52H415-101 for the platform width dimension. The dimension must be 0.9735
– 0.9765 inch (24.7269
– 24.8031 mm). NOTE: The 15th Stage Blades, PN 52H415-401 or PN 52H415-101, may have been previously modified (platform width) and marked with a square symbol will require inspection to the following dimension and if acceptable, identify with the new part number
. 1 Ifthe blade platform is within the limits, do a modification to include the root chamfer as follows: a Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-21, Inspection/Check-01 thru Inspection/Check-04. b Blend the 15th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-21, Repair-03. c Chamfer blade root to the dimensions specified in Figure 5. d Round edges as specified in Figure 5. e Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. f Reidentify the 15th Stage Blades, PN 52H415-401 or PN 52H415-101 as PN 50S415-04 or PN 56H415-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. 2 Ifthe blade platform is not within the limits, modify the platform width and to include the root chamfer as follows. See Figure 6. a Modifythe platform width to 1.058
– 1.061 inch (26.8732
–26.9494 mm) by machining or grinding per SPOP 530. Refer to Reference 1, Standard Practice Manual, Chapter/Section 70-45-00. See Figure 6. b Identify the modified Blades, PN 52H415-401 or PN 52H415-101 as PN 50S415-04 or PN 56H415-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. c Install the modified HPC blades as required to meet the assembly platform gap requirements. Refer to the Reference 5, 6, or 7 Engine Manuals, Chapter/Section 72-35-38, Assembly-01 through -05, for the Front Drum Rotor Assembly or Chapter/Section December 7/11 

# PW4ENG 72-817 Page 152 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).72-35-39, Assembly-03, Assembly-05 for the Rear Drum Rotor Assembly
. It is permissible to intermix new and modified blades to complete assembly requirements. d Unless otherwise specified ensure that the surface textures are 125 AA (3.2 microinch) Reference 1, Standard Practice Manual, PW A 388 and break all edges 0.003
– 0.010 inch (0.0762
– 0.254 mm). e Do a modification to include the root chamfer as follows: (1) Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-21, Inspection/Check-01 thru Inspection/Check-04. (2) Blend the 15th stage blades bythe procedure in Reference 8, CIR Manual, Chapter/Section 72-35-21, Repair-03. (3) Chamfer blade root to the dimensions specified in Figure 5. (4) Round edges as specified in Figure 5. (5) Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. (6) Reidentify the 15th Stage Blades, PN 52H415-401 or PN 52H415-101 as PN 50S415-04 or PN 56H415-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. D. Add three 14th Stage Pre-ground Blades, PN 51S014-02 or PN 56H614-02 and add three 14th Stage Pre-ground Blades, PN 51S014-03 or PN 56H614-03. E. Add three 15th Stage Pre-ground Blades, PN 51S015-02 or PN 56H515-02 and add three 15th Stage Pre-ground Blades, PN 51S015-03 or 56H515-03. F
. Assemble the 13th stage, 14th stage, 15th stage blade, lock, and seals. See Appendix, Part A, Part B, and Part C for assembly instructions. G. Reidentify the modified Compressor Rotor Assembly, PN 58H597 as PN 50S325. Mark the new part number as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-11-00, Class 44. See Figure 9. For PW4052, PW4056, PW4060, PW4152, PW4156A, PW4158, PW4460, And PW4462 Engine Models That Incorporate Reference 9, Ser vice Bulletin No. PW4ENG 72-490, Reference 11, Ser vice Bulletin No. PW4ENG 72-504, Or Reference 16, Ser vice Bulletin No. PW4ENG 72-572 1. Replace Drum RotorAssembly, PN 50H936-002 or PN 53H923-001 by Options 1 and 2 as follows. See Figure 1. NOTE: There are two options based as stated below
. Option 1
— Replacement of drum rotor assembly with a Phase(-1) drum and modification ofthe drum to convert to a Phase(-3) drum. Option 2
— Replacement of drum rotor assembly with a Phase(-3) drum and replace parts given in T able 5 in sets.
December 7/11 

# PW4ENG 72-817 Page 153 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).Option 1
— Replacement of drum rotor assembly with a Phase(-1) drum and modification of the drum to convert to a Phase(-3) drum A. Replace the Drum Rotor Assembly, PN 50H936-002 or PN 53H923-001 with PN 50S425-01 and do a modification ofthe Drum RotorAssembly, PN 50S425-01 as follows. See Figure 3. (1) Do a modification ofthe knife edge seals on the Shaft, PN 50H445 as specified in Reference 9, Service Bulletin No. PW4ENG 72-490, Reference 11, Service Bulletin No. PW4ENG 72-504 or Reference 16, Service Bulletin No. PW4ENG 72-572, to support the brush seal configuration. (2) Reidentifythe modified Drum RotorAssembly, PN 50S425-01 as PN 50S425-001. Mark the new part number as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-11-00, Class 42. See Figure 10. B. Replace lock and setscrew assemblies as follows: (1) Replace four 13th Stage Lock And Setscrew Assemblies, PN 56H318 with four PN 56H326. See Figure 2. (2) Replace four 14th Stage Lock And Setscrew Assemblies, PN 56H319 with eight PN 50S154. See Figure 3. (3) Replace four 15th Stage Lock And Setscrew Assemblies, PN 56H324 with eight PN 50S153. See Figure 4. C. Replace 13th, 14th and 15th stage blades as given in T able 3 or do a modification of the 13th, 14th and 15th stage blades by the procedure that follows. See Figure 2, 7, and 8. T able 3 New PN Old PN New PN Old PN 13th Stage Blades 13th Stage Pre-ground Blades 50S113-01 51S013-01 54H613-501 50S113-04 54H613-401 51S013-02 54H613-502 50S113-02 54H613-402 51S013-03 54H613-503 50S113-03 54H613-403 51S013-05 54H613-505 50S113-05 54H613-405 56H413-01 54H613-111 56H313-01 56H413-02 54H613-112 56H313-04 54H613-101 56H413-03 54H613-113 56H313-02 54H613-102 56H413-05 54H613-115 56H313-03 54H613-103 56H313-05 54H613-105 14th Stage Blades 14th Stage Pre-ground Blades 50S114-02 51S014-01 53H314-501 50S114-03 50S114-01 51S014-02 53H314-502 December 7/11 

# PW4ENG 72-817 Page 154 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Old PN New PN Old PN 50S114-02 51S014-03 53H314-503 50S114-03 50S114-04 51S014-05 53H314-505 56H414-02 56H614-01 53H314-111 56H414-03 56H414-01 56H614-02 53H314-112 50S414-02 56H614-03 53H314-113 50S414-03 56H414-04 56H614-05 53H314-115 50S114-01 50S114-04 53H314-401 50S114-02 53H314-402 50S114-03 53H314-403 50S114-05 53H314-405 56H414-01 56H414-04 53H314-101 56H414-02 53H314-102 56H414-03 53H314-103 56H414-05 53H314-105 15th Stage Blades 15th Stage Pre-ground Blades 50S415-02 51S015-01 52H415-501 50S415-03 50S415-01 51S015-02 52H415-502 50S415-02 51S015-03 52H415-503 50S415-03 50S415-04 51S015-05 52H415-505 56H415-02 56H515-01 52H415-111 56H415-03 56H415-01 56H515-02 52H415-112 50S415-02 56H515-03 52H415-113 50S415-03 56H415-04 56H515-05 52H415-115 50S415-01 50S415-04 52H415-401 50S415-02 52H415-402 50S415-03 52H415-403 50S415-05 52H415-405 56H415-01 56H415-04 52H415-101 56H415-02 52H415-102 December 7/11 

# PW4ENG 72-817 Page 155 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Old PN New PN Old PN 56H415-03 52H415-103 56H415-05 52H415-105 NOTE: Pre-ground blades (Reference 21, Service Bulletin No. PW4ENG 72-599) can be used in any rotor up to seven blades per stage in any combination in the rotor
. No more than three blades can be installed adjacent to each other
. (1) Inspect the 13th, 14th and 15th stage blades for square symbol in the time marking area. (a) Ifthe blades does not have square symbol, do the modification to include root chamfer as follows: 1 Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-19, 72-35-20, or 72-35-21, Inspection/Check-01 thru Inspection/Check-04. 2 Blend 13th, 14th and 15th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-19, 72-35-20, or 72-35-21, Repair-03. 3 Chamfer blade root to the dimensions specified in Figure 5. 4 Round edges as specified in Figure 5. 5 Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. 6 Reidentify the 13th, 14th and 15th stage blades as per T able 4. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. T able 4 New PN Old PN New PN Old PN 13th Stage Blades 13th Stage Pre-ground Blades 50S113-01 54H613-401 51S013-01 54H613-501 50S113-02 54H613-402 51S013-02 54H613-502 50S113-03 54H613-403 51S013-03 54H613-503 50S113-05 54H613-405 51S013-05 54H613-505 56H313-01 54H613-101 56H413-01 54H613-111 56H313-02 54H613-102 56H413-02 54H613-112 56H313-03 54H613-103 56H413-03 54H613-113 56H313-05 54H613-105 56H413-05 54H613-115 14th Stage Blades 14th Stage Pre-ground Blades 50S114-01 53H314-401 51S014-01 53H314-501 December 7/11 

# PW4ENG 72-817 Page 156 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Old PN New PN Old PN 50S114-02 53H314-402 51S014-02 53H314-502 50S114-03 53H314-403 51S014-03 53H314-503 50S114-05 53H314-405 51S014-05 53H314-505 56H414-01 53H314-101 56H614-01 53H314-111 56H414-02 53H314-102 56H614-02 53H314-112 56H414-03 53H314-103 56H614-03 53H314-113 56H414-05 53H314-105 56H614-05 53H314-115 15th Stage Blades 15th Stage Pre-ground Blades 50S415-01 52H415-401 51S015-01 52H415-501 50S415-02 52H415-402 51S015-02 52H415-502 50S415-03 52H415-403 51S015-03 52H415-503 50S415-05 52H415-405 51S015-05 52H415-505 56H415-01 52H415-101 56H515-01 52H415-111 56H415-02 52H415-102 56H515-02 52H415-112 56H415-03 52H415-103 56H515-03 52H415-113 56H415-05 52H415-105 56H515-05 52H415-115 NOTE: Blades without root chamfer must not be used with the new Drum RotorAssembly, PN 50S425-01, PN 50S425-001 and PN 50S813-01. (b) Ifthe blades have square symbol, do an inspection ofthe 13th Stage Blades, PN 54H613-401 and PN 54H613-101 for the platform width dimension. The dimension must be 0.9485
– 0.9515 inch (24.0919
– 24.1681 mm). NOTE: The 13th Stage Blades, PN 54H613-401 or PN 54H613-101, may have been previously modified (platform width) and marked with a square symbol will require inspection to the following dimension and if acceptable, identify with the new part number
. 1 Ifthe blade platform is within the limits, do a modification to include the root chamfer as follows: a Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-19, Inspection/Check-01 thru Inspection/Check-04. b Blend 13th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-19, Repair-03. c Chamfer blade root to the dimensions specified in Figure 5. d Round edges as specified in Figure 5. e Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. December 7/11 

# PW4ENG 72-817 Page 157 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).f Reidentify the 13th Stage Blades, PN 54H613-401 to PN 50S113-04 and PN 54H613-101 to PN 56H313-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. 2 Ifthe blade platform is not within the limits, modify the platform width and to include the root chamfer as follows. See Figure 6. a Modify the platform width to 0.9485
– 0.9515 inch (24.0919
– 24.1681mm) by machining or grinding as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-45-00, SPOP 530. b Reidentify the 13th Stage Blades, PN 54H613-401 or PN 54H613-101 as PN 50S113-04 or PN 56H313-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. c Install the modified HPC blades as required to meet the assembly platform gap requirements. Refer to the Reference 5, 6, or 7 Engine Manuals, Chapter/Section 72-35-38, Assembly-01 through -05, for the Front Drum Rotor Assembly or Chapter/Section 72-35-39 Assembly-03, Assembly-05 for the Rear Drum Rotor Assembly
. It is permissible to intermix new and modified blades to complete assembly requirements. d Unless otherwise specified ensure that the surface textures are 125 AA (3.2 microinch) Reference 1, Standard Practice Manual, PW A 388 and break all edges 0.003
– 0.010 inch (0.0762
– 0.254 mm). e Do a modification to include the root chamfer as follows: (1) Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-19, Inspection/Check-01 thru Inspection/Check-04. (2) Blend 13th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-19, Repair-03. (3) Chamfer blade root to the dimensions specified in Figure 5. (4) Round edges as specified in Figure 5. (5) Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. (6) Reidentify the 13th Stage Blades, PN 54H613-401 to PN 50S113-04 and PN 54H613-101 to PN 56H313-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. (c) Do an inspection of the 14th Stage Blades, PN 53H314-401 or PN 53H314-101 for the platform width dimension. The dimension must be 0.9735
– 0.9765 inch (24.7269
– 24.8031 mm). NOTE: The 14th Stage Blades, PN 53H314-401 or PN 53H314-101, may have been previously modified (platform width) and marked with a December 7/11 

# PW4ENG 72-817 Page 158 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).square symbol will require inspection to the following dimension and if acceptable, identify with the new part number
. 1 Ifthe blade platform is within the limits, do a modification to include the root chamfer as follows: a Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-20, Inspection/Check-01 thru Inspection/Check-04. b Blend 14th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-20, Repair-03. c Chamfer blade root to the dimensions specified in Figure 5. d Round edges as specified in Figure 5. e Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. f Reidentify the 14th Stage Blades, PN 53H314-401 or PN 53H314-101 as PN 50S114-04 or PN 56H414-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. 2 Ifthe blade platform is not within the limits, modify the platform width and to include the root chamfer as follows. See Figure 6. a Modify the platform width to 0.9735
– 0.9765 inch (24.7269
– 24.8031 mm) by machining or grinding as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-45-00, SPOP 530. See Figure 6. b Reidentify the 14th Stage Blades, PN 53H314-401 or PN 53H314-101 as PN 50S114-04 or PN 56H414-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. c Install the modified HPC blades as required to meet the assembly platform gap requirements. Refer to the Reference 5, 6, or 7 Engine Manuals, Chapter/Section 72-35-38, Assembly-01 through -05, for the Front Drum Rotor Assembly or Chapter/Section 72-35-39 Assembly-03, Assembly-05 for the Rear Drum Rotor Assembly
. It is permissible to intermix new and modified blades to complete assembly requirements. d Unless otherwise specified ensure that the surface textures are 125 AA (3.2 microinch) Reference 1, Standard Practice Manual, per PW A 388 and break all edges 0.003
– 0.010 inch (0.0762
– 0.254 mm). e Do a modification to include the root chamfer as follows: (1) Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-20, Inspection/Check-01 thru Inspection/Check-04. (2) Blend 14th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-20, Repair-03. (3) Chamfer blade root to the dimensions specified in Figure 5. December 7/11 

# PW4ENG 72-817 Page 159 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).(4) Round edges as specified in Figure 5. (5) Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. (6) Reidentify the 14th Stage Blades, PN 53H314-401 or PN 53H314-101 as PN 50S114-04 or PN 56H414-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. (d) Do an inspection of the 15th Stage Blades, PN 52H415-401 or PN 52H415-101 for the platform width dimension. The dimension must be 0.9735
– 0.9765 inch (24.7269
– 24.8031 mm). NOTE: The 15th Stage Blades, PN 52H415-401 or PN 52H415-101, may have been previously modified (platform width) and marked with a square symbol will require inspection to the following dimension and if acceptable, identify with the new part number
. 1 Ifthe blade platform is within the limits, do a modification to include the root chamfer as follows: a Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-21, Inspection/Check-01 thru Inspection/Check-04. b Blend the 15th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-21, Repair-03. c Chamfer blade root to the dimensions specified in Figure 5. d Round edges as specified in Figure 5. e Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. f Reidentify the 15th Stage Blades, PN 52H415-401 or PN 52H415-101 as PN 50S415-04 or PN 56H415-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. 2 Ifthe blade platform is not within the limits, modify the platform width and to include the root chamfer as follows. See Figure 6. a Modifythe platform width to 1.058
– 1.061 inch (26.8732
–26.9494 mm) by machining or grinding per SPOP 530. Refer to Reference 1, Standard Practice Manual, Chapter/Section 70-45-00. See Figure 6. b Identify the modified Blades, PN 52H415-401 or PN 52H415-101 as PN 50S415-04 or PN 56H415-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. c Install the modified HPC blades as required to meet the assembly platform gap requirements. Refer to the Reference 5, 6, or 7 Engine Manuals, Chapter/Section 72-35-38, Assembly-01 through -05, for the Front Drum Rotor Assembly or Chapter/Section December 7/11 

# PW4ENG 72-817 Page 160 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).72-35-39, Assembly-03, Assembly-05 for the Rear Drum Rotor Assembly
. It is permissible to intermix new and modified blades to complete assembly requirements. d Unless otherwise specified ensure that the surface textures are 125 AA (3.2 microinch) Reference 1, Standard Practice Manual, PW A 388 and break all edges 0.003
– 0.010 inch (0.0762
– 0.254 mm). e Do a modification to include the root chamfer as follows: (1) Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-21, Inspection/Check-01 thru Inspection/Check-04. (2) Blend the 15th stage blades bythe procedure in Reference 8, CIR Manual, Chapter/Section 72-35-21, Repair-03. (3) Chamfer blade root to the dimensions specified in Figure 5. (4) Round edges as specified in Figure 5. (5) Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. (6) Reidentify the 15th Stage Blades, PN 52H415-401 or PN 52H415-101 as PN 50S415-04 or PN 56H415-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. D. Add three 14th Stage Pre-ground Blades, PN 51S014-02 or PN 56H614-02 and add three 14th Stage Pre-ground Blades, PN 51S014-03 or PN 56H614-03. E. Add three 15th Stage Pre-ground Blades, PN 51S015-02 or PN 56H515-02 and add three 15th Stage Pre-ground Blades, PN 51S015-03 or 56H515-03. F
. Assemble the 13th stage, 14th stage, 15th stage blade, lock, and seals. See Appendix, Part A, Part B, and Part C for assembly instructions. G. Reidentify the modified Compressor Rotor Assembly, PN 57H678-004 as PN 57H678-005. Mark the new part number as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-11-00, Class 44. See Figure 9. OR Option 2
— Replacement of drum rotor assembly with a Phase(-3) drum and replace parts in sets A. Replace the Drum Rotor Assembly, PN 53H923-001 or PN 50H936-002 with PN 50S813-01 and do the procedure that follows. See Figure 1. (1) Replace the parts as specified in T able 5 in sets. See Figure 7 and 8. T able 5 New PN Qty Keyword Old PN 54H767 1 SHAFT
— HPC DRIVE, TURB December 7/11 

# PW4ENG 72-817 Page 161 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Qty Keyword Old PN 54H792 1 AIR SEAL 54H846 54H618 50 BOL T 50H376 55H601 50 CLIP 50N112 50 W ASHER 786376 50 NUT OPTION 51H516 53H367 1 HEA T SHIELD 50H100 AS3215-180 1 RET AINING RING AS3215-179 53H472 5 COUNTERWEIGHT 534494 5 RIVET 1 COUNTERWEIGHT 51H476 51A358 1 NUT 50A722 B. Replace lock and setscrew assemblies as follows: (1) Replace four 13th Stage Lock And Setscrew Assemblies, PN 56H318 with four PN 56H326. See Figure 2. (2) Replace four 14th Stage Lock And Setscrew Assemblies, PN 56H319 with eight PN 50S154. See Figure 3. (3) Replace four 15th Stage Lock And Setscrew Assemblies, PN 56H324 with eight PN 50S153. See Figure 4. C. Replace 13th, 14th and 15th stage blades as given in T able 6 or do a modification of the 13th, 14th and 15th stage blades by the procedure that follows. See Figure 2, 7, and 8. T able 6 New PN Old PN New PN Old PN 13th Stage Blades 13th Stage Pre-ground Blades 50S113-01 51S013-01 54H613-501 50S113-04 54H613-401 51S013-02 54H613-502 50S113-02 54H613-402 51S013-03 54H613-503 50S113-03 54H613-403 51S013-05 54H613-505 50S113-05 54H613-405 56H413-01 54H613-111 56H313-01 56H413-02 54H613-112 56H313-04 54H613-101 56H413-03 54H613-113 56H313-02 54H613-102 56H413-05 54H613-115 56H313-03 54H613-103 56H313-05 54H613-105 December 7/11 

# PW4ENG 72-817 Page 162 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Old PN New PN Old PN 14th Stage Blades 14th Stage Pre-ground Blades 50S114-02 51S014-01 53H314-501 50S114-03 50S114-01 51S014-02 53H314-502 50S114-02 51S014-03 53H314-503 50S114-03 50S114-04 51S014-05 53H314-505 56H414-02 56H614-01 53H314-111 56H414-03 56H414-01 56H614-02 53H314-112 50S414-02 56H614-03 53H314-113 50S414-03 56H414-04 56H614-05 53H314-115 50S114-01 50S114-04 53H314-401 50S114-02 53H314-402 50S114-03 53H314-403 50S114-05 53H314-405 56H414-01 56H414-04 53H314-101 56H414-02 53H314-102 56H414-03 53H314-103 56H414-05 53H314-105 15th Stage Blades 15th Stage Pre-ground Blades 50S415-02 51S015-01 52H415-501 50S415-03 50S415-01 51S015-02 52H415-502 50S415-02 51S015-03 52H415-503 50S415-03 50S415-04 51S015-05 52H415-505 56H415-02 56H515-01 52H415-111 56H415-03 56H415-01 56H515-02 52H415-112 50S415-02 56H515-03 52H415-113 50S415-03 56H415-04 56H515-05 52H415-115 50S415-01 50S415-04 52H415-401 50S415-02 52H415-402 50S415-03 52H415-403 50S415-05 52H415-405 December 7/11 

# PW4ENG 72-817 Page 163 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).New PN Old PN New PN Old PN 56H415-01 56H415-04 52H415-101 56H415-02 52H415-102 56H415-03 52H415-103 56H415-05 52H415-105 NOTE: Pre-ground blades (Reference 21, Service Bulletin No. PW4ENG 72-599) can be used in any rotor up to seven blades per stage in any combination in the rotor
. No more than three blades can be installed adjacent to each other
. (1) Inspect the 13th, 14th and 15th stage blades for square symbol in the time marking area. (a) Ifthe blades does not have square symbol, do the modification to include root chamfer as follows: 1 Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-19, 72-35-20, or 72-35-21, Inspection/Check-01 thru Inspection/Check-04. 2 Blend 13th, 14th and 15th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-19, 72-35-20, or 72-35-21, Repair-03. 3 Chamfer blade root to the dimensions specified in Figure 5. 4 Round edges as specified in Figure 5. 5 Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. 6 Reidentify the 13th, 14th and 15th stage blades as per T able 7. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. T able 7 New PN Old PN New PN Old PN 13th Stage Blades 13th Stage Pre-ground Blades 50S113-01 54H613-401 51S013-01 54H613-501 50S113-02 54H613-402 51S013-02 54H613-502 50S113-03 54H613-403 51S013-03 54H613-503 50S113-05 54H613-405 51S013-05 54H613-505 56H313-01 54H613-101 56H413-01 54H613-111 56H313-02 54H613-102 56H413-02 54H613-112 56H313-03 54H613-103 56H413-03 54H613-113 December 7/11 

# PW4ENG 72-817 Page 164 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).New PN Old PN New PN Old PN 56H313-05 54H613-105 56H413-05 54H613-115 14th Stage Blades 14th Stage Pre-ground Blades 50S114-01 53H314-401 51S014-01 53H314-501 50S114-02 53H314-402 51S014-02 53H314-502 50S114-03 53H314-403 51S014-03 53H314-503 50S114-05 53H314-405 51S014-05 53H314-505 56H414-01 53H314-101 56H614-01 53H314-111 56H414-02 53H314-102 56H614-02 53H314-112 56H414-03 53H314-103 56H614-03 53H314-113 56H414-05 53H314-105 56H614-05 53H314-115 15th Stage Blades 15th Stage Pre-ground Blades 50S415-01 52H415-401 51S015-01 52H415-501 50S415-02 52H415-402 51S015-02 52H415-502 50S415-03 52H415-403 51S015-03 52H415-503 50S415-05 52H415-405 51S015-05 52H415-505 56H415-01 52H415-101 56H515-01 52H415-111 56H415-02 52H415-102 56H515-02 52H415-112 56H415-03 52H415-103 56H515-03 52H415-113 56H415-05 52H415-105 56H515-05 52H415-115 NOTE: Blades without root chamfer must not be used with the new Drum RotorAssembly, PN 50S425-01, PN 50S425-001 and PN 50S813-01. (b) Ifthe blades have square symbol, do an inspection ofthe 13th Stage Blades, PN 54H613-401 and PN 54H613-101 for the platform width dimension. The dimension must be 0.9485
– 0.9515 inch (24.0919
– 24.1681 mm). NOTE: The 13th Stage Blades, PN 54H613-401 or PN 54H613-101, may have been previously modified (platform width) and marked with a square symbol will require inspection to the following dimension and if acceptable, identify with the new part number
. 1 Ifthe blade platform is within the limits, do a modification to include the root chamfer as follows: a Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-19, Inspection/Check-01 thru Inspection/Check-04. b Blend 13th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-19, Repair-03. c Chamfer blade root to the dimensions specified in Figure 5. December 7/11 

# PW4ENG 72-817 Page 165 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).d Round edges as specified in Figure 5. e Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. f Reidentify the 13th Stage Blades, PN 54H613-401 to PN 50S113-04 and PN 54H613-101 to PN 56H313-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. 2 Ifthe blade platform is not within the limits, modify the platform width and to include the root chamfer as follows. See Figure 6. a Modify the platform width to 0.9485
– 0.9515 inch (24.0919
– 24.1681mm) by machining or grinding as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-45-00, SPOP 530. b Reidentify the 13th Stage Blades, PN 54H613-401 or PN 54H613-101 as PN 50S113-04 or PN 56H313-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. c Install the modified HPC blades as required to meet the assembly platform gap requirements. Refer to the Reference 5, 6, or 7 Engine Manuals, Chapter/Section 72-35-38, Assembly-01 through -05, for the Front Drum Rotor Assembly or Chapter/Section 72-35-39 Assembly-03, Assembly-05 for the Rear Drum Rotor Assembly
. It is permissible to intermix new and modified blades to complete assembly requirements. d Unless otherwise specified ensure that the surface textures are 125 AA (3.2 microinch) Reference 1, Standard Practice Manual, PW A 388 and break all edges 0.003
– 0.010 inch (0.0762
– 0.254 mm). e Do a modification to include the root chamfer as follows: (1) Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-19, Inspection/Check-01 thru Inspection/Check-04. (2) Blend 13th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-19, Repair-03. (3) Chamfer blade root to the dimensions specified in Figure 5. (4) Round edges as specified in Figure 5. (5) Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. (6) Reidentify the 13th Stage Blades, PN 54H613-401 to PN 50S113-04 and PN 54H613-101 to PN 56H313-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. December 7/11 

# PW4ENG 72-817 Page 166 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).(c) Do an inspection of the 14th Stage Blades, PN 53H314-401 or PN 53H314-101 for the platform width dimension. The dimension must be 0.9735
– 0.9765 inch (24.7269
– 24.8031 mm). NOTE: The 14th Stage Blades, PN 53H314-401 or PN 53H314-101, may have been previously modified (platform width) and marked with a square symbol will require inspection to the following dimension and if acceptable, identify with the new part number
. 1 Ifthe blade platform is within the limits, do a modification to include the root chamfer as follows: a Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-20, Inspection/Check-01 thru Inspection/Check-04. b Blend 14th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-20, Repair-03. c Chamfer blade root to the dimensions specified in Figure 5. d Round edges as specified in Figure 5. e Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. f Reidentify the 14th Stage Blades, PN 53H314-401 or PN 53H314-101 as PN 50S114-04 or PN 56H414-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. 2 Ifthe blade platform is not within the limits, modify the platform width and to include the root chamfer as follows. See Figure 6. a Modify the platform width to 0.9735
– 0.9765 inch (24.7269
– 24.8031 mm) by machining or grinding as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-45-00, SPOP 530. See Figure 6. b Reidentify the 14th Stage Blades, PN 53H314-401 or PN 53H314-101 as PN 50S114-04 or PN 56H414-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. c Install the modified HPC blades as required to meet the assembly platform gap requirements. Refer to the Reference 5, 6, or 7 Engine Manuals, Chapter/Section 72-35-38, Assembly-01 through -05, for the Front Drum Rotor Assembly or Chapter/Section 72-35-39 Assembly-03, Assembly-05 for the Rear Drum Rotor Assembly
. It is permissible to intermix new and modified blades to complete assembly requirements. d Unless otherwise specified ensure that the surface textures are 125 AA (3.2 microinch) Reference 1, Standard Practice Manual, per PW A 388 and break all edges 0.003
– 0.010 inch (0.0762
– 0.254 mm). e Do a modification to include the root chamfer as follows:
December 7/11 

# PW4ENG 72-817 Page 167 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).(1) Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-20, Inspection/Check-01 thru Inspection/Check-04. (2) Blend 14th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-20, Repair-03. (3) Chamfer blade root to the dimensions specified in Figure 5. (4) Round edges as specified in Figure 5. (5) Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. (6) Reidentify the 14th Stage Blades, PN 53H314-401 or PN 53H314-101 as PN 50S114-04 or PN 56H414-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. (d) Do an inspection of the 15th Stage Blades, PN 52H415-401 or PN 52H415-101 for the platform width dimension. The dimension must be 0.9735
– 0.9765 inch (24.7269
– 24.8031 mm). NOTE: The 15th Stage Blades, PN 52H415-401 or PN 52H415-101, may have been previously modified (platform width) and marked with a square symbol will require inspection to the following dimension and if acceptable, identify with the new part number
. 1 Ifthe blade platform is within the limits, do a modification to include the root chamfer as follows: a Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-21, Inspection/Check-01 thru Inspection/Check-04. b Blend the 15th stage blades by the procedure in Reference 8, CIR Manual, Chapter/Section 72-35-21, Repair-03. c Chamfer blade root to the dimensions specified in Figure 5. d Round edges as specified in Figure 5. e Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. f Reidentify the 15th Stage Blades, PN 52H415-401 or PN 52H415-101 as PN 50S415-04 or PN 56H415-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. 2 Ifthe blade platform is not within the limits, modify the platform width and to include the root chamfer as follows. See Figure 6. a Modifythe platform width to 1.058
– 1.061 inch (26.8732
–26.9494 mm) by machining or grinding per SPOP 530. Refer to Reference 1, Standard Practice Manual, Chapter/Section 70-45-00. See Figure 6.
December 7/11 

# PW4ENG 72-817 Page 168 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).b Identify the modified Blades, PN 52H415-401 or PN 52H415-101 as PN 50S415-04 or PN 56H415-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. c Install the modified HPC blades as required to meet the assembly platform gap requirements. Refer to the Reference 5, 6, or 7 Engine Manuals, Chapter/Section 72-35-38, Assembly-01 through -05, for the Front Drum Rotor Assembly or Chapter/Section 72-35-39, Assembly-03, Assembly-05 for the Rear Drum Rotor Assembly
. It is permissible to intermix new and modified blades to complete assembly requirements. d Unless otherwise specified ensure that the surface textures are 125 AA (3.2 microinch) Reference 1, Standard Practice Manual, PW A 388 and break all edges 0.003
– 0.010 inch (0.0762
– 0.254 mm). e Do a modification to include the root chamfer as follows: (1) Do the procedures in Reference 8, CIR Manual, Chapter/Section 72-35-21, Inspection/Check-01 thru Inspection/Check-04. (2) Blend the 15th stage blades bythe procedure in Reference 8, CIR Manual, Chapter/Section 72-35-21, Repair-03. (3) Chamfer blade root to the dimensions specified in Figure 5. (4) Round edges as specified in Figure 5. (5) Apply antigalling compound to the repair area as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-41-00, SPOP 146. (6) Reidentify the 15th Stage Blades, PN 52H415-401 or PN 52H415-101 as PN 50S415-04 or PN 56H415-04. Mark the new part number as specified in Reference 1, Standard Practice Manual, Chapter/Section 70-11-00, Class 40. See Figure 5. D. Add three 14th Stage Pre-ground Blades, PN 51S014-02 or PN 56H614-02 and add three 14th Stage Pre-ground Blades, PN 51S014-03 or PN 56H614-03. E. Add three 15th Stage Pre-ground Blades, PN 51S015-02 or PN 56H515-02 and add three 15th Stage Pre-ground Blades, PN 51S015-03 or 56H515-03. F
. Assemble the 13th stage, 14th stage, 15th stage blade, lock, and seals. See Appendix, Part A, Part B, and Part C for assembly instructions. G. Reidentify the modified Compressor Rotor Assembly, PN 57H678-004 as PN 57H678-005. Mark the new part number as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-11-00, Class 44. See Figure 9. For PW4052(-3), PW4056(-3), PW4060(-3), PW4062(-3), PW4062A(-3), PW4152(-3), PW4156A(-3), PW4158(-3), PW4460(-3), PW4462(-3) Engines Models 1. Replace the Drum RotorAssembly, PN 54H803-002, PN 58H236-01 or PN 56H013-001 with PN 50S813-01 as follows. See Figure 1. December 7/11 

# PW4ENG 72-817 Page 169 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).A. Replace lock and setscrew assemblies as follows: (1) Replace eight 14th Stage Lock And Setscrew Assemblies, PN 56H319 with eight PN 50S154. See Figure 3. (2) Replace eight 15th Stage Lock And Setscrew Assemblies, PN 56H324 with eight PN 50S153. See Figure 4. B. Assemble the 13th stage, 14th stage, 15th stage blade, lock, and seals. See Appendix, Part A, Part B, and Part C for assembly instructions. C. Reidentify the modified Compressor Rotor Assembly as specified in T able 8. Mark the new part number as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-11-00, Class 44. See Figure 9. T able 8 New PN Old PN 50S225 58H575 56H378-003 56H378-002 57H478-003 57H478-002

December 7/11 

# PW4ENG 72-817 Page 170 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).LOCA TION OF THE HPC REAR DRUM ROTOR ASSEMBL Y 72-35-00 FIGURE 1 December 7/11 

# PW4ENG 72-817 Page 171 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).LOCA TION OF THE 13TH ST AGE LOCK AND SETSCREW ASSEMBL Y AND BLADE 72-35-00 FIGURE 2 December 7/11 

# PW4ENG 72-817 Page 172 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).LOCA TION OF THE 14TH ST AGE LOCK AND SETSCREW ASSEMBL Y AND BLADE 72-35-00 FIGURE 3 December 7/11 

# PW4ENG 72-817 Page 173 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).LOCA TION OF THE 15TH ST AGE LOCK AND SETSCREW ASSEMBL Y AND BLADE 72-35-00 FIGURE 4 December 7/11 

# PW4ENG 72-817 Page 174 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).

### THIS P AGE IS EMPTY

December 7/11 

# PW4ENG 72-817 Page 175 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.MODIFICA TION OF 13TH, 14TH AND 15TH ST AGE BLADES FIGURE 5
December 7/11 

# PW4ENG 72-817 Page 176 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).1. 0.040
– 0.060 Inch (1.016
– 1.524 mm) Four Places. 2. 56° 30’ ± 2° Four Places. 3. 0.020
– 0.030 Inch (0.508
– 0.762 mm) Radius, T wo Sides. 4. Round Edges, 0.005
– 0.040 Inch (0.127
– 1.016 mm). Smooth Transition Necessary With Adjacent Radii. KEY TO FIGURE 5

December 7/11 

# PW4ENG 72-817 Page 177 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).MODIFICA TION OF 13TH, 14TH AND 15TH ST AGE BLADES FIGURE 6
December 7/11 

# PW4ENG 72-817 Page 178 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).LOCA TION OF THE HPC DRIVE TURBINE SHAFT 72-35-00 FIGURE 7 December 7/11 

# PW4ENG 72-817 Page 179 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).LOCA TION OF THE COUNTERWEIGHTS 72-35-00 FIGURE 8 December 7/11 

# PW4ENG 72-817 Page 180 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).MARKING LOCA TION OF THE COMPRESSOR ROTOR ASSEMBL Y FIGURE 9
December 7/11 

# PW4ENG 72-817 Page 181 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).MARKING LOCA TION OF THE DRUM ROTOR DISK ASSEMBL Y FIGURE 10
December 7/11 

# PW4ENG 72-817 Page 182 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).Appendix Parts Progression to Show the Changed Part in Relation to Other Parts

COMPRESSOR ROTOR ASSEMBL Y FOR PHASE(-1) AND CONVERTED PHASE(-3) ENGINES CHART A

COMPRESSOR ROTOR ASSEMBL Y FOR PHASE(-3) ENGINES CHART B December 7/11 

# PW4ENG 72-817 Page 183 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).DRUM ROTOR DISK ASSEMBL Y FOR PHASE (-1) AND CONVERTED PHASE(-3) ENGINES CHART C

DRUM ROTOR DISK ASSEMBL Y FOR PHASE(-3) ENGINES CHART D

13TH, 14TH AND 15TH ST AGE LOCK AND SETSCREW ASSEMBL Y CHART E
December 7/11 

# PW4ENG 72-817 Page 184 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).13TH ST AGE BLADES CHART F

14TH ST AGE BLADES CHART G

December 7/11 

# PW4ENG 72-817 Page 185 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).15TH ST AGE BLADES CHART H Added Data Internal Reference Inf ormation Revision No. Reference Document Origination Original EC09KA021 EC09KA021G EC09KA021X EC09KA021Y EC10KK044T RG/IEL
Number values shown in parentheses adjacent to U.S. values are International System of units (SI) equivalents. T o calculate part life, include the hours and/or cycles since the part was made. Use the total hours or cycles to calculate life limits that are the result of part modification, a part used in an engine with dif ferent thrust, or for some other reason. Revision to T able of Limits Reference 5, 6, and 7 Engine Manuals, Chapter/Section 05-10-00, Revision 99, dated September 1, 2012 is scheduled to incorporate the Part Service Life Limits related to this Service Bulletin and will take precedence over the Service Bulletin.

December 7/11 

# PW4ENG 72-817 Page 186 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).Revision to T able of Limits life cycles is as f ollows: Model Part Number Part Name Life Limit (cycles) PW4052, PW4056, PW4152 50S425-01 DISK
— ASSY OF, HPC DRUM ROTOR 20,000 PW4060, PW4156A, PW4158, PW4460, PW4462 50S425-01 DISK
— ASSY OF, HPC DRUM ROTOR 15,000 PW4052(-3), PW4056(-3), PW4152(-3) 50S425-001 DISK
— ASSY OF, HPC DRUM ROTOR 20,000 PW4060(-3), PW4062(-3), PW4062A(-3), PW4156A(-3), PW4158(-3), PW4460(-3), PW4462(-3) 50S425-001 DISK
— ASSY OF, HPC DRUM ROTOR 15,000

PW4052(-3), PW4056(-3), PW4152(-3) 50S813-01 DISK
— ASSY OF, HPC DRUM ROTOR 20,000 PW4060(-3), PW4062(-3), PW4062A(-3), PW4156A(-3), PW4158(-3), PW4460(-3), PW4462(-3) 50S813-01 DISK
— ASSY OF, HPC DRUM ROTOR 15,000

Appendix NOTE: Reference 5, 6, and 7 Engine Manuals, Revision 99, dated September 1, 2012 are scheduled to incorporate the revised assembly instructions related to this Service Bulletin and will take precedence over the Service Bulletin. Part A: Assemble 13th Stage Blades, Locks And Ladder Seals By The Procedure That Follows: 1. Install 13th stage blades in the axial compressor rotor assembly with Drum Rotor Assembly, PN 50S813-01 by the procedure that follows. See Figures 11 thru 17. NOTE: There are three part numbers (sets) of blades provided for this stage. Set T ype A, contains most ofthe blades to be installed around the drum. Set T ype B, has notches in the right edge of blade platforms. Set T ype C, has notches in the left edge of blade platforms. When T ypes B and C blades are placed together, clearance is formed for a blade lock. Set T ype A has wide and narrow platforms based on part number so that these blades can be used for fitting. For ease of assembly, blades in this procedure will be referred to as T ypes A, B, and C. See Figure 11. A. Use an approved marking pen to make a "V" mark directly above the two loading slots 180° apart and four locking slots. Make the marks on the upper rail ofthe 13th stage disk. These December 7/11 

# PW4ENG 72-817 Page 187 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).marks will be used forfuture reference. Refer to temporary marking of parts as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-11-00. See Figure 12. CAUTION: WHEN YOU NEED TO MOVE AND SET THE BLADES IN THE ASSEMBL Y PROCEDURE WHICH FOLLOWS, USE THE PW A 86448 DRIFT
. THE USE OF A DIFFERENT METHOD TO MOVE AND SET THE BLADES CAN CAUSE AIRFOIL DAMAGE. B. Remove the 13th stage blades from their storage rack and put them on a work bench. Find the four T ype B and four T ype C blades and move them to one side. See Figure 11. C. Move to the one ofthe loading slots and install blades into the 13th stage disk rail with the blades convex side up as follows: (1) Install four T ype B blades into the loading slot and put them so that the right side platform ofthe fourth blade is located midway in the loading slot located 180° from the assembler
. (2) Install four T ype C against the last installed blades. (3) Install 35 T ype A wide platform (regular) blades against the locking blade. D. Install blades counter-clockwise (left to right) with the blades convex side up as follows: (1) Install 14 T ype A wide platform (regular) blades against the locking blades. (2) Install 20 T ype A narrow platform (spacer) blades against the last installed blade. NOTE: A total of 77 blades are installed at this time. One regular blade is not installed at this time. E. Measure and record the width ofthe remaining regular blade platform. NOTE: Do not install the remaining blade at this time. F
. At the blade gap, move the blades tangentially to make the widest possible space between two blades. This space will be measured and used to calculate the specified clearance between the blades. (1) Use a PW A 85595, Spreader, with grooves in thejaws against the blade platforms, to apply a tangential force to the blades. (2) Expand the spreaderto get the widest possible distance between the blade platforms. Make sure that each blade platform touches the adjacent blade platform. Ifyou need help to move the blades, you can tap lightly on the base of the airfoil with a PW A 86448, Drift. (3) Pull the blades in a radially outward direction to prevent a circumferential serpentine shape to the blades. (4) If necessary, adjust the spreader to get the widest possible distance between the blade platforms. (5) With the blade spreader in place, use a dial caliper to measure the blade gap (space dimension made by the missing blade). (6) Record the clearance dimension. G. Calculate the initial blade clearance dimension. Initial clearance "C" = Blade Space Dimension - Blade Width H. Ifthe initial clearance "C" is equal to or greater than 0.010 inch (0.254 mm) and less than or equal to 0.030 inch (0.762 mm) go to blade installation. December 7/11 

# PW4ENG 72-817 Page 188 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).I. Ifthe initial clearance "C" is greater than 0.030 inch (0.762 mm), go to blade installation Method A. J. If the initial clearance "C" is less than 0.010 inch (0.254 mm), go to blade installation Method B. K. T ype A blade selection, Method A. (1) Calculate the number of T ype A narrow platform (spacer) blades you must replace with T ype A wide platform (regular) blades. (2) Calculate Clearance "D". Clearance "D" = Initial Clearance "C" - 0.020 inch or Clearance "D" = Initial Clearance "C" - (0.508 mm). (3) Calculate the number of blades to replace "E". "E" = Clearance "D"/0.010 inch or "E" = Clearance "D"/(0.254 mm). (4) Round of fthe number of blades "E" to the nearest whole number to get the number of T ype A wide platform (regular) blades that you must add. Remove one narrow platform (spacer) blade for each wide platform (regular) blade that you add. Example 1: Blade Width = 0.960 inch. Blade Space = 0.991 inch. Initial Clearance "C" = Blade Space - Blade Width Dimension "C" = 0.991 - 0.960 inch. "C" = 0.031 inch Clearance "D" = Initial Space "C" - 0.020 inch "D" = 0.031 - 0.020 inch. "D" = 0.011 inch Calculate the number of blades to replace "E" "E" = "D"/0.010 inch "E" = 0.011 inch/0.010 inch "E" = 1.1 Round to the nearest whole number to get the number of blades to add. "E" = 1 T ype A wide platform (regular) blade L. T ype A blade selection, Method B. (1) Calculate the number ofT ype A wide platform (regular) blades you must replace with T ype A narrow platform (spacer) blades. (2) Calculate the Clearance "D". Clearance "D" = Initial Clearance "C" - 0.020 inch or, Clearance "D" = Initial Clearance "C" - (0.508 mm) (3) Calculate the number of blades to replace "E". "E" = Clearance "D"/0.010 inch or, "E" = Clearance "D"/(0.254 mm) (4) Round of fthe number of blades "E" to the nearest whole number to get the number of T ype A narrow platform (spacer) blades that you must add. Remove one wide platform (regular) blade for each narrow platform (spacer) blade that you add. Example 2: Blade Width = 0.960 inch. Blade Space = 0.926 inch Initial Clearance "C" = Blade Space - Blade Width Dimension December 7/11 

# PW4ENG 72-817 Page 189 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3)."C" = 0.926 - 0.960 inch. "C" = -0.034 inch Clearance "D" = Initial Clearance "C" - 0.020 inch "D" = -0.034 - 0.020 inch. "D" = -0.054 inch Calculate the number of blades to replace "E". "E" = "D"/0.010 inch "E" = -0.054 inch/0.010 inch "E" = -5.4. Round "E" to the nearest whole number and drop the minus sign to get the number of blades to add. "E" = 5 T ype A narrow platform (spacer) blades. M. Turn the entire blade set clockwise approximately half the width of a blade platform to get the blade loading slot. NOTE: Y ou can use T ape (P05-341) or equivalent at the opposite loading slot so that the blades will not fall from the loading slot. N. Install the remaining blade(s), including any replacement blades convex side up. O. Move the blades tangentially to make the widest possible clearance. Make sure that each blade platform touches the adjacent blade platform. Pull the blades in a radially outward direction to prevent a circumferential serpentine shape to the blades. P
. Use a feeler gage to make sure that the gap (clearance) between the blade platforms is between 0.010 − 0.030 inch (0.25 − 0.76 mm). Ifthe clearance is not in the limits, you must do the above blade installation procedure and clearance calculation again. Q. Turn the blade set to remove the blades from the drum. R. Based on the part number suf fix, put the blades into a tray in the sequence shown in T able 15 ifyou will use 18 spacer blades, T able 16 ifyou will use 20 spacer blades, or T able 17 if you will use 22 spacer blades. S. Ifyou replace T ype A blades to get the correct blade clearance space, put the replacement blades in the correct position as follows: (1) Put the T ype A wide platform (regular) blades 180° apart and the T ype A narrow platform (spacer) blades 180° apart as best possible. (2) Equally space the wide platform (regular) and narrow platform (spacer) blades around the disk as best possible. T
. Use an approved marking pen to make a mark on each blade to show its sequence number shown in T able 15. The mark should be on the convex side ofthe upper tip corner. T able 15: Blade Location/Blade Part Number Suf fix BLADE LOCA TION NUMBERS IF YOU USE 18 SP ACER BLADES Column 1 Column 2 Column 3 Column 4 Column 5 Column 6 # Blade # Blade # Blade # Blade # Blade # Blade 1 -01 14 -01 27 -04 40 -01 53 -01 66 -04 2 -01 15 -04 28 -01 41 -01 54 -04 67 -01 3 -04 16 -01 29 -01 42 -04 55 -01 68 -01 December 7/11 

# PW4ENG 72-817 Page 190 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).BLADE LOCA TION NUMBERS IF YOU USE 18 SP ACER BLADES 4 -01 17 -01 30 -04 43 -01 56 -01 69 -04 5 -01 18 -01 31 -01 44 -01 57 -01 70 -01 6 -01 19 -02 32 -01 45 -01 58 -02 71 -01 7 -04 20 -03 33 -04 46 -04 59 -03 72 -04 8 -01 21 -02 34 -01 47 -01 60 -02 73 -01 9 -01 22 -03 35 -01 48 -01 61 -03 74 -01 10 -01 23 -01 36 -04 49 -01 62 -01 75 -04 11 -04 24 -01 37 -01 50 -04 63 -01 76 -01 12 -01 25 -01 38 -01 51 -01 64 -01 77 -01 13 -01 26 -04 39 -01 52 -01 65 -04 78 -01 NOTE: The blade part number suf fixes in this table are based on T ype A (regular) blades that have wide platforms with Suf fix -01, T ype A (spacer) blades that have narrow platforms with Suf fix -04, T ype B blades with Suf fix -02, and T ype C blades with Suf fix -03. This chart does not showT ype A replaced blades, ifany, that can be necessaryto adjust the clearance between the blade platforms. See the text for replacement blade requirements. T able 16: Blade Location/Blade Part Number Suf fix BLADE LOCA TION NUMBERS IF YOU USE 20 SP ACER BLADES Column 1 Column 2 Column 3 Column 4 Column 5 Column 6 # Blade # Blade # Blade # Blade # Blade # Blade 1 -01 14 -01 27 -01 40 -01 53 -01 66 -01 2 -01 15 -04 28 -01 41 -01 54 -04 67 -01 3 -04 16 -01 29 -04 42 -04 55 -01 68 -04 4 -01 17 -01 30 -01 43 -01 56 -01 69 -01 5 -01 18 -01 31 -01 44 -01 57 -01 70 -01 6 -04 19 -02 32 -04 45 -04 58 -02 71 -04 7 -01 20 -03 33 -01 46 -01 59 -03 72 -01 8 -01 21 -02 34 -01 47 -01 60 -02 73 -01 9 -04 22 -03 35 -04 48 -04 61 -03 74 -04 10 -01 23 -01 36 -01 49 -01 62 -01 75 -01 11 -01 24 -01 37 -01 50 -01 63 -01 76 -01

December 7/11 

# PW4ENG 72-817 Page 191 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).BLADE LOCA TION NUMBERS IF YOU USE 20 SP ACER BLADES 12 -04 25 -04 38 -04 51 -04 64 -04 77 -04 13 -01 26 -01 39 -01 52 -01 65 -01 78 -01 NOTE: The blade part number suf fixes in this table are based on T ype A (regular) blades that have wide platforms with Suf fix-01, T ype A (spacer) blades that have narrow platforms with Suf fix -04, T ype B blades with Suf fix -02, and T ype C blades with Suf fix -03. This chart does not showT ype A replaced blades, ifany, that can be necessaryto adjust the clearance between the blade platforms. See the text for replacement blade requirements. T able 17: Blade Location/Blade Part Number Suf fix BLADE LOCA TION NUMBERS IF YOU USE 22 SP ACER BLADES Column 1 Column 2 Column 3 Column 4 Column 5 Column 6 # Blade # Blade # Blade # Blade # Blade # Blade 1 -04 14 -01 27 -01 40 -04 53 -01 66 -01 2 -01 15 -01 28 -04 41 -01 54 -01 67 -04 3 -01 16 -04 29 -01 42 -01 55 -04 68 -01 4 -04 17 -01 30 -01 43 -04 56 -01 69 -01 5 -01 18 -01 31 -04 44 -01 57 -01 70 -04 6 -01 19 -02 32 -01 45 -01 58 -02 71 -01 7 -04 20 -03 33 -01 46 -01 59 -03 72 -01 8 -01 21 -02 34 -04 47 -01 60 -02 73 -04 9 -01 22 -03 35 -01 48 -01 61 -03 74 -01 10 -04 23 -01 36 -01 49 -04 62 -01 75 -01 11 -01 24 -01 37 -04 50 -01 63 -01 76 -04 12 -01 25 -04 38 -01 51 -01 64 -04 77 -01 13 -04 26 -01 39 -01 52 -04 65 -01 78 -01 NOTE: The blade part number suf fixes in this table are based on T ype A (regular) blades that have wide platforms with Suf fix-01, T ype A (spacer) blades that have narrow platforms with Suf fix-04, T ype B blades with Suf fix-02, and T ype C blades with Suf fix-03. This chart does not showT ype A replaced blades, ifany, that can be necessaryto adjust the clearance between the blade platforms. See the text for replacement blade requirements. U. Make marks to identify the two ladder seals as follows: (1) Put the two ladder seals on a work bench with the "X" mark down. December 7/11 

# PW4ENG 72-817 Page 192 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).(2) Put a Number 1 (#1) mark on one of the ladder seals and a Number 2 (#2) mark on the second seal. NOTE: Ladder seal #1 blade slot farthest to the right is the position for blade No. 1 and the next slot to the left is the blade No. 2 and so on. The 19th, 20th, 21st, and 22nd slots are locking blade slots. The openings (cut rungs) between the 19th, 20th, 21st, and 22nd slots are for blade locks. Ladder seal #2 blade slot farthest to the right is the position for blade No. 40 and the next slot to the left is for blade No. 41 and so on. The 58th, 59th, 60th and 61st slots are locking blade slots. The openings (cut rungs) between the 58th and 59th, 60th and 61st slots are for blade locks. V
. Install blades with two assemblers (preferred method). CAUTION: IN THE FOLLOWING STEPS HANDLE THE LADDER SEAL WITH CARE. DO NOT BEND OR FOLD THE SEAL SUCH THA T THE SHAPE BECOMES DEFORMED. (1) In the following steps, you can apply Antigallant Compound, P06-036 or Dry Film Lubricant, P06-041 to the ladder seal, disk rim and rails to help assemble the blades and seals in the disk. (2) Assembler 1: (a) Put the ladder seal #1 over one loading slot on the 13th stage disk rim with the X mark on the seal up (engine forward) and the flat surface toward the assembler
. (b) Align the seal circumferentially so that the cut ring (lock position) on the seal is over one disk lock slot at one location. A rung of the seal must be over the loading slot. (c) Adjust the seal as necessary to install blade No. 21 through the seal and the loading slot. NOTE: When you install the blades, make sure that the seals are installed between the disk rails. Move the blades, locks, and seals in the disk rail as necessary to complete the blade installation procedure. (3) Assembler 2: (a) Put the ladder seal #2 over the remaining loading slot on the disk rim. The X mark on the seal up (engine forward) and the flat surface toward the assembler
. NOTE: In the following steps you will install the blades clockwise (right to left). (b) Align the seal circumferentially so that the cut rung (lock position) on the seal is over one 13th stage disk lock slot 180° from seal No. 1. A rung of the seal must be over the loading slot. (c) Adjust the ladder seal as necessary to install blade No. 60 through the seal and the loading slot. NOTE: When you install the blades, make sure that the seals are installed between the disk rails. Move the blades, locks, and seals in the disk rail as necessary to complete the blade installation procedure. (4) Assembler 1: (a) Install blade No. 21 (-02) through the ladder seal and into the loading slot, convex side up. December 7/11 

# PW4ENG 72-817 Page 193 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).(5) Assembler 2: (a) Install blade No. 60 (-02) through the ladder seal and into the loading slot, convex side up. (6) Turn the blades and seals in the disk rail as needed to put the cut ring in the ladder seal with the loading slot in the disk. (7) Install one lock assembly each, through the loading slot into the disk rail and hold the lock assembly against the installed blade Nos. 21 and 60. (8) Turn the blades and seals in the disk rail as needed to install the next blade in each ladder seal. (9) Assembler 1: (a) Install blade No. 22 (-03) through the ladder seal and the loading slot. (10) Assembler 2: (a) Install blade No. 61 (-03) through the ladder seal and the loading slot. (11) Turn the blades and seals in the disk rail as needed to install the next blade in each seal. (12) Assembler 1: (a) Install blade No. 23 through the ladder seal and the loading slot. (13) Assembler 2: (a) Install blade No. 62 through the ladder seal and the loading slot. (14) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (15) Assembler 1: (a) Install blade No. 24 through the ladder seal and the loading slot. (16) Assembler 2: (a) Install blade No. 63 through the ladder seal and the loading slot. (17) Use the above procedure and continue to assemble the blades in ascending numerical order
. (18) Assembler 1: (a) Use the same loading slot to install blade Nos. 40, 41, and so on in ladder seal #2 until the set of locking blades and lock assembly slots (cut rung) is at the disk loading slot. (19) Assembler 2: (a) Use the same loading slot to install blade Nos. 1, 2, and so on in ladder seal #1 until the set of locking blades and lock assembly slots (cut rung) is at the disk loading slot. (20) Put T ape, P05-341 over the two groups of installed blades to loosely hold the blade groups together
. (21) Turn the blades, locks, and seals around the disk rail to install the remaining locking blades and lock assemblies. December 7/11 

# PW4ENG 72-817 Page 194 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).(22) Assembler 1: (a) Install blade No. 58 (-02) through the ladder seal and the loading slot. (23) Assembler 2: (a) Install blade No. 19 (-02) through the ladder seal and the loading slot. (24) Turn the blades, locks, and seals around the disk rail to put the cut rung in the ladder seal at the loading slot in the disk. (25) Install one lock assembly each, through the loading slot into the disk rail and hold the lock assembly against the installed blade Nos. 19 and 58. (26) Turn the blades and seals in the disk rail as needed to install the next blade in each seal. (27) Assembler 1: (a) Install blade No. 59 (-03) through the ladder seal and the loading slot. (28) Assembler 2: (a) Install blade No. 20 (-03) through the ladder seal and the loading slot. (29) Make sure that no part of the ladder seal can be seen. (30) Assembler 1 and 2: Move the blades, locks, and ladder seals in the disk rail in the opposite direction until the blade locks line up with the reference ink marks on the outer diameter of the 13th stage disk rail. (31) Tighten and torque the set screws in the four lock and setscrew assemblies. (a) T orque the setscrew to the running torque plus 4 − 8 lb-in (0.452 − 0.904 N.m). Use a PW A 83135 Driver and PW A 83136 Extension for multi-spline setscrews. (32) Check the clearance of the blade lock and the top of the blade platform by one of the methods that follow: (a) Method 1: Measure the height clearance between blade lock and the top of the blade platform, with PW A 78064 Gage. Lock shank must be flush to 0.035 inch (0.889 mm) below blade platform. (b) Method 2: The lock shank top surface must be approximately flush with or below the blade platform. The top of the setscrew can have up to one full thread exposed above or recessed below the face ofthe lock shank. (c) If these limits are not kept, make sure that the lock is correctly assembled in the disk. (33) Blade clearance (called gap) inspection on the both sides ofthe drum. (a) Create a blade gap by forcing the (-01) and/or (-04) blades against the locking blades in each Arc BG. See Figure 12. (b) Use a feeler gage to make sure that the clearance in each arc is 0.005 inch (0.127 mm) or greater
. 1 If the clearance is less than 0.005 inch (0.127 mm), the blades must be removed, re-distributed and assembled again to obtain this clearance. NOTE: Y ou can change the quantity of regular and spacer blades to get the 0.005 inch (0.127 mm) or greater clearance. December 7/11 

# PW4ENG 72-817 Page 195 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).(34) Examine the assembly for foreign objects, damage, and correct assembly
. (35) Install all the necessary protection covers. Part B: Assemble 14th Stage Blades, Locks And Ladder Seals By The Procedure That Follows: 1. Install 14th stage blades in the (debladed) axial compressor rotor assembly with Drum Rotor Disk Assembly, PN 50S813-01 by the procedure that follows. See Figures 11 thru 17. NOTE: There are three part numbers (sets) of blades provided for this stage. Set T ype A, contains most ofthe blades to be installed around the drum. Set T ype B, has notches in the right edge of blade platforms. Set T ype C, has notches in the left edge of blade platforms. When T ypes B and C blades are placed together, clearance is formed for a blade lock. Set T ype A has wide and narrow platforms based on part number so that these blades can be used for fitting. For ease of assembly, blades in this procedure will be referred to as T ypes A, B, and C. See Figure 11. A. Use an approved marking pen to make a "V" mark directly above the two loading slots 180° apart and eight locking slots. Make the marks on the upper rail of the 15th stage disk. These marks will be used for future reference. Refer to temporary marking of parts as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-11-00. See Figure 13. CAUTION: WHEN YOU NEED TO MOVE AND SET THE BLADES IN THE ASSEMBL Y PROCEDURE WHICH FOLLOWS, USE THE PW A 86448 DRIFT
. THE USE OF A DIFFERENT METHOD TO MOVE AND SET THE BLADES CAN CAUSE AIRFOIL DAMAGE. B. Remove the 14th stage blades from their storage rack and put them on a work bench. Find the eight T ype B and eight T ype C blades and move them to one side. See Figure 11. C. Separate the T ype A blades that have a part number with a -04 suf fix. These are called spacer blades. Use an approved marking pen to make an "S" mark on the blade tip on the convex side of the airfoil. D. Install a lock and setscrew assembly into the locking slot to the right of either loading slot on the 14th stage disk. Assemble the radius on the lock into the locking openings. Use the PW A 83135, Driver to tighten the setscrew
. E. Move to the loading slot 180° from the blade lock you installed and install the blades and blade locks into the 14th stage disk rail as follows: F
. Install blades and locks clockwise (right to left), with the blades convex side up as follows: (1) Install one T ype B blade next to the lock. (2) Install one T ype C blade next to the locking blade. (3) Install one lock and set screw assembly next to the locking blade. (4) Install one T ype B blade next to the lock. (5) Install one T ype C blade next to the locking blade. (6) Install one lock and set screw assembly next to the locking blade. (7) Install one T ype B blade next to the lock. G. Continue to install blades and locks clockwise (right to left), with the blades convex side up as follows: (1) Install 27 T ype A wide platform (regular) blades. December 7/11 

# PW4ENG 72-817 Page 196 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).(2) Install two T ype A narrow platform (spacer) blades. (3) Install one T ype C locking blade. (4) Install one lock and setscrew assembly
. (5) Install one T ype B locking blade next to the lock. NOTE: A total of 35 blades and four locks are installed at this time. One regular blade is not installed at this time. H. Install blades and locks counter-clockwise (left to right), with the blades convex side up as follows: (1) Install one T ype C locking blade next to the lock that was installed before. (2) Install one T ype B locking blade next to the locking blade. (3) Install one lock and setscrew assembly next to the locking blade. (4) Install one T ype C locking blade next to the lock. (5) Install one T ype B locking blade next to the locking blade. (6) Install one lock and setscrew assembly next to the locking blade. (7) Install one T ype C locking blade next to the lock. (8) Install one T ype B locking blade next to the locking blade. (9) Install one lock and setscrew assembly next to the locking blade. (10) Install one T ype C locking blade next to the lock. I. Continue to install blades and locks counter-clockwise (left to right), with the blades convex side up as follows: (1) Install 27 T ype A wide platform (regular) blades. (2) Install two T ype A narrow platform (spacer) blades. (3) Install one T ype B locking blade. (4) Install one lock and setscrew assembly next to the locking blade. (5) Install one T ype C locking blade next to the lock. NOTE: A total of 74 blades and eight locks are installed at this time. T wo T ype A wide platform (regular) blades are not installed at this time. J. Make sure that four locking blades and two locks are positioned at each loading slot. K. Position and tighten two locks at the two loading slots only
. L. From the loading slot, move approximately 90° to the assembler’s right and make a clearance between the blades. M. Use an approved marking pen to make an "X" mark on the slanted surface of the drum assembly above the clearance. N. Move the blades tangentially to make the widest possible space between two blades as follows: NOTE: This space will be measured and used to calculate the initial clearance between the blades. December 7/11 

# PW4ENG 72-817 Page 197 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).(1) Use a PW A 85595, Spreaderwith grooves in thejaws against the blade platforms, to apply a tangential force to the blades. (2) Expand the spreaderto get the widest possible distance between the blade platforms. Make sure that each blade platform touches the adjacent blade platform. Ifyou need help to move the blades, you can tap lightly on the base of the airfoil with a PW A 86448, Drift. (3) Pull the blades in a radially outward direction to prevent a circumferential serpentine shape to the blades. (4) If necessary, adjust the spreader to get the widest possible distance between the blade platforms. (5) With the blade spreader in place, use a dial caliper to measure the blade space dimension. (6) Record the clearance dimension as "X1". (7) Remove the blade spreader from the drum assembly
. O. Measure the width ofthe remaining regular blade platform. Record the width ofthe blade platform as "X2". P
. Move to the opposite side ofthe drum (approximately 180° form where the blade clearance was measured and make one clearance between the blades. Q. Use an approved marking pen to make a "Y" mark on the slanted surface of the drum assembly above the clearance location. R. Move the blades tangentially to make the widest possible space between two blades as follows: NOTE: This space will be measured and used to calculate the initial clearance between the blades. (1) Use a PW A 85595, Spreader, with grooves in thejaws against the blade platforms, to apply a tangential force to the blades. (2) Expand the spreaderto get the widest possible distance between the blade platforms. Make sure that each blade platform touches the adjacent blade platform. Ifyou need help to move the blades, you can tap lightly on the base of the airfoil with a PW A 86448, Drift. (3) Pull the blades in a radially outward direction to prevent a circumferential serpentine shape to the blades. (4) If necessary, adjust the spreader to get the widest possible distance between the blade platforms. (5) With the blade spreader in place, use a dial caliper to measure the blade space dimension. Record the dimension as "Y1". (6) Remove the blade spreader from the drum assembly
. S. Measure the width ofthe remaining regular blade platform. Record the width ofthe blade platform as "Y2". T
. Calculate the initial clearance dimension between the blade platforms for each side of the drum (Sides X and Y). Initial Clearance "C" = Blade Space Dim.
— Blade Width December 7/11 

# PW4ENG 72-817 Page 198 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).U. Ifthe Initial Clearance "C" is equal to or greater than 0.030 inch (0.762 mm) and less than or equal to 0.050 inch (1.270 mm) go to blade installation. V
. If the Initial Clearance "C" is less than 0.030 inch (0.762 mm), go to the step below for T ype A Blade Selection, Method A. W
. Ifthe Initial Clearance "C" is more than 0.050 inch (1.270 mm), go to the step below for T ype A Blade Selection Method B. X. T ype A Blade Selection, Method A. (1) Calculate the number ofT ype A wide platform (regular) blades you must replace with T ype A narrow platform (spacer) blades. (2) Calculate Clearance "D". Clearance "D" = Initial Clearance "C" − 0.040 inch, or, Clearance "D" = Initial Clearance "C" − (1.016 mm) (3) Calculate the number of blades to replace "E". "E" = Clearance "D"/0.010 inch, or, "E" = Clearance "D"/(0.254 mm) (4) Round of fthe number of blades "E" to the nearest whole number to get the number of T ype A narrow platform (spacer) blades that you must add. Remove one wide (regular) blade for each narrow platform (spacer) blade that you must add. Example 1: Blade Width = 0.960 inch, Blade Space = 0.931 inch Initial Clearance "C" = Blade Space − Blade Width "C" = 0.931 − 0.960 inch. "C" = −0.029 inch Clearance "D" = Initial Clearance "C" − 0.040 inch "D" = −0.029 − 0.040 inch. "D" = −0.069 inch Calculate the number of blades to replace "E". "E" = "D"/0.010 inch. "E" = −0.069 inch/0.010 inch. "E" = −6.9 Round to the nearestwhole number and drop the minus sign to determine the number of blades to replace. "E" = 7 T ype A narrow platform (spacer) blades Y
. T ype A blade selection, Method B. (1) Calculate the number of T ype A narrow platform (spacer) blades you must replace with T ype A wide platform (regular) blades. (2) Calculate Clearance "D". Clearance "D" = Initial Clearance "C" − 0.040 inch, or, Clearance "D" = Initial Clearance "C" − (1.016 mm) (3) Calculate the number of blades to replace "E". "E" = Clearance "D"/0.010 inch, or, December 7/11 

# PW4ENG 72-817 Page 199 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3)."E" = Clearance "D"/(0.254 mm) (4) Round of fthe number of blades "E" to the nearest whole number to get the number of T ype A wide platform (regular) blades required. Remove one narrow platform (spacer) blade for each wide platform (regular) blade. Example 2: Blade Width = 0.950 inch. Blade Space = 1.015 inches Initial Clearance "C" = Blade Space − Blade Width "C" = 1.015 − 0.950 inch "C" = 0.065 inch Clearance "D" = Initial Clearance "C" − 0.040 inch "D" = 0.065 − 0.040 inch "D" = 0.025 inch Calculate the number of blades to replace "E". "E" = "D"/0.010 inch "E" = 0.025 inch/0.010 inch "E" = 2.5 Round “E” to the nearest whole number and drop the minus sign to determine the number of blades to replace. "E" = 3 T ype A wide platform (regular) blades Z. At the two loading slots, loosen the four set screws in the blade locks that were installed before. NOTE: Y ou can use T ape (P05-341) or equivalent so that the blades will not fall out as they pass the loading slots. AA. Install the remaining T ype A blade(s). (1) Turn the blade and seal assembly counter-clockwise as necessary to get the full length of the blade loading slot open. (2) Install the remaining blades, including any replacement blades for side "X" and side "Y" of the 14th stage disk. NOTE: The full set of blades for this stage should be installed at this time. AB. Turn the blade and seal assembly clockwise to line up the blade locks with the ink marks on the disk at the loading slots. AC. Tighten the four setscrews at the two loading slots. NOTE: Only tighten the four blade locks at the blade loading slots at this time. AD. Check the space between the blades. (1) Locate the "X" mark on the drum above the 15th stage disk. At the "X" mark location, move the blades tangentially to make the widest possible clearance. (2) Pull the blades in a radially outward direction to prevent a circumferential serpentine shape to the blades. Make sure that each blade platform touches the adjacent blade platform and blade lock. (3) Use a feeler gage to make sure that the clearance between the T ype A blade platforms is 0.030 − 0.050 inch (0.76 − 1.27 mm). NOTE: There can only be one clearance on each side ofthe 14th stage disk. December 7/11 

# PW4ENG 72-817 Page 200 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).AE. Repeat the above step to check the space between the blades at the "Y" location on the opposite side of the disk. AF
. If the clearance at the "X" or "Y" side of the disk is less than 0.030 inch (0.762 mm) or greater than 0.050 inch (1.270 mm), the blades must be removed, redistributed, and reassembled to meet the requirement. (1) Y ou can change the quantity ofthe regular and spacer blades to meet the clearance requirement at each location. AG. Loosen the four locks installed at the two blade loading slots. CAUTION: DO NOT MIX THE BLADES FROM THE "X" SIDE OF THE DRUM WITH BLADES FROM THE "Y" SIDE OF THE DRUM OR INCORRECT BLADES PLA TFORM SP ACES CAN OCCUR. AH. Remove the blades from the "X" side of the drum and put them in tray locations 1 thru 38 based on part number suf fix. Remove the blades from the "Y" side of the drum and put them in tray locations 39 thru 76 based on part number suf fix. See T able 18. Ifyou replaced T ype A wide platform (regular) and narrow platform (spacer) blades to get the correct blade clearance space, use T able 18 to put the replacement blades in the correct position as follows: (1) Equally space the T ype Awide platform (regular) and narrow platform (spacer) blades around the disk as best possible. (2) Put the T ype A wide platform (regular) blades 180° apart and the T ype A narrow platform (spacer) blades 180° apart as best possible. AI. Use an approved marking pen to make a mark on each blade to show its sequence number
. The mark should be on the convex side ofthe upper tip corner. T able 18: Blade Location/Blade Part Number Suf fix BLADE LOCA TION NUMBERS IF YOU USE 22 SP ACER BLADES Column 1 Column 2 Column 3 Column 4 Column 5 Column 6 # Blade # Blade # Blade # Blade # Blade # Blade 1 -01 14 -01 27 -01 40 -01 53 -01 66 -01 2 -01 15 -01 28 -01 41 -01 54 -01 67 -01 3 -01 16 -01 29 -01 42 -01 55 -01 68 -01 4 -01 17 -01 30 -01 43 -01 56 -06 69 -01 5 -01 18 -06 31 -01 44 -06 57 -07 70 -06 6 -06 19 -07 32 -06 45 -07 58 -06 71 -07 7 -07 20 -06 33 -07 46 -01 59 -07 72 -01 8 -01 21 -07 34 -01 47 -01 60 -01 73 -01 9 -01 22 -01 35 -01 48 -01 61 -01 74 -01 10 -01 23 -01 36 -01 49 -01 62 -01 75 -01 11 -01 24 -01 37 -01 50 -01 63 -01 76 -01
December 7/11 

# PW4ENG 72-817 Page 201 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).BLADE LOCA TION NUMBERS IF YOU USE 22 SP ACER BLADES 12 -01 25 -01 38 -01 51 -04 64 -04 13 -04 26 -04 39 -01 52 -01 65 -01 NOTE: The blade part number suf fixes in this table are based on T ype A blades that have wide platforms with suf fix -01, and narrow platforms with Suf fix -04, T ype B blades with Suf fix -07, and T ype C blades with Suf fix -06. This table does not show T ype A replacement blades, if any, that was necessary to adjustthe clearance between the blade platforms. See the textfor replacement blade requirements. AJ. Make sure that the center points ofthe two loading slots and the eight locking slots in the disk have the ink marks. Reapply the marks if necessary. AK. Obtain the two ladder seals. (1) Locate the "X" marks by the cut rung on each seal, and put the seals on a work bench with the "X" mark side down. (2) Use an approved marking pen to make a mark on one ofthe seals with the Number 1 and the other seal with the Number 2. NOTE: Ladder seal Number 1 − from the "X" Mark, the slot farthest to the right is the position for blade #1 and the next slot to the left is for blade #2, and so on. The 6th, 7th, 18th, 19th, 20th, 21st, 32nd, and 33rd slots are locking blade slots. The openings (cut rungs) between the 6th and 7th, 18th and 19th, 20th and 21st, and 32nd and 33rd are for blade locks. Ladder seal Number 2 − from the "X" Mark, the slot farthest to the right is the position for blade #39 and the next slot to the left is for blade #40, and so on. The 44th, 45th, 56th, 57th, 58th, 59th, 70th, and 71st slots are locking blade slots. The openings (cut rungs) between the 44th and 45th, 56th and 57th, 58th and 59th, 70th and 71st slots are for blade locks. AL. Install blades with two assemblers (preferred method). CAUTION: HANDLE THE SEALS WITH CARE. DO NOT BEND OR FOLD THE LADDER SEALS SO THE SHAPE BECOMES DEFORMED. (1) In the following steps, you can apply Antigallant Compound, P06-036 or Dry Film Lubricant, P06-041 to the ladder seal, disk rim and rails to help assemble the blades and seals in the disk. (2) Assembler 1: (a) In the following steps, when you install the blades, make sure that the seals are installed between the disk rails. Move the blades, locks, and seal in the disk rail to complete the blade installation procedure. NOTE: The blade installation process will be clockwise (right to left) except for blade Numbers 5 thru 1. (b) Put the seal Number 1 over one loading slot on the disk rim. The "X" mark on the seal up (engine forward) and with the flat surface toward the assembler
.

December 7/11 

# PW4ENG 72-817 Page 202 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).(c) Align the seal circumferentially so that the left cut rung (lock position at the center of the seal) is over one disk lock slot at one location. NOTE: A rung of the seal must be over the loading slot. (d) Adjust the seal as necessary so you can install blade Number 20 through the slot and the disk loading slot. (3) Assembler 2: (a) In the following steps, when you install the blades, make sure that the seals are installed between the disk rails. Move the blades, locks, and seal in the disk rail to complete the blade installation procedure. NOTE: The blade loading process will be clockwise (right to left). (b) Put the seal Number 2 over the remaining loading slot on the disk rim. The "X" mark on the seal up (engine forward) and with the flat surface toward the assembler
. (c) Align the seal circumferentially so that the right cut rung (lock position at the center ofthe seal) is over the lock slot 180° from seal Number 1. NOTE: A rung of the seal must be over the loading slot. (d) Adjust the seal as necessary so you can install blade Number 58 through the slot and the disk loading slot. (4) Assembler 1: (a) Install blade Number 20 (-06) through the ladder seal and the loading slot, convex side up. (5) Assembler 2: (a) Install blade Number 58 (-06) through the ladder seal and the loading slot, convex side up. (6) Turn the blades and seal in the disk rail as needed to put the cut rung in the seal with the loading slot in the disk. (7) Install one lock assembly each, through the loading slot into the disk rail. Hold the lock assembly against the installed blades (Numbers 20 and 58). (8) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (9) Assembler 1: (a) Install blade Number 21 (-07) through the ladder seal and the loading slot, convex side up. (10) Assembler 2: (a) Install blade Number 59 (-07) through the ladder seal and the loading slot, convex side up. (11) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (12) Assembler 1:
December 7/11 

# PW4ENG 72-817 Page 203 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).(a) Install blade Number 22 through the ladder seal and the loading slot, convex side up. (13) Assembler 2: (a) Install blade Number 60 through the ladder seal and the loading slot, convex side up. (14) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (15) Assembler 1: (a) Install blade Number 23 through the ladder seal and the loading slot, convex side up. (16) Assembler 2: (a) Install blade Number 61 through the ladder seal and the loading slot, convex side up. (17) Use the above procedure and continue to install the blades in ascending numerical order until you reach the next set of locking blades and lock assembly slots (cut rung). (18) Turn the blades, locks, and seals in the disk rail as needed to install blade Numbers 32 and Number 70 in the applicable seal. (19) Assembler 1: (a) Install blade Number 32 (-06) through the ladder seal and the loading slot, convex side up. (20) Assembler 2: (a) Install blade Number 70 (-06) through the ladder seal and the loading slot, convex side up. (21) Turn the blades, locks, and seals in the disk rail as needed to get the cut rungs in the seal at the loading slot in the disk. (22) Install one lock assembly each, through the loading slot into the disk rail. Hold the lock assembly against the installed blades (Numbers 32 and 70). (23) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (24) Assembler 1: (a) Install blade Number 33 (-07) through the ladder seal and the loading slot, convex side up. (25) Assembler 2: (a) Install blade Number 71 (-07) through the ladder seal and the loading slot, convex side up. (26) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (27) Assembler 1: (a) Install blade Number 34 through the ladder seal and the loading slot, convex side up. December 7/11 

# PW4ENG 72-817 Page 204 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).(28) Assembler 2: (a) Install blade Number 72 through the ladder seal and the loading slot, convex side up. (29) Use the above procedure and continue to install the blades in ascending numerical order until you install blade Numbers 38 and 76 in the applicable seals. (30) Assembler 1: (a) Use the same blade loading slot and install blade Numbers 39, 40, and so on in seal Number 2 until you reach the set of locking blades and the lock assembly slots (cut rung) is at the disk loading slot. (31) Assembler 2: (a) Use the same slot and install blade Numbers 1, 2, and so on in seal Number 1 until you reach the set of locking blades and the lock assembly slots (cut rung) is at the disk loading slot. (32) Turn the blades, locks, and seals in the disk rail as needed to install blade Numbers 44 and 6 in the applicable seal. (33) Assembler 1: (a) Install blade Number 44 (-06) through the ladder seal and the loading slot, convex side up. (34) Assembler 2: (a) Install blade Number 6 (-06) through the ladder seal and the loading slot, convex side up. (35) Turn the blades, locks, and seals in the disk rail as needed to get the cut rung in the seals at the loading slot in the disk. (36) Install one lock assembly each, through the loading slot into the disk rail. Hold the lock assembly against the installed blades (Numbers 44 and 6). (37) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (38) Assembler 1: (a) Install blade Number 45 (-07) through the ladder seal and the loading slot, convex side up. (39) Assembler 2: (a) Install blade Number 7 (-07) through the ladder seal and the loading slot, convex side up. (40) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (41) Assembler 1: (a) Install blade Number 46 through the ladder seal and the loading slot, convex side up. (42) Assembler 2:
December 7/11 

# PW4ENG 72-817 Page 205 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).(a) Install blade Number 8 through the ladder seal and the loading slot, convex side up. (43) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (44) Assembler 1: (a) Install blade Number 47 through the ladder seal and the loading slot, convex side up. (45) Assembler 2: (a) Install blade Number 9 through the ladder seal and the loading slot, convex side up. (46) Use the above procedure and continue to install the blades in ascending numerical order until you have the next set of locking blades and lock assembly slots (cut rung) at the disk loading slot. (47) Turn the blades, locks, and seals in the disk rail as needed to install blade Numbers 56 and Number 18 in the applicable seal. (48) Assembler 1: (a) Install blade Number 56 (-06) through the ladder seal and the loading slot, convex side up. (49) Assembler 2: (a) Install blade Number 18 (-06) through the ladder seal and the loading slot, convex side up. (50) Turn the blades, locks, and seals in the disk rail as needed to get the cut rung in the seals at the loading slot in the disk. (51) Install one lock assembly each, through the loading slot into the disk rail. Hold the lock assembly against the installed blades (Numbers 56 and 18). (52) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (53) Assembler 1: (a) Install blade Number 57 (-07) through the ladder seal and the loading slot, convex side up. (54) Assembler 2: (a) Install blade Number 19 (-07) through the ladder seal and the loading slot, convex side up. (55) Make sure that no part of the ladder seal can be seen. (56) Turn the blades, locks, and seals in the opposite direction until the blade locks line up with the reference ink marks on the outer diameter ofthe 14th stage disk rail. AM. If necessary, remove tape. AN. Tighten and torque the set screws in the eight lock and setscrew assemblies. (1) T orque the setscrew to the running torque plus 4 − 8 lb-in (0.452 − 0.904 N.m). Use a PW A 83135, Driver and PW A 83136, Extension for multi-spline setscrews. December 7/11 

# PW4ENG 72-817 Page 206 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).AO. Check the clearance of the blade lock and the top of the blade platform by one of the methods that follow: (1) Method 1: Measure the height clearance between blade lock and the top ofthe blade platform, with PW A 78064, Gage. Lock shank must be flush to 0.035 inch (0.889 mm) below blade platform. (2) Method 2: The lock shank top surface must be approximately flush with or below the blade platform. The top ofthe setscrew can have up to one full thread exposed above or recessed below the face of the lock shank. (3) Ifthese limits are not kept, check the lock for correct assembly in the disk. AP
. Blade clearance (called gap) inspection on the "X" and "Y" sides ofthe drum. (1) Create a blade gap by forcing the (-01) and/or (-04) blades against the locking blades in each arc. (2) There are three gaps to check in the "X" side, and three in the "Y" side ofthe drum. See Arcs DG and DH in Figure 13. (3) Use a feeler gage to make sure that the clearance in each ofthe six arcs is 0.009 inch (0.229 mm) or greater
. (a) Ifthe clearance is less than 0.009 inch (0.229 mm), you must remove the blades, redistribute and assemble the blades again to get in this requirement. NOTE: Y ou can also change the quantity of regular and spacer blades to get the 0.009 inch (0.229 mm) dimension. AQ. Examine the assembly for foreign objects, damage, and correct assembly
. AR. Install all the necessary protection covers. Part C: Assemble 15th Stage Blades, Locks And Ladder Seals By The Procedure That Follows: 1. Install 15th stage blades in the (debladed) axial compressor rotor assembly with Drum Rotor Assembly, PN 50S813-01 by the procedure that follows. See Figures 11 thru 17. NOTE: There are three part numbers (sets) of blades provided for this stage. Set T ype A, contains most ofthe blades to be installed around the drum. Set T ype B, has notches in the right edge of blade platforms. Set T ype C, has notches in the left edge of blade platforms. When T ypes B and C blades are placed together, clearance is formed for a blade lock. Set T ype A has wide and narrow platforms based on part number so that these blades can be used for fitting. For ease of assembly, blades in this procedure will be referred to as T ypes A, B, and C. See Figure 11. A. Use an approved marking pen to make a "V" mark directly above the two loading slots 180° apart and eight locking slots. Make the marks on the upper rail of the 15th stage disk. These marks will be used for future reference. Refer to temporary marking of parts as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-11-00. See Figure 14. CAUTION: WHEN YOU NEED TO MOVE AND SET THE BLADES IN THE ASSEMBL Y PROCEDURE WHICH FOLLOWS, USE THE PW A 86448 DRIFT
. THE USE OF A DIFFERENT METHOD TO MOVE AND SET THE BLADES CAN CAUSE AIRFOIL DAMAGE. B. Remove the 15th stage blades from their storage rack and put them on a work bench. Find the eight T ype B and eight T ype C blades and move them to one side. See Figure 11. December 7/11 

# PW4ENG 72-817 Page 207 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).C. Separate the T ype A blades that have a part number with a -04 suf fix. These are called spacer blades. Use an approved marking pen to make an "S" mark on the blade tip on the convex side of the airfoil. D. Install a lock and setscrew assembly into the locking slot to the right of either loading slot on the 15th stage disk (lower disk). Assemble the radius on the lock into the locking openings. Use the PW A 83135, Driver and PW A 83136, Extension to tighten the setscrew
. E. Move to the loading slot 180° from the blade lock you installed and install the blades and blade locks into the 15th stage disk rail as follows: F
. Install blades and locks in a clockwise (right to left) with the blades convex side up as follows: (1) Install one T ype B blade next to the lock. (2) Install one T ype C blade next to the locking blade. (3) Install one lock and set screw assembly next to the locking blade. (4) Install one T ype B blade next to the lock. (5) Install one T ype C blade next to the locking blade. (6) Install one lock and set screw assembly next to the locking blade. (7) Install one T ype B blade next to the lock. G. Continue to install blades and locks in a clockwise (right to left) with the blades convex side up as follows: (1) Install 20 T ype A wide platform (regular) blades. (2) Install six T ype A narrow platform (spacer) blades. (3) Install one T ype C locking blade. (4) Install one lock and setscrew assembly
. (5) Install one T ype B locking blade next to the lock. NOTE: A total of 33 blades and four locks are installed at this time. One regular blade is not installed at this time. H. Install blades and locks in a counter-clockwise (left to right) with the blades convex side up as follows: (1) Install one T ype C locking blade next to the lock that was installed before. (2) Install one T ype B locking blade next to the locking blade. (3) Install one lock and setscrew assembly
. (4) Install one T ype C locking blade next to the lock. (5) Install one T ype B locking blade next to the locking blade. (6) Install one lock and setscrew assembly
. (7) Install one T ype C locking blade next to the lock. (8) Install one T ype B locking blade next to the locking blade. (9) Install one lock and setscrew assembly
. (10) Install one T ype C locking blade next to the lock. December 7/11 

# PW4ENG 72-817 Page 208 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).I. Continue to install blades and locks, counter-clockwise (left to right), with the blades convex side up as follows: (1) Install 20 T ype A wide platform (regular) blades. (2) Install six T ype A narrow platform (spacer) blades. (3) Install one T ype B locking blade. (4) Install one lock and setscrew assembly
. (5) Install one T ype C locking blade. NOTE: A total of 68 blades and eight locks are installed at this time. T wo T ype A wide platform (regular) blades are not installed at this time. J. Make sure that four locking blades and two locks are positioned at each loading slot. K. Position and tighten two locks at the two loading slots only
. L. From the loading slot, move approximately 90° to the assembler’s right and make a clearance between the blades. M. Use an approved marking pen to make an "X" mark on the slanted surface of the drum assembly above the clearance. N. Move the blades tangentially to make the widest possible space between two blades. This space will be measured and used to calculate the specified clearance gap between the blades. See Figure 17, Sheet 3. (1) Use a PW A 85595, Spreader, with grooves in thejaws against the blade platforms, to apply a tangential force to the blades. (2) Expand the spreaderto get the widest possible distance between the blade platforms. Make sure that each blade platform touches the adjacent blade platform. Ifyou need help to move the blades, you can tap lightly on the base of the airfoil with a PW A 86448, Drift. (3) Pull the blades in a radially outward direction to prevent a circumferential serpentine shape to the blades. (4) If necessary, adjust the spreader to get the widest possible distance between the blade platforms. (5) With the blade spreader in place, use a dial caliper to measure the blade space dimension. (6) Record the clearance dimension as "X1". (7) Remove the blade spreader from the drum assembly
. O. Measure the width of the remaining regular blade platform. Record the width of the blade as "X2". P
. Move to the opposite side ofthe drum (approximately 180° form where the blade clearance was measured and make one clearance between the blades. Q. Use an approved marking pen to make a "Y" mark on the slanted surface of the drum assembly above the clearance location.

December 7/11 

# PW4ENG 72-817 Page 209 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).R. Move the blades tangentially to make the widest possible space between two blades as follows: NOTE: This space will be measured and used to calculate the initial clearance between the blades. (1) Use a PW A 85595 Spreader, with grooves in thejaws against the blade platforms, to apply a tangential force to the blades. (2) Expand the spreaderto get the widest possible distance between the blade platforms. Make sure that each blade platform touches the adjacent blade platform. If you need help to move the blades, you can tap lightly on the base of the airfoil with a PW A 86448 Drift. (3) Pull the blades in a radially outward direction to prevent a circumferential serpentine shape to the blades. (4) If necessary, adjust the spreader to get the widest possible distance between the blade platforms. (5) With the blade spreader in place, use a dial caliper to measure the blade space dimension. Record the dimension as "Y1". (6) Remove the blade spreader from the drum assembly
. S. Measure the width of the remaining regular blade platform. Record the width of the blade as "Y2". T
. Calculate the initial clearance dimension between the blade platforms for the "X" and "Y" sides of the drum. Initial Clearance "C" = Blade Space Dim. − Blade Width U. Ifthe Initial Clearance "C" is equal to or greater than 0.060 inch (1.524 mm) and less than or equal to 0.080 inch (2.032 mm) go to blade installation. V
. If the Initial Clearance "C" is less than 0.060 inch (1.524 mm), go to T ype A blade replacement selection Method A. W
. If the Initial Clearance "C" is more than 0.080 inch (2.032 mm), go to T ype A blade replacement selection Method B. X. T ype A Blade Selection, Method A. (1) Calculate the number ofT ype A wide platform (regular) blades you must replace with T ype A narrow platform (spacer) blades. (2) Calculate Clearance "D". Clearance "D" = Initial Clearance "C" − 0.070 inch or, Clearance "D" = Initial Clearance "C" − (1.778 mm) (3) Calculate the number of blades to replace "E". "E" = Clearance "D"/0.010 inch or, "E" = Clearance "D"/(0.254 mm) (4) Round of fthe number of blades "E" to the nearest whole number to get the number of T ype A narrow platform (spacer) blades that you must add. Remove one wide (regular) blade for each narrow platform (spacer) blade that you must add. Example 1: December 7/11 

# PW4ENG 72-817 Page 210 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).Blade Width = 0.960 inch. Blade Space = 0.931 inch Initial Clearance "C" = Blade Space − Blade Width "C" = 0.931 − 0.960 inch. "C" = −0.029 inch Clearance "D" = Initial Clearance "C" − 0.070 inch "D" = −0.029 − 0.070 inch. "D" = −0.099 inch Calculate the number of blades to replace "E". "E" = "D"/0.010 inch. "E" = −0.099 inch/0.010 inch. "E" = −9.9 Round "E" to the nearest whole number and drop the minus sign to determine the number ofwide platform (regular) blades to replace. "E" = 10 T ype A narrow platform (spacer) blades Y
. T ype A Blade Selection, Method B. (1) Calculate the number of T ype A narrow platform (spacer) blades you must replace with T ype A wide platform (regular) blades. (2) Calculate Clearance "D". Clearance "D" = Initial Clearance "C" − 0.070 inch, or, Clearance "D" = Initial Clearance "C" − (1.778 mm) (3) Calculate the number of blades to replace "E". "E" = "D"/0.010 inch or, "E" = "D"/(0.254 mm) (4) Round of fthe number of blades E to the nearest whole number to get the number of T ype Awide platform (regular) blades required. Remove one narrow platform (spacer) blade for each wide platform (regular) blade that you must add. Example 2: Blade Width = 0.920 inch. Blade Space = 1.001 inches Initial Clearance "C" = Blade Space − Blade Width "C" = 1.001 − 0.920 inch. "C" = 0.081 inch Clearance "D" = Initial Clearance "C" − 0.070 inch "D" = 0.081 − 0.070 inch. "D" = 0.011 inch Calculate the number of blades to replace "E". "E" = "D"/0.010 inch. "E" = 0.011 inch/0.010 inch. "E" = 1.1 Round "E" to the nearestwhole numberto determine the number of blades to replace. "E" = 1 T ype A wide platform (regular) blade Z. At the two loading slots, loosen the four set screws in the blade locks that were installed before. NOTE: Y ou can use T ape, P05-341 or equivalent at the opposite loading slot so that the blades will not fall out. AA. Install the remaining T ype A blade(s). December 7/11 

# PW4ENG 72-817 Page 211 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).(1) Turn the full blade set counter-clockwise as necessary to get the full length of the blade loading slot open. (2) Install the remaining blades, including any replacement blades for side "X" and side "Y" of the 15th stage disk. NOTE: The full set of blades for this stage should be installed at this time. AB. Turn the full blade set clockwise until the blade locks line up with the ink marks on the disk at the loading slots. AC. Tighten the four setscrews at the two loading slots. NOTE: Only tighten the four blade locks at the blade loading slots. AD. Check the space between the blades. (1) Locate the "X" mark on the drum above the 15th stage disk. At the "X" mark location, move the blades tangentially to make the widest possible clearance. (2) Pull the blades in a radially outward direction to prevent a circumferential serpentine shape to the blades. Make sure that each blade platform touches the adjacent blade platform and blade lock. NOTE: There can only be one clearance on each side ofthe 15th stage disk. (3) Use a feelergage to make sure thatthe clearance between the T ype A blade platforms is 0.060 − 0.080 inch (1.52 − 2.03 mm). Ifthe clearance is not in the limits, you must remove and redistribute the blades and calculate the clearance dimension again. NOTE: Y ou can change the quantity of regular and spacer blades to get the 0.060 − 0.080 inch (1.52 − 2.03 mm) clearance. AE. Repeat the above step to check the space between the blades at the "Y" location on the opposite side of the disk. AF
. The total clearance for both sides is 0.120 − 0.160 inch (3.05 − 4.06 mm). AG. If the clearance at the "X" or "Y" side of the disk is less than 0.060 inch (1.524 mm) or greater than 0.080 inch (2.032 mm), the blades must be removed, redistributed, and reassembled to get the requirement. NOTE: Y ou can change the quantity ofthe regularand spacer blades to getthe clearance requirement at each location. AH. Loosen the four locks installed at the two blade loading slots. CAUTION: DO NOT MIX THE BLADES FROM THE "X" SIDE OF THE DRUM WITH BLADES FROM THE "Y" SIDE OF THE DRUM OR INCORRECT BLADE PLA TFORM SP ACES CAN OCCUR. AI. Remove the blades from the "X" side ofthe drum and put them in tray locations 1 through 35 based on part number suf fix. Remove the blades from the "Y" side of the drum and put them in tray locations 36 through 70 based on part number suf fix. See T able 19. If you replaced T ype A wide platform (regular) and narrow platform (spacer) blades to get the correct blade clearance space, use T able 19 to put the replacement blades in the correct position as follows: (1) Equally space the wide platform (regular) and narrow platform (spacer) blades around the disk as best possible.
December 7/11 

# PW4ENG 72-817 Page 212 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).(2) Put the T ype A wide platform (regular) blades 180° apart and the T ype A narrow platform (spacer) blades 180° apart as best possible. AJ. Use an approved marking pen to make a mark on each blade to show its sequence number
. The mark should be on the convex side ofthe upper tip corner. T able 19: Blade Location/Blade Part Number Suf fix Column 1 Column 2 Column 3 Column 4 Column 5 Column 6 # Blade # Blade # Blade # Blade # Blade # Blade 1 -04 14 -01 27 -01 40 -01 53 -07 66 -07 2 -01 15 -01 28 -01 41 -06 54 -06 67 -01 3 -01 16 -01 29 -01 42 -07 55 -07 68 -01 4 -01 17 -06 30 -06 43 -01 56 -01 69 -01 5 -01 18 -07 31 -07 44 -01 57 -01 70 -04 6 -06 19 -06 32 -01 45 -01 58 -01 7 -07 20 -07 33 -01 46 -01 59 -04 8 -01 21 -01 34 -01 47 -04 60 -04 9 -01 22 -01 35 -04 48 -04 61 -01 10 -01 23 -01 36 -04 49 -01 62 -01 11 -01 24 -04 37 -01 50 -01 63 -01 12 -04 25 -04 38 -01 51 -01 64 -01 13 -04 26 -01 39 -01 52 -06 65 -06 NOTE: The blade part number suf fixes in this table are based on T ype A blades that have wide platforms with Suf fix -01 and narrow platforms with Suf fix -04, T ype B blades with Suf fix -07, and T ype C blades with Suf fix -06. This table does not show T ype A replacement blades, if any, that was necessary to adjustthe clearance between the blade platforms. See the textfor replacement blade requirements. AK. Make sure that the center points ofthe two loading slots and the eight locking slots in the disk have the ink marks. Reapply the marks if necessary. AL. Obtain the two ladder seals. (1) Locate the "X" marks by the cut rung on each seal, and put the seals on a work bench with the "X" mark side down. (2) Use an approved marking pen to make a mark on one ofthe seals with the Number 1 and the other seal with the Number 2. NOTE: Ladderseal Number 1 − from the "X" Mark, the slotfarthest to the right is the position for blade #1 and the next slot to the left is for blade #2, and so on. The 6th, 7th, 17th, 18th, 19th, 20th, 30th, and 31st slots are locking blade slots. The openings (cut rungs) between the 6th and 7th, 17th and 18th, 19th and 20th, 30th and 31st are for blade locks. December 7/11 

# PW4ENG 72-817 Page 213 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).Ladder seal Number 2 − from the "X" Mark, the slot farthest to the right is the position for blade #36 and the next slot to the left is for blade #37, and so on. The 41st, 42nd, 52nd, 53rd, 54th, 55th, 65th, and 66th slots are locking blade slots. The openings (cut rungs) between the 41st and 42nd, 52nd and 53rd, 54th and 55th, 65th and 66th slots are for blade locks. AM. Install blades with two assemblers (preferred method). CAUTION: HANDLE THE SEALS WITH CARE. DO NOT BEND OR FOLD THE LADDER SEALS SO THE SHAPE BECOMES DEFORMED. (1) In the following steps, you can apply Antigallant Compound, P06-036 or Dry Film Lubricant, P06-041 to the ladder seal, disk rim and rails to help assemble the blades and seals in the disk. (2) Assembler 1: (a) In the following steps, when you install the blades, make sure that the seals are installed between the disk rails. Move the blades, locks, and seal in the disk rail to complete the blade installation procedure. NOTE: The blade installation process will be clockwise (left to right) except for blade Numbers 5 thru 1. (b) Put the ladder seal Number 1 over one loading slot on the disk rim. The "X" mark on the seal up (engine forward) and with the flat surface toward the assembler
. (c) Align the seal circumferentially so that the right cut rung (lock position at the center ofthe seal) is over one disk lock slot at one location. NOTE: A rung of the seal must be over the loading slot. (d) Adjust the seal as necessary so you can install blade Number 19 through the slot and the disk loading slot. (3) Assembler 2: (a) In the following steps, when you install the blades, make sure that the seals are installed between the disk rails. Move the blades, locks, and seal in the disk rail to complete the blade installation procedure. NOTE: The blade loading process will be clockwise (left to right). (b) Put the ladder seal Number 2 over the remaining loading slot on the disk rim. The "X" mark on the seal up (engine forward) and with the flat surface toward the assembler
. (c) Align the seal circumferentially so that the right cut rung (lock position at the center ofthe seal) is over the lock slot 180° from ladder seal Number 1. NOTE: A rung of the seal must be over the loading slot. (d) Adjust the seal as necessary so you can install blade Number 54 through the slot and the disk loading slot. (4) Assembler 1: (a) Install blade Number 19 (-06) through the ladder seal and the loading slot, convex side up. (5) Assembler 2: December 7/11 

# PW4ENG 72-817 Page 214 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).(a) Install blade Number 54 (-06) through the ladder seal and the loading slot, convex side up. (6) Turn the blades and seal in the disk rail as needed to put the cut rung in the seal with the loading slot in the disk. (7) Install one lock assembly each, through the loading slot into the disk rail. Hold the lock assembly against the installed blades (Numbers 19 and 54). (8) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (9) Assembler 1: (a) Install blade Number 20 (-07) through the ladder seal and the loading slot, convex side up. (10) Assembler 2: (a) Install blade Number 55 (-07) through the ladder seal and the loading slot, convex side up. (11) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (12) Assembler 1: (a) Install blade Number 21 through the ladder seal and the loading slot, convex side up. (13) Assembler 2: (a) Install blade Number 57 through the ladder seal and the loading slot, convex side up. (14) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (15) Assembler 1: (a) Install blade Number 22 through the ladder seal and the loading slot, convex side up. (16) Assembler 2: (a) Install blade Number 58 through the ladder seal and the loading slot, convex side up. (17) Use the above procedure and continue to install the blades in ascending numerical order until you reach the next set of locking blades and lock assembly slots (cut rung). (18) Turn the blades, locks, and seals in the disk rail as needed to install blade Numbers 30 and Number 65 in the applicable seal. (19) Assembler 1: (a) Install blade Number 30 (-06) through the ladder seal and the loading slot, convex side up. (20) Assembler 2: (a) Install blade Number 65 through the ladder seal and the loading slot, convex side up. December 7/11 

# PW4ENG 72-817 Page 215 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).(21) Turn the blades, locks, and seals in the disk rail as needed to get the cut rungs in the seal at the loading slot in the disk. (22) Install one lock assembly each, through the loading slot into the disk rail. Hold the lock assembly against the installed blades (Numbers 30 and 65). (23) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (24) Assembler 1: (a) Install blade Number 31 (-07) through the ladder seal and the loading slot, convex side up. (25) Assembler 2: (a) Install blade Number 66 (-07) through the ladder seal and the loading slot, convex side up. (26) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (27) Assembler 1: (a) Install blade Number 32 through the ladder seal and the loading slot, convex side up. (28) Assembler 2: (a) Install blade Number 67 through the ladder seal and the loading slot, convex side up. (29) Use the above procedure and continue to install the blades in ascending numerical order until you install blade Numbers 35 and 70 in the applicable seals. (30) Assembler 1: (a) Use the same slot and install blade Numbers 36, 37, and so on in ladder seal Number 2 until you reach the set of locking blades and the lock assembly slots (cut rung) is at the disk loading slot. (31) Assembler 2: (a) Use the same slot and install blade Numbers 1, 2, and so on in ladder seal Number 1 until you reach the set of locking blades and the lock assembly slots (cut rung) is at the disk loading slot. (32) Turn the blades, locks, and seals in the disk rail as needed to install blade Numbers 41 and 6 in the applicable seal. (33) Assembler 1: (a) Install blade Number 41 (-06) through the ladder seal and the loading slot, convex side up. (34) Assembler 2: (a) Install blade Number 6 (-06) through the ladder seal and the loading slot, convex side up. (35) Turn the blades, locks, and seals in the disk rail as needed to get the cut rung in the seals at the loading slot in the disk. December 7/11 

# PW4ENG 72-817 Page 216 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).(36) Install one lock assembly each, through the loading slot into the disk rail. Hold the lock assembly against the installed blades (Numbers 41 and 6). (37) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (38) Assembler 1: (a) Install blade Number 42 (-07) through the ladder seal and the loading slot, convex side up. (39) Assembler 2: (a) Install blade Number 7 (-07) through the ladder seal and the loading slot, convex side up. (40) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (41) Assembler 1: (a) Install blade Number 43 through the ladder seal and the loading slot, convex side up. (42) Assembler 2: (a) Install blade Number 8 through the ladder seal and the loading slot, convex side up. (43) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (44) Assembler 1: (a) Install blade Number 44 through the ladder seal and the loading slot, convex side up. (45) Assembler 2: (a) Install blade Number 9 through the ladder seal and the loading slot, convex side up. (46) Use the above procedure and continue to install the blades in ascending numerical order until you have the next set of locking blades and lock assembly slots (cut rung) at the disk loading slot. (47) Turn the blades, locks, and seals in the disk rail as needed to install blade Numbers 52 and Number 17 in the applicable seal. (48) Assembler 1: (a) Install blade Number 52 (-06) through the ladder seal and the loading slot, convex side up. (49) Assembler 2: (a) Install blade Number 17 (-06) through the ladder seal and the loading slot, convex side up. (50) Turn the blades, locks, and seals in the disk rail as needed to get the cut rung in the seals at the loading slot in the disk.
December 7/11 

# PW4ENG 72-817 Page 217 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).(51) Install one lock assembly each, through the loading slot into the disk rail. Hold the lock assembly against the installed blades (Numbers 52 and 17). (52) Turn the blades, locks, and seals in the disk rail as needed to install the next blade in each seal. (53) Assembler 1: (a) Install blade Number 53 (-07) through the ladder seal and the loading slot, convex side up. (54) Assembler 2: (a) Install blade Number 18 (-07) through the ladder seal and the loading slot, convex side up. (55) Make sure that no part of the ladder seal can be seen. (56) Assembler 1 and 2: Move the blades, locks, and seals in the disk rail in the opposite direction until the blade locks line up with the reference ink marks on the outer diameter of the 15th stage disk rail. AN. If necessary, remove tape. AO. Tighten and torque the set screws in the eight lock and setscrew assemblies. (1) T orque the setscrew to the running torque plus 4 − 8 lb-in (0.452 − 0.904 N.m). Use a PW A 83135 Driver, and PW A 83136, Extension for multi-spline setscrews. AP
. Check the clearance of the blade lock and the top of the blade platform by one of the methods that follow: (1) Method 1: Measure the height clearance between blade lock and the top ofthe blade platform, with PW A 78064, Gage. Lock shank must be flush to 0.035 inch (0.889 mm) below blade platform. (2) Method 2: The lock shank top surface must be approximately flush with or below the blade platform. The top ofthe setscrew can have up to one full thread exposed above or recessed below the face of the lock shank. (3) Ifthese limits are not kept, check the lock for correct assembly in the disk. AQ. Blade clearance (to be referred as gap) inspection on the "X" and "Y" sides ofthe drum. (1) Create a blade gap by forcing the (-01) and/or (-04) blades against the locking blades in each arc. (2) There are three gaps to check in the "X" side, and three in the "Y" side ofthe drum. See Arcs DG and DH in Figure 14. (3) Use a feeler gage to make sure that the clearance in each ofthe six arcs is 0.019 inch (0.483 mm) or greater
. (a) If the clearance is less than 0.019 inch (0.483 mm), you must remove, redistribute, and assemble the blades again to get in this clearance. NOTE: Y ou can also change the quantity of regular and spacer blades to get the 0.019 inch (0.483 mm) requirement. AR. Examine the assembly for foreign objects, damage, and correct assembly
. AS. Install all the necessary protection covers. December 7/11 

# PW4ENG 72-817 Page 218 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).BLADE IDENTIFICA TION FIGURE 11
December 7/11 

# PW4ENG 72-817 Page 219 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).SCHEMA TIC FRONT VIEW OF 13TH ST AGE BLADE AND LOCK INST ALLA TION (DRUM ROTOR (REAR) DISK, PN 50S813-01) FIGURE 12 December 7/11 

# PW4ENG 72-817 Page 220 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).1. T ype B Blades 2. T ype C Blades 3. Ladder Seals 4. T ype A Blades 5. Lock And Setscrew Assembly KEY TO FIGURE 12

December 7/11 

# PW4ENG 72-817 Page 221 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).SCHEMA TIC FRONT VIEW OF 14TH ST AGE BLADE AND LOCK INST ALLA TION (DRUM ROTOR (REAR) DISK, PN 50S813-01) FIGURE 13 December 7/11 

# PW4ENG 72-817 Page 222 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).1. Ladder Seals 2. T ype C Blades 3. T ype B Blades 4. T ype A Blades 5. Lock And Setscrew Assembly KEY TO FIGURE 13

December 7/11 

# PW4ENG 72-817 Page 223 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).SCHEMA TIC FRONT VIEW OF 15TH ST AGE BLADE AND LOCK INST ALLA TION (DRUM ROTOR (REAR) DISK, PN 50S813-01) FIGURE 14 December 7/11 

# PW4ENG 72-817 Page 224 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).1. Ladder Seals 2. T ype C Blades 3. T ype B Blades 4. T ype A Blades 5. Lock And Setscrew Assembly KEY TO FIGURE 14

December 7/11 

# PW4ENG 72-817 Page 225 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).LADDER SEALS INST ALLA TION (DRUM ROTOR (REAR) DISK PN 50S813-01) FIGURE 15
December 7/11 

# PW4ENG 72-817 Page 226 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).BLADE AND LOCK INST ALLA TION FIGURE 16, SHEET 1
December 7/11 

# PW4ENG 72-817 Page 227 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).BLADE AND LOCK INST ALLA TION FIGURE 16, SHEET 2
December 7/11 

# PW4ENG 72-817 Page 228 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).BLADE AND LOCK INST ALLA TION FIGURE 16, SHEET 3
December 7/11 

# PW4ENG 72-817 Page 229 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).GAP MEASUREMENT AND LADDER SEAL INST ALLA TION FIGURE 17
December 7/11 

# PW4ENG 72-817 Page 230 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page. Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).