# SER VICE BULLETIN REVISION NOTICE
ENGINE
— INTRODUCTION OF THE ADV ANT AGE PERFORMANCE UPGRADE (APU) CONFIGURA TION, TO IMPROVE HIGH PRESSURE TURBINE (HPT) PERFORMANCE AND DURABILITY Turbojet Engine Service Bulletin No. PW4ENG 72-795 Revision No. 2 dated April 5, 201 1. Revision H istory Original Issue August 7, 2009 Revision 1 dated September 30, 2010 Revision 2 dated April 5, 201 1 Reason f or the Revision T o add “NOTE: Keep HPT Cooling Duct Assembly, PN 50K198-01 with an engine that has a T alon II burner.” to the Interchangeability and Accomplishment Instructions. T o add “NOTE: 1st Stage Hub Assembly, PN 55L1 1 1 is a part of the 2nd stage set.” to the Interchangeability
. Ef fect of Revision on Prior Compl iance None. Th is is a Complete Revision (Not Appl icable to the SG M L version) The contents are in accordance with the list of ef fective pages. All pages have the current revision number
. T echnical changes are marked with black bars. MOD EL APPLI CA TI ON PW4052(-3), PW4056(-3), PW4060(-3), PW4062(-3), PW4062A(-3), PW4152(-3), PW4156A(-3), PW4158(-3), PW4460(-3), PW4462(-3) BU LLETI N I SSU E SEQU ENCE PW4000 Series 72-795 Page Revision No. Date 1 thru 95 2 April 5/1 1 A copy of this Revision Notice and any future revision notices must be filed as a permanent record with your copy of the subject bulletin.

P&W Distri bution Code 2616, 2618, 2619 

# PW4ENG 72-795 Page 1 of 1 Printed in United States of America

# SER VICE BULLETIN

ENGINE
— INTRODUCTION OF THE ADV ANT AGE PERFORMANCE UPGRADE (APU) CONFIGURA TION, TO IMPROVE HIGH PRESSURE TURBINE (HPT) PERFORMANCE AND DURABILITY MODEL APPLI CA TI ON PW4052(-3), PW4056(-3), PW4060(-3), PW4062(-3), PW4062A(-3), PW4152(-3), PW4156A(-3), PW4158(-3), PW4460(-3), PW4462(-3) BU LLETI N I SSU E SEQU ENCE PW4000 Series 72-795 A T A N U M BE R 72-50-00

UTC/P&W PROPRI ET AR Y I N FORMA TI ON 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
. Compl iance Category 8 P&W Distri bution Code 2616, 2618, 2619 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 1 of 95 Printed in United States of AmericaSu mmary The purpose of this Service Bulletin is to introduce a High Pressure Turbine (HPT), Advantage Performance Upgrade (APU) configuration for the PW4000-94(-3) engine models. The new APU has hardware that is common to the PW4000-100 Advantage70TM series engine models to provide improved engine performance and durability for extended time on wing and improved Thrust Specific Fuel Consumption (TSFC). This APU addresses known durability and performance deterioration problems associated with turbine blades and outer duct segments such as 1st stage duct segment coating spallation and 2nd stage blade stretch and fracture. The APU also requires the installation of an Advantage70TM 1st stage hub to maintain the HPT system balance and major rotating part life requirements. Plan n i ng I nf ormation Ef fectivity Data Eng i ne Models Appl icable PW4056(-3) Engine Serial Nos. P719991 thru P719996 PW4056(-3) Engine Serial Nos. P727386 thru P727388 PW4056(-3) Engine Serial Nos. P727432 thru P727435 PW4056(-3) Engine Serial Nos. P727437 thru P727441 PW4056(-3) Engine Serial Nos. P727443 thru P727460 PW4056(-3) Engine Serial Nos. P727462 thru P727521 PW4056(-3) Engine Serial Nos. P727523 thru P727568 PW4060(-3), PW4062(-3) Engine Serial Nos. P724706 thru P724751 PW4052(-3), PW4056(-3), PW4060(-3), PW4062(-3) Engine Serial Nos. P727570 thru P728000 PW4052(-3), PW4056(-3), PW4060(-3), PW4062(-3), PW4062A(-3) Engine Serial Nos. P729001 thru P729264* PW4152(-3) Engine Serial Nos. P724930 thru P724944* PW4156A(-3) Engine Serial Nos. P724569 thru P724578* PW4158(-3) Engine Serial Nos. P724877 thru P724879 PW4158(-3) Engine Serial Nos. P724886 thru P724892


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 2 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.PW4158(-3) Engine Serial No. P724895 PW4158(-3) Engine Serial Nos. P724898 thru P724899 PW4158(-3) Engine Serial Nos. P728502 thru P728507 PW4158(-3) Engine Serial No. P728510 PW4158(-3) Engine Serial Nos. P728512 thru P728600 PW4158(-3) Engine Serial Nos. P729800 thru P729867* PW4462(-3) Engine Serial Nos. P733702 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 72-795 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 Airframer from F AA337 forms to the Service Bulletin PW4ENG 72-795 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. Concu rrent Req u i rements There are no concurrent requirements. Reason 1. Problem: The PW4000-94(-3) series engine models do not incorporate the latest HPT technology
. 2. Cause: Not applicable. 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 3 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.3. Solution: Provide an APU configuration that has the latest HPT technology to improve performance and durability
. Descri ption Do a modification to incorporate the APU configuration. Compl iance 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 of this Service Bulletin agree with the applicable Federal A viation Regulations and are F AA-Approved for the engine model(s) given. Man power No more man-hours are necessary when done at complete disassembly/assembly
. Weig ht Data + 3.20 Pound(s) (+ 1.45 kg). Electrical Load Data Not Applicable. Sof tware Accompl ish ment Su mmary 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 Of A PW4460 Or PW4462 T o A PW4460(-3) Or PW4462(-3). Issue Sequence 72-490, PW4000 Series. 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 4 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.10. Service Bulletin No. PW4ENG 72-504; Engine
— Conversion Of A PW4052, PW4056, PW4060, T o A PW4052(-3), PW4056(-3), Or PW4060(-3). Issue Sequence 72-504, PW4000 Series. 1 1. Service Bulletin No. PW4ENG 72-512; Engine
— Blade Set, First Stage LPC
— Allow Installation Of The FB2B First Stage LPC Blade Sets In Phase 3 Engines T o Create The (-3B) Engine Configuration. Issue Sequence 72-512, PW4000 Series. 12. Service Bulletin No. PW4ENG 72-572; Engine
— Conversion Of A PW4152, PW4156A, PW4158 Engine T o A PW4152(-3), PW4156A(-3), Or PW4158(-3) Engine. Issue Sequence 72-572, PW4000 Series. 13. 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. 14. Service Bulletin No. PW4ENG 73-150; Engine Fuel And Control
— Plug, EEC Programming
— Installation Of T o Create The (-3A) Engine Configuration. Issue Sequence 73-150, PW4000 Series. 15. Service Bulletin No. PW4ENG 72-662; Engine
— Blade, First Stage High Pressure Turbine (HPT)
— Incorporation Of Additional Platform And Airfoil Cooling Which Requires A New First Stage HPT Cooling Duct. Issue Sequence 72-662, PW4000 Series. 16. Service Bulletin No. PW4ENG 72-695; Engine
— Blade, First Stage High Pressure Turbine (HPT)
— Incorporation Of Exposed Grit TurbotipTM Blades With A Shorter Overall Blade Length. Issue Sequence 72-695, PW4000 Series. 17. Service Bulletin No. PW4ENG 72-712; Engine
— Blade, First Stage High Pressure Turbine (HPT)
— Incorporation Of Blades With A Longer Length. Issue Sequence 72-712, PW4000 Series. 18. Service Bulletin No. PW4ENG 72-381; Engine
— Duct Segments, High Pressure Turbine (HPT), 1st And 2nd Stages
— A vailability Of New Part Numbers. Issue Sequence 72-381, PW4000 Series. 19. Service Bulletin No. PW4ENG 72-482; Engine
— Duct First Stage High Pressure Turbine (HPT) Cooling
— Replacement Of With A Duct That Weighs Less. Issue Sequence 72-482, PW4000 Series. 20. Service Bulletin No. PW4ENG 72-627; Engine
— Hub, High Pressure Turbine (HPT)
— Introduce Improved Cooling T o The No. 3 Bearing Compartment For The Low Pressure Turbine (LPT). Issue Sequence 72-627, PW4000 Series. 21. Service Bulletin No. PW4ENG 72-716; Engine
— Blade, Second Stage High Pressure Turbine (HPT)
— Replacement Of With A Blade With PW A 1480 Alloy And Dimensional Changes. Issue Sequence 72-716, PW4000 Series. 22. Service Bulletin No. PW4ENG 72-723; Engine
— Blade, Second Stage High Pressure Turbine (HPT)
— Modification Of T o Incorporate A New Corrosion Resistant Under Platform Coating. Issue Sequence 72-723, PW4000 Series. 23. Service Bulletin No. PW4ENG 72-730; Engine
— Duct Assembly, High Pressure Turbine (HPT), 1st Stage Cooling
— Inspection And Modification Of The V ane Cavities. Issue Sequence 72-730, PW4000 Series. 24. Service Bulletin No. PW4ENG 72-735; Engine
— Turbine Duct Segments, First And Second Stage High Pressure Turbine (HPT)
— Replacement Of T o Improve Tip Clearance. Issue Sequence 72-735, PW4000 Series. 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 5 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.25. Service Bulletin No. PW4ENG 72-742; Engine
— V ane, 2nd Stage High Pressure Turbine (HPT)
— Replacement Of 2nd Stage V ane With Near Net Cast. Issue Sequence 72-742, PW4000 Series. 26. Service Bulletin No. PW4ENG 72-763; Engine
— Blade, Second Stage High Pressure Turbine (HPT)
— Replacement Or Modification Of T o Provide A Blade With PW A 36330 Under Platform Coating. Issue Sequence 72-763, PW4000 Series. 27. Service Bulletin No. PW4ENG 72-788; Engine
— Case And V ane Assembly, High Pressure Turbine (HPT)
— Incorporation Of A New Case And V ane Assembly That Has A 2nd Stage V ane Assembly With Improved Oxidation Life And Improved Durability
. Issue Sequence 72-788, PW4000 Series. 28. Service Bulletin No. PW4ENG 72-806; Engine
— Hub Assembly, 2nd Stage High Pressure Turbine (HPT)
— Introduction Of, Common T o Other PW4000 Engine Models. Issue Sequence 72-806, PW4000 Series. NOTE : References 15 thru 28 are shown to help find configurations in relation to this bulletin. NOTE : References 9 thru 14 are shown to help find non-production configurations that may incorporate this bulletin. Pu bl ications Changed See the Material Information Part Number Instruction
— Disposition codes for cleaning, inspection and repair compatibility between the new and old part number(s). PW4052, PW4052(-3), PW4056, PW4056(-3), PW4060, PW4060(-3), PW4060C, PW4062(-3), PW4062A(-3) Turbofan Engines, Illustrated Parts Catalog, Part No. 50A607. 72-51-00, Figures 2 and 3 72-52-00, Figures 1, 2, 3, 5, and 6 PW4152, PW4152(-3), PW4156A, PW4156A(-3), PW4158, PW4158(-3) Turbofan Engines, Illustrated Parts Catalog, Part No. 50A445. 72-51-00, Figures 2 and 3 72-52-00, Figures 1, 2, 3, 5, and 6 PW4460, PW4460(-3), PW4462, PW4462(-3) Turbofan Engines, Illustrated Parts Catalog, Part No. 50A824. 72-51-00, Figures 2 and 3 72-52-00, Figures 1, 2, 3, 5, and 6 PW4052, PW4052(-3), PW4056, PW4056(-3), PW4060, PW4060(-3), PW4060C, PW4060C(-3), PW4062(-3) Turbofan Engines, Engine Manual, Part No. 50A605. 05-10-01 72-52-00 72-00-52 PW4152, PW4152(-3), PW4156A, PW4156A(-3), PW4158, PW4158(-3) Turbofan Engines, Engine Manual, Part No. 50A443. 05-10-01 72-52-00 72-00-52 PW4460, PW4460(-3), PW4462, PW4462(-3) Turbofan Engines, Engine Manual, Part No. 50A822. 05-10-01 72-52-00 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 6 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.72-00-52 PW4000 Series 94 Inch And 100 Inch Turbofan Engines, Engine Cleaning, Inspection And Repair (CIR) Manual, Part No. 51A357. 72-51-00 72-51-01 72-51-03 72-52-00 72-52-05 72-52-06 72-52-07 72-52-08 72-52-31 72-52-32 72-52-33 72-52-35 72-52-39 I nterchangeabi l ity Old and new parts are interchangeable only in sets by stage as given in T able A and T able B below, except Bolt, PN ST141 1-05 is optional. However, to get the full performance and durability benefit, it is recommended that the old and new parts be incorporated in full sets, except Bolt, PN ST141 1-05 is optional. T able A
— 1 st Stage Set Part N u mbers Blade 56L601, 53L701-007, 53L701-008, 53L801-007, or 53L801-008 Blade Outer Air Seal Parts 53L236, 55L032-01, 53L218, 55L028, 50L285, 55L035, and 55L050 Cooling Duct Assembly 50K137-01, 50K137-001, 50K362-002, or 50K362-004 NOTE : Keep HPT Cooling Duct Assembly, PN 50K198-01 with an engine that has a T alon II burner
. V ane Support Assembly 50K613 See the Material Information T able for additional information



## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 7 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.T able B
— 2nd Stage Set Part N u mbers Blade 54L632, 54L732-002, or 54L422-002 Blade Outer Air Seal 53L135 1st Stage Hub Assembly 55L1 1 1 NOTE : 1st Stage Hub Assembly, PN 55L1 1 1 is a part of the 2nd stage set. 2nd Stage Hub Assembly 50L602-021, 50L602-022, 50L602-025, 50L602-026, 50L902-021, 50L902-023, 52L802, or 55L102 See the Material Information T able for additional information NOTE : 2nd Stage Hub Assembly PN 50L602-025, PN 50L602-026, PN 50L902-023 and PN 52L802 were introduced by Reference 21, Service Bulletin PW4ENG 72-716. NOTE : 2nd Stage Hub Assembly PN 55L102 was introduced by Reference 28, Service Bulletin PW4ENG 72-806. I nf ormation i n the Append ix Alternate Accomplishment Instructions (No) Progression Charts (Y es) Added Data (Y es) Revision to T able of Limits (Y es) Inspection Procedures (No)



## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 8 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.Material I nf ormation Material
— Cost and A vailabi l ity 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. I nd ustry Su pport Prog ram Not Applicable. The material data that f ol lows is f or each eng i ne. 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
. CAUTI ON : 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 ol lows is f or each eng i ne. For PW4052(-3), PW4056(-3), PW4060(-3), PW4062(-3), PW4062A(-3) Eng i nes: New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 50K613 1 * SUPPORT ASSY

— HPT , 1STG 50K358-01 (72-51-00-2-160 C) (2)(B)(C)(I) 50K137-001 1 DUCT
— ASSY OF, CLG, HPT , 1STG 50K372-001 (72-51-00-3-1AJ) (1)(M)(N)(I)
OR 50K362-002 1 DUCT
— ASSY OF, CLG, HPT , 1STG 50K362-001 (72-51-00-3-1AA) (1)(M)(N)(I)
OR 50K362-004 1 DUCT
— ASSY OF, CLG, HPT , 1STG 50K362-003 (72-51-00-3-1AK) (1)(M)(N)(I) Configuration-1 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 9 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 53L237 1 * ROTOR AND ST A TOR ASSY
— HPT , MODULE 53L090 (72-52-00-1-1 R) (1)(NP)

53L239 1 * .CASE AND V ANE ASSY
— TURB 50L817 (72-52-00-2-7 M) (1)(F)(N)(I)
21 ..DUCT SEGMENT
— HPT , 1STG 50L627 (72-52-00-3-10 E) (C)
53L236 42 * ..DUCT SEGMENT
— HPT , 1STG (2)(B)(R)
50L285 21 2.96 ..SEAL
— HPT DUCT , 1 AND 2STG (2)(A)
53L135 21 5,153.00 ..DUCT SEGMENT
— HPT , 2STG 50L629 (72-52-00-5-10 C) (1)(A)(C)(R)
55L035 21 * ..SEAL
— HPT DUCT SPRT , 1STG 50L373 (72-52-00-2-80 A) (2)(B)(C)(I)
55L032-01 3 * ..BAND SEGMENT
— ASSY OF, HPT , 1ST AGE 50L247-01 (72-52-00-3-30) (2)(B)(C)(I)

55L050 1 * ..GASKET OPTION (A)(O1) 55L028 1 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L372 (72-52-00-2-50 B) (2)(B)(C)(I)
5001518-01CL1 2 27.80 ...PIN (D) OR 5001518-01CL2 2 27.80 ...PIN (D) OR 5001518-01CL3 2 27.80 ...PIN (D) OR 5001518-01CL4 2 28.30 ...PIN (D) OR 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 10 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 5001518-01P3 2 25.10 ...PIN (D) OR 5001518-01P5 2 25.30 ...PIN (D) 53L218 20 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L371 (72-52-00-2-1 10 B) (2)(B)(C)(I)
5001518-01CL1 1 27.80 ...PIN (D) OR 5001518-01CL2 1 27.80 ...PIN (D) OR 5001518-01CL3 1 27.80 ...PIN (D) OR 5001518-01CL4 1 28.30 ...PIN (D) OR 5001518-01P3 1 25.10 ...PIN (D) OR 5001518-01P5 1 25.30 ...PIN (D) OR 53L239 1 * .CASE AND V ANE ASSY
— TURB 55L041 (72-52-00-2-7 R) (1)(F)(C)(I)
21 ..DUCT SEGMENT
— HPT , 1STG 50L627 (72-52-00-3-10 E) (C)
53L236 42 * ..DUCT SEGMENT
— HPT , 1STG (2)(B)(R)
50L285 21 2.96 ..SEAL
— HPT DUCT , 1 AND 2STG (2)(A)
53L135 21 5,153.00 ..DUCT SEGMENT
— HPT , 2STG 50L629 (72-52-00-5-10 C) (1)(A)(C)(R)
55L035 21 * ..SEAL
— HPT DUCT SPRT , 1STG 50L373 (72-52-00-2-80 A) (2)(B)(C)(I)



## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 1 1 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 55L032-01 3 * ..BAND SEGMENT
— ASSY OF, HPT , 1ST AGE 50L247-01 (72-52-00-3-30) (2)(B)(C)(I)

55L050 1 * ..GASKET OPTION (A)(O1) 55L028 1 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L372 (72-52-00-2-50 B) (2)(B)(C)(I)
5001518-01CL1 2 27.80 ...PIN (D) OR 5001518-01CL2 2 27.80 ...PIN (D) OR 5001518-01CL3 2 27.80 ...PIN (D) OR 5001518-01CL4 2 28.30 ...PIN (D) OR 5001518-01P3 2 25.10 ...PIN (D) OR 5001518-01P5 2 25.30 ...PIN (D) 53L218 20 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L371 (72-52-00-2-1 10 B) (2)(B)(C)(I)
5001518-01CL1 1 27.80 ...PIN (D) OR 5001518-01CL2 1 27.80 ...PIN (D) OR 5001518-01CL3 1 27.80 ...PIN (D) OR 5001518-01CL4 1 28.30 ...PIN (D) OR 5001518-01P3 1 25.10 ...PIN (D) OR 5001518-01P5 1 25.30 ...PIN (D) 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 12 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 55L081 1 * .TURBINE ROTOR
— ASSY OF, 1STG 53L281 (72-52-00-1-10 G) (1)(F)(C)(I)
56L601 60 * ..BLADE
— HPT , 1ST ST AGE 55L201 (72-52-00-1-80 M) (1)(B)(C)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 54L601 (72-52-00-1-80 K) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 54L901 (72-52-00-1-80 L) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-001 (72-52-00-1-80AR) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-003 (72-52-00-1-80A V) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-005 (72-52-00-1-80BL) (2)(B)(N)(R) OR 53L701-007 60 ..BLADE
— HPT , 1ST ST AGE 53L701-005 (72-52-00-1-80BL) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-006 (72-52-00-1-80BD) (2)(B)(N)(R) OR 53L701-008 60 ..BLADE
— HPT , 1ST ST AGE 53L701-006 (72-52-00-1-80BD) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-001 (72-52-00-1-80AP) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-003 (72-52-00-1-80A T) (2)(B)(N)(R) OR 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 13 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-005 (72-52-00-1-80BM) (2)(B)(N)(R) OR 53L801-007 60 ..BLADE
— HPT , 1ST ST AGE 53L801-005 (72-52-00-1-80BM) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-006 (72-52-00-1-80BE) (2)(B)(N)(R) OR 53L801-008 60 ..BLADE
— HPT , 1ST ST AGE 53L801-006 (72-52-00-1-80BE) (1)(M)(N)(R) 55L1 1 1 1 * ..HUB
— ASSY OF, TURB, FR 52L301 (72-52-00-1-20 D) (1)(B)(C)(I) 55L061 1 * ...HUB
— TURB, FR 51L901 (72-52-00-1-21) (D1)(C) 55L202 1 * .TURBINE ROTOR
— ASSY OF, 2STG 51L592 (72-52-00-6-20 F) (1)(F)(N)(I)
54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-001 (72-52-00-6-50AU) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-002 (72-52-00-6-50A V) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 53L032-003 (72-52-00-6-50A W) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR


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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 14 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AX) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 P) (2)(A)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L422-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AX) (1)(M)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L732-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 P) (1)(M)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) 50L602-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L602-023 (72-52-00-6-30AG) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 50L602-022 1 ..HUB
— ASSY OF, HPT , 2STG 50L602-024 (72-52-00-6-30AH) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 50L902-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L902-022 (72-52-00-6-30AF) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 

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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 15 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 52L802 1 179,403.00 ..HUB
— ASSY OF, HPT , 2STG 53L602 (72-52-00-6-30 E) (1)(A)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 55L202 1 * .TURBINE ROTOR
— ASSY OF, 2STG 54L682 (72-52-00-6-20 G) (1)(F)(C)(I)
54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-001 (72-52-00-6-50AU) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-002 (72-52-00-6-50A V) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 53L032-003 (72-52-00-6-50A W) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AX) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 P) (2)(A)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 

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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 16 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 54L422-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AX) (1)(M)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L732-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 P) (1)(M)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) 50L602-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L602-023 (72-52-00-6-30AG) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 50L602-022 1 ..HUB
— ASSY OF, HPT , 2STG 50L602-024 (72-52-00-6-30AH) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 50L902-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L902-022 (72-52-00-6-30AF) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 52L802 1 179,403.00 ..HUB
— ASSY OF, HPT , 2STG 53L602 (72-52-00-6-30 E) (1)(A)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) ST141 1-05 2 58.50 .BOL T MS9556-05 (72-52-00-2-3) (2)(A)(N) Configuration-2 53L237 1 * ROTOR AND ST A TOR ASSY
— HPT , MODULE 54L030 (72-52-00-1-1 S) (1)(NP)



## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 17 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 53L239 1 * .CASE AND V ANE ASSY
— TURB 54L01 1 (72-52-00-2-7 N) (1)(F)(N)(I)
21 ..DUCT SEGMENT
— HPT , 1STG 50L627 (72-52-00-3-10 E) (C)
53L236 42 * ..DUCT SEGMENT
— HPT , 1STG (2)(B)(R)
50L285 21 2.96 ..SEAL
— HPT DUCT , 1 AND 2STG (2)(A)
53L135 21 5,153.00 ..DUCT SEGMENT
— HPT , 2STG 50L629 (72-52-00-5-10 C) (1)(A)(C)(R)
55L035 21 * ..SEAL
— HPT DUCT SPRT , 1STG 50L373 (72-52-00-2-80 A) (2)(B)(C)(I)
55L032-01 3 * ..BAND SEGMENT
— ASSY OF, HPT , 1ST AGE 50L247-01 (72-52-00-3-30) (2)(B)(C)(I)

55L050 1 * ..GASKET OPTION (A)(O1) 55L028 1 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L372 (72-52-00-2-50 B) (2)(B)(C)(I)
5001518-01CL1 2 27.80 ...PIN (D) OR 5001518-01CL2 2 27.80 ...PIN (D) OR 5001518-01CL3 2 27.80 ...PIN (D) OR 5001518-01CL4 2 28.30 ...PIN (D) OR 5001518-01P3 2 25.10 ...PIN (D) OR 5001518-01P5 2 25.30 ...PIN (D) 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 18 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 53L218 20 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L371 (72-52-00-2-1 10 B) (2)(B)(C)(I)
5001518-01CL1 1 27.80 ...PIN (D) OR 5001518-01CL2 1 27.80 ...PIN (D) OR 5001518-01CL3 1 27.80 ...PIN (D) OR 5001518-01CL4 1 28.30 ...PIN (D) OR 5001518-01P3 1 25.10 ...PIN (D) OR 5001518-01P5 1 25.30 ...PIN (D) OR 53L239 1 * .CASE AND V ANE ASSY
— TURB 55L043 (72-52-00-2-7 Q) (1)(F)(C)(I)
21 ..DUCT SEGMENT
— HPT , 1STG 50L627 (72-52-00-3-10 E) (C)
53L236 42 * ..DUCT SEGMENT
— HPT , 1STG (2)(B)(R)
50L285 21 2.96 ..SEAL
— HPT DUCT , 1 AND 2STG (2)(A)
53L135 21 5,153.00 ..DUCT SEGMENT
— HPT , 2STG 50L629 (72-52-00-5-10 C) (1)(A)(C)(R)
55L035 21 * ..SEAL
— HPT DUCT SPRT , 1STG 50L373 (72-52-00-2-80 A) (2)(B)(C)(I)
55L032-01 3 * ..BAND SEGMENT
— ASSY OF, HPT , 1ST AGE 50L247-01 (72-52-00-3-30) (2)(B)(C)(I)



## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 19 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 55L050 1 * ..GASKET OPTION (A)(O1) 55L028 1 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L372 (72-52-00-2-50 B) (2)(B)(C)(I)
5001518-01CL1 2 27.80 ...PIN (D) OR 5001518-01CL2 2 27.80 ...PIN (D) OR 5001518-01CL3 2 27.80 ...PIN (D) OR 5001518-01CL4 2 28.30 ...PIN (D) OR 5001518-01P3 2 25.10 ...PIN (D) OR 5001518-01P5 2 25.30 ...PIN (D) 53L218 20 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L371 (72-52-00-2-1 10 B) (2)(B)(C)(I)
5001518-01CL1 1 27.80 ...PIN (D) OR 5001518-01CL2 1 27.80 ...PIN (D) OR 5001518-01CL3 1 27.80 ...PIN (D) OR 5001518-01CL4 1 28.30 ...PIN (D) OR 5001518-01P3 1 25.10 ...PIN (D) OR 5001518-01P5 1 25.30 ...PIN (D) 55L081 1 * .TURBINE ROTOR
— ASSY OF, 1STG 53L281 (72-52-00-1-10 G) (1)(F)(C)(I)
56L601 60 * ..BLADE
— HPT , 1ST ST AGE 55L201 (72-52-00-1-80 M) (1)(B)(C)(R) 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 20 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 54L601 (72-52-00-1-80 K) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 54L901 (72-52-00-1-80 L) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-001 (72-52-00-1-80AR) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-003 (72-52-00-1-80A V) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-005 (72-52-00-1-80BL) (2)(B)(N)(R) OR 53L701-007 60 ..BLADE
— HPT , 1ST ST AGE 53L701-005 (72-52-00-1-80BL) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-006 (72-52-00-1-80BD) (2)(B)(N)(R) OR 53L701-008 60 ..BLADE
— HPT , 1ST ST AGE 53L701-006 (72-52-00-1-80BD) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-001 (72-52-00-1-80AP) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-003 (72-52-00-1-80A T) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-005 (72-52-00-1-80BM) (2)(B)(N)(R) OR 53L801-007 60 ..BLADE
— HPT , 1ST ST AGE 53L801-005 (72-52-00-1-80BM) (1)(M)(N)(R) 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 21 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-006 (72-52-00-1-80BE) (2)(B)(N)(R) OR 53L801-008 60 ..BLADE
— HPT , 1ST ST AGE 53L801-006 (72-52-00-1-80BE) (1)(M)(N)(R) 55L1 1 1 1 * ..HUB
— ASSY OF, TURB, FR 52L301 (72-52-00-1-20 D) (1)(B)(C)(I) 55L061 1 * ...HUB
— TURB, FR 51L901 (72-52-00-1-21) (D1)(C) 55L202 1 * .TURBINE ROTOR
— ASSY OF, 2STG 51L592 (72-52-00-6-20 F) (1)(F)(N)(I)
54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-001 (72-52-00-6-50AU) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-002 (72-52-00-6-50A V) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 53L032-003 (72-52-00-6-50A W) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AX) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 22 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 P) (2)(A)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L422-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AX) (1)(M)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L732-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 P) (1)(M)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) 50L602-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L602-023 (72-52-00-6-30AG) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 50L602-022 1 ..HUB
— ASSY OF, HPT , 2STG 50L602-024 (72-52-00-6-30AH) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 50L902-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L902-022 (72-52-00-6-30AF) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 52L802 1 179,403.00 ..HUB
— ASSY OF, HPT , 2STG 53L602 (72-52-00-6-30 E) (1)(A)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 23 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 55L202 1 * .TURBINE ROTOR
— ASSY OF, 2STG 54L682 (72-52-00-6-20 G) (1)(F)(C)(I)
54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-001 (72-52-00-6-50AU) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-002 (72-52-00-6-50A V) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 53L032-003 (72-52-00-6-50A W) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AX) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 P) (2)(A)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L422-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AX) (1)(M)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C)


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 24 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition OR 54L732-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 P) (1)(M)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) 50L602-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L602-023 (72-52-00-6-30AG) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 50L602-022 1 ..HUB
— ASSY OF, HPT , 2STG 50L602-024 (72-52-00-6-30AH) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 50L902-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L902-022 (72-52-00-6-30AF) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 52L802 1 179,403.00 ..HUB
— ASSY OF, HPT , 2STG 53L602 (72-52-00-6-30 E) (1)(A)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) ST141 1-05 2 58.50 .BOL T MS9556-05 (72-52-00-2-3) (2)(A)(N) The material data that f ol lows is f or each eng i ne. For PW4 1 52(-3), PW4 1 56A(-3), PW4 1 58(-3) Eng i nes: New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 50K613 1 * SUPPORT ASSY

— HPT , 1STG 50K358-01 (72-51-00-2-160 C) (2)(B)(C)(I) 50K137-001 1 DUCT
— ASSY OF, CLG, HPT , 1STG 50K372-001 (72-51-00-3-1AK) (1)(M)(N)(I)
OR 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 25 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 50K362-002 1 DUCT
— ASSY OF, CLG, HPT , 1STG 50K362-001 (72-51-00-3-1AA) (1)(M)(N)(I)
OR 50K362-004 1 DUCT
— ASSY OF, CLG, HPT , 1STG 50K362-003 (72-51-00-3-1AL) (1)(M)(N)(I) Configuration-1 53L237 1 * ROTOR AND ST A TOR ASSY
— HPT , MODULE 53L090 (72-52-00-1-1 R) (1)(NP)

53L239 1 * .CASE AND V ANE ASSY
— TURB 50L817 (72-52-00-2-7 M) (1)(F)(N)(I)
21 ..DUCT SEGMENT
— HPT , 1STG 50L627 (72-52-00-3-10 E) (C)
OR 21 ..DUCT SEGMENT
— HPT , 1STG 53L133 (72-52-00-3-10 F) (C)
53L236 42 * ..DUCT SEGMENT
— HPT , 1STG (2)(B)(R)
50L285 21 2.96 ..SEAL
— HPT DUCT , 1 AND 2STG (2)(A)
53L135 21 5,153.00 ..DUCT SEGMENT
— HPT , 2STG 50L629 (72-52-00-5-10 C) (1)(A)(C)(R)
55L035 21 * ..SEAL
— HPT DUCT SPRT , 1STG 50L373 (72-52-00-2-80 A) (2)(B)(C)(I)
55L032-01 3 * ..BAND SEGMENT
— ASSY OF, HPT , 1STG 50L247-01 (72-52-00-3-30) (2)(B)(C)(I)

55L050 1 * ..GASKET OPTION (A)(O1)


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 26 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 55L028 1 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L372 (72-52-00-2-50 B) (2)(B)(C)(I)
5001518-01CL1 2 27.80 ...PIN (D) OR 5001518-01CL2 2 27.80 ...PIN (D) OR 5001518-01CL3 2 27.80 ...PIN (D) OR 5001518-01CL4 2 28.30 ...PIN (D) OR 5001518-01P3 2 25.10 ...PIN (D) OR 5001518-01P5 2 25.30 ...PIN (D) 53L218 20 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L371 (72-52-00-2-1 10 B) (2)(B)(C)(I)
5001518-01CL1 1 27.80 ...PIN (D) OR 5001518-01CL2 1 27.80 ...PIN (D) OR 5001518-01CL3 1 27.80 ...PIN (D) OR 5001518-01CL4 1 28.30 ...PIN (D) OR 5001518-01P3 1 25.10 ...PIN (D) OR 5001518-01P5 1 25.30 ...PIN (D) OR 53L239 1 * .CASE AND V ANE ASSY
— TURB 55L041 (72-52-00-2-7 R) (1)(F)(C)(I)
21 ..DUCT SEGMENT
— HPT , 1STG 50L627 (72-52-00-3-10 E) (C)


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 27 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition OR 21 ..DUCT SEGMENT
— HPT , 1STG 53L133 (72-52-00-3-10 F) (C)
53L236 42 * ..DUCT SEGMENT
— HPT , 1STG (2)(B)(R)
50L285 21 2.96 ..SEAL
— HPT DUCT , 1 AND 2STG (2)(A)
53L135 21 5,153.00 ..DUCT SEGMENT
— HPT , 2STG 50L629 (72-52-00-5-10 C) (1)(A)(C)(R)
55L035 21 * ..SEAL
— HPT DUCT SPRT , 1STG 50L373 (72-52-00-2-80 A) (2)(B)(C)(I)
55L032-01 3 * ..BAND SEGMENT
— ASSY OF, HPT , 1STG 50L247-01 (72-52-00-3-30) (2)(B)(C)(I)

55L050 1 * ..GASKET OPTION (A)(O1) 55L028 1 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L372 (72-52-00-2-50 B) (2)(B)(C)(I)
5001518-01CL1 2 27.80 ...PIN (D) OR 5001518-01CL2 2 27.80 ...PIN (D) OR 5001518-01CL3 2 27.80 ...PIN (D) OR 5001518-01CL4 2 28.30 ...PIN (D) OR 5001518-01P3 2 25.10 ...PIN (D) OR 5001518-01P5 2 25.30 ...PIN (D)


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 28 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 53L218 20 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L371 (72-52-00-2-1 10 B) (2)(B)(C)(I)
5001518-01CL1 1 27.80 ...PIN (D) OR 5001518-01CL2 1 27.80 ...PIN (D) OR 5001518-01CL3 1 27.80 ...PIN (D) OR 5001518-01CL4 1 28.30 ...PIN (D) OR 5001518-01P3 1 25.10 ...PIN (D) OR 5001518-01P5 1 25.30 ...PIN (D) 55L081 1 * .TURBINE ROTOR
— ASSY OF, 1STG 53L281 (72-52-00-1-10 G) (1)(F)(C)(I)
56L601 60 * ..BLADE
— HPT , 1ST ST AGE 55L201 (72-52-00-1-80 M) (1)(B)(C)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 54L601 (72-52-00-1-80 K) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 54L901 (72-52-00-1-80 L) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-001 (72-52-00-1-80AR) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-003 (72-52-00-1-80A V) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-005 (72-52-00-1-80BL) (2)(B)(N)(R) OR 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 29 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 53L701-007 60 ..BLADE
— HPT , 1ST ST AGE 53L701-005 (72-52-00-1-80BL) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-006 (72-52-00-1-80BD) (2)(B)(N)(R) OR 53L701-008 60 ..BLADE
— HPT , 1ST ST AGE 53L701-006 (72-52-00-1-80BD) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-001 (72-52-00-1-80AP) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-003 (72-52-00-1-80A T) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-005 (72-52-00-1-80BM) (2)(B)(N)(R) OR 53L801-007 60 ..BLADE
— HPT , 1ST ST AGE 53L801-005 (72-52-00-1-80BM) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-006 (72-52-00-1-80BE) (2)(B)(N)(R) OR 53L801-008 60 ..BLADE
— HPT , 1ST ST AGE 53L801-006 (72-52-00-1-80BE) (1)(M)(N)(R) 55L1 1 1 1 * ..HUB
— ASSY OF, TURB, FR 52L301 (72-52-00-1-20 D) (1)(B)(C)(I) 55L061 1 * ...HUB
— TURB, FR 51L901 (72-52-00-1-21) (D1)(C) 55L202 1 * .TURBINE ROTOR
— ASSY OF, 2STG 51L592 (72-52-00-6-20 F) (1)(F)(N)(I)
54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-001 (72-52-00-6-50AU) (2)(A)(N)(R)



## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 30 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-002 (72-52-00-6-50A V) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 53L032-003 (72-52-00-6-50A W) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AX) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 P) (2)(A)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L422-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AX) (1)(M)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L732-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 P) (1)(M)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C)


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 31 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 50L602-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L602-023 (72-52-00-6-30AF) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 50L602-022 1 ..HUB
— ASSY OF, HPT , 2STG 50L602-024 (72-52-00-6-30AG) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 50L902-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L902-022 (72-52-00-6-30AE) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 52L802 1 179,403.00 ..HUB
— ASSY OF, HPT , 2STG 53L602 (72-52-00-6-30 E) (1)(A)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 55L202 1 * .TURBINE ROTOR
— ASSY OF, 2STG 54L682 (72-52-00-6-20 G) (1)(F)(C)(I)
54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-001 (72-52-00-6-50AU) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-002 (72-52-00-6-50A V) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 53L032-003 (72-52-00-6-50A W) (2)(A)(N)(R)


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 32 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AX) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 P) (2)(A)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L422-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AX) (1)(M)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L732-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 P) (1)(M)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) 50L602-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L602-023 (72-52-00-6-30AF) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 50L602-022 1 ..HUB
— ASSY OF, HPT , 2STG 50L602-024 (72-52-00-6-30AG) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 50L902-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L902-022 (72-52-00-6-30AE) (1)(M)(N)(I) 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 33 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 50L816 2 61.80 ...PLUG
— METERING (D) OR 52L802 1 179,403.00 ..HUB
— ASSY OF, HPT , 2STG 53L602 (72-52-00-6-30 E) (1)(A)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) ST141 1-05 58.50 .BOL T MS9556-05 (72-52-00-2-3) (2)(A)(N) Configuration-2 53L237 1 * ROTOR AND ST A TOR ASSY
— HPT , MODULE 53L137 (72-52-00-1-1 S) (1)(NP)

53L239 1 * .CASE AND V ANE ASSY
— TURB 53L136 (72-52-00-2-7 N) (1)(F)(N)(I)
21 ..DUCT SEGMENT
— HPT , 1STG 50L627 (72-52-00-3-10 E) (C)
OR 21 ..DUCT SEGMENT
— HPT , 1STG 53L133 (72-52-00-3-10 F) (C)
53L236 42 * ..DUCT SEGMENT
— HPT , 1STG (2)(B)(R)
50L285 21 2.96 ..SEAL
— HPT DUCT , 1 AND 2STG (2)(A)
53L135 21 5,153.00 ..DUCT SEGMENT
— HPT , 2STG 50L629 (72-52-00-5-10 C) (1)(A)(C)(R)
55L035 21 * ..SEAL
— HPT DUCT SPRT , 1STG 50L373 (72-52-00-2-80 A) (2)(B)(C)(I)
55L032-01 3 * ..BAND SEGMENT
— ASSY OF, HPT , 1STG 50L247-01 (72-52-00-3-30) (2)(B)(C)(I)



## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 34 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 55L050 1 * ..GASKET OPTION (A)(O1) 55L028 1 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L372 (72-52-00-2-50 B) (2)(B)(C)(I)
5001518-01CL1 2 27.80 ...PIN (D) OR 5001518-01CL2 2 27.80 ...PIN (D) OR 5001518-01CL3 2 27.80 ...PIN (D) OR 5001518-01CL4 2 28.30 ...PIN (D) OR 5001518-01P3 2 25.10 ...PIN (D) OR 5001518-01P5 2 25.30 ...PIN (D) 53L218 20 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L371 (72-52-00-2-1 10 B) (2)(B)(C)(I)
5001518-01CL1 1 27.80 ...PIN (D) OR 5001518-01CL2 1 27.80 ...PIN (D) OR 5001518-01CL3 1 27.80 ...PIN (D) OR 5001518-01CL4 1 28.30 ...PIN (D) OR 5001518-01P3 1 25.10 ...PIN (D) OR 5001518-01P5 1 25.30 ...PIN (D) OR 53L239 1 * .CASE AND V ANE ASSY
— TURB 55L042 (72-52-00-2-7 Q) (1)(F)(C)(I)



## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 35 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 21 ..DUCT SEGMENT
— HPT , 1STG 50L627 (72-52-00-3-10 E) (C)
OR 21 ..DUCT SEGMENT
— HPT , 1STG 53L133 (72-52-00-3-10 F) (C)
53L236 42 * ..DUCT SEGMENT
— HPT , 1STG (2)(B)(R)
50L285 21 2.96 ..SEAL
— HPT DUCT , 1 AND 2STG (2)(A)
53L135 21 5,153.00 ..DUCT SEGMENT
— HPT , 2STG 50L629 (72-52-00-5-10 C) (1)(A)(C)(R)
55L035 21 * ..SEAL
— HPT DUCT SPRT , 1STG 50L373 (72-52-00-2-80 A) (2)(B)(C)(I)
55L032-01 3 * ..BAND SEGMENT
— ASSY OF, HPT , 1STG 50L247-01 (72-52-00-3-30) (2)(B)(C)(I)

55L050 1 * ..GASKET OPTION (A)(O1) 55L028 1 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L372 (72-52-00-2-50 B) (2)(B)(C)(I)
5001518-01CL1 2 27.80 ...PIN (D) OR 5001518-01CL2 2 27.80 ...PIN (D) OR 5001518-01CL3 2 27.80 ...PIN (D) OR 5001518-01CL4 2 28.30 ...PIN (D) OR 5001518-01P3 2 25.10 ...PIN (D) OR 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 36 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 5001518-01P5 2 25.30 ...PIN (D) 53L218 20 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L371 (72-52-00-2-1 10 B) (2)(B)(C)(I)
5001518-01CL1 1 27.80 ...PIN (D) OR 5001518-01CL2 1 27.80 ...PIN (D) OR 5001518-01CL3 1 27.80 ...PIN (D) OR 5001518-01CL4 1 28.30 ...PIN (D) OR 5001518-01P3 1 25.10 ...PIN (D) OR 5001518-01P5 1 25.30 ...PIN (D) 55L081 1 * .TURBINE ROTOR
— ASSY OF, 1STG 53L281 (72-52-00-1-10 G) (1)(F)(C)(I)
56L601 60 * ..BLADE
— HPT , 1ST ST AGE 55L201 (72-52-00-1-80 M) (1)(B)(C)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 54L601 (72-52-00-1-80 K) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 54L901 (72-52-00-1-80 L) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-001 (72-52-00-1-80AR) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-003 (72-52-00-1-80A V) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-005 (72-52-00-1-80BL) (2)(B)(N)(R)


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 37 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition OR 53L701-007 60 ..BLADE
— HPT , 1ST ST AGE 53L701-005 (72-52-00-1-80BL) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-006 (72-52-00-1-80BD) (2)(B)(N)(R) OR 53L701-008 60 ..BLADE
— HPT , 1ST ST AGE 53L701-006 (72-52-00-1-80BD) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-001 (72-52-00-1-80AP) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-003 (72-52-00-1-80A T) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-005 (72-52-00-1-80BM) (2)(B)(N)(R) OR 53L801-007 60 ..BLADE
— HPT , 1ST ST AGE 53L801-005 (72-52-00-1-80BM) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-006 (72-52-00-1-80BE) (2)(B)(N)(R) OR 53L801-008 60 ..BLADE
— HPT , 1ST ST AGE 53L801-006 (72-52-00-1-80BE) (1)(M)(N)(R) 55L1 1 1 1 * ..HUB
— ASSY OF, TURB, FR 52L301 (72-52-00-1-20 D) (1)(B)(C)(I) 55L061 1 * ...HUB
— TURB, FR 51L901 (72-52-00-1-21) (D1)(C) 55L202 1 * .TURBINE ROTOR
— ASSY OF, 2STG 51L592 (72-52-00-6-20 F) (1)(F)(N)(I)
54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-001 (72-52-00-6-50AU) (2)(A)(N)(R)


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 38 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-002 (72-52-00-6-50A V) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 53L032-003 (72-52-00-6-50A W) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AX) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 P) (2)(A)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L422-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AX) (1)(M)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L732-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 P) (1)(M)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C)


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 39 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 50L602-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L602-023 (72-52-00-6-30AF) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 50L602-022 1 ..HUB
— ASSY OF, HPT , 2STG 50L602-024 (72-52-00-6-30AG) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 50L902-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L902-022 (72-52-00-6-30AE) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 52L802 1 179,403.00 ..HUB
— ASSY OF, HPT , 2STG 53L602 (72-52-00-6-30 E) (1)(A)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) 55L202 1 * .TURBINE ROTOR
— ASSY OF, 2STG 54L682 (72-52-00-6-20 G) (1)(F)(C)(I)
54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-001 (72-52-00-6-50AU) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-002 (72-52-00-6-50A V) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 53L032-003 (72-52-00-6-50A W) (2)(A)(N)(R)



## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 40 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AX) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 P) (2)(A)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L422-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AX) (1)(M)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L732-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 P) (1)(M)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) 50L602-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L602-023 (72-52-00-6-30AF) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 50L602-022 1 ..HUB
— ASSY OF, HPT , 2STG 50L602-024 (72-52-00-6-30AG) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 50L902-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L902-022 (72-52-00-6-30AE) (1)(M)(N)(I) 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 41 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 50L816 2 61.80 ...PLUG
— METERING (D) OR 52L802 1 179,403.00 ..HUB
— ASSY OF, HPT , 2STG 53L602 (72-52-00-6-30 E) (1)(A)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) ST141 1-05 58.50 .BOL T MS9556-05 (72-52-00-2-3) (2)(A)(N) The material data that f ol lows is f or each eng i ne . For PW4460(-3), PW4462(-3) Eng i nes: New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 50K613 1 * SUPPORT ASSY

— HPT , 1STG 50K358-01 (72-51-00-2-160 C) (2)(B)(C)(I) 50K137-001 1 DUCT
— ASSY OF, CLG, HPT , 1STG 50K372-001 (72-51-00-3-1AJ) (1)(M)(N)(I)
OR 50K362-002 1 DUCT
— ASSY OF, CLG, HPT , 1STG 50K362-001 (72-51-00-3-1AA) (1)(M)(N)(I)
OR 50K362-004 1 DUCT
— ASSY OF, CLG, HPT , 1STG 50K362-003 (72-51-00-3-1AK) (1)(M)(N)(I) Configuration-1 53L237 1 * ROTOR AND ST A TOR ASSY
— HPT , MODULE 53L090 (72-52-00-1-1 K) (1)(NP)

53L239 1 * .CASE AND V ANE ASSY
— TURB 50L817 (72-52-00-2-7 E) (1)(F)(N)(I)
21 * ..DUCT SEGMENT
— HPT , 1STG 50L627 (72-52-00-3-10 C) (C)



## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 42 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 53L236 42 * ..DUCT SEGMENT
— HPT , 1STG (2)(B)(R)
50L285 21 2.96 ..SEAL
— HPT DUCT , 1 AND 2STG (2)(A)
53L135 21 5,153.00 ..DUCT SEGMENT
— HPT , 2STG 50L629 (72-52-00-5-10 B) (1)(A)(C)(R)
55L035 21 * ..SEAL
— HPT DUCT SPRT , 1STG 50L373 (72-52-00-2-80 A) (2)(B)(C)(I)
55L032-01 3 * ..BAND SEGMENT
— ASSY OF, HPT , 1STG 50L247-01 (72-52-00-3-30) (2)(B)(C)(I)

55L050 1 * ..GASKET OPTION (A)(O1) 55L028 1 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L372 (72-52-00-2-50 A) (2)(B)(C)(I)
5001518-01CL1 2 27.80 ...PIN (D) OR 5001518-01CL2 2 27.80 ...PIN (D) OR 5001518-01CL3 2 27.80 ...PIN (D) OR 5001518-01CL4 2 28.30 ...PIN (D) OR 5001518-01P3 2 25.10 ...PIN (D) OR 5001518-01P5 2 25.30 ...PIN (D) 53L218 20 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L371 (72-52-00-2-1 10 A) (2)(B)(C)(I)
5001518-01CL1 1 27.80 ...PIN (D) OR 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 43 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 5001518-01CL2 1 27.80 ...PIN (D) OR 5001518-01CL3 1 27.80 ...PIN (D) OR 5001518-01CL4 1 28.30 ...PIN (D) OR 5001518-01P3 1 25.10 ...PIN (D) OR 5001518-01P5 1 25.30 ...PIN (D) OR 53L239 1 * .CASE AND V ANE ASSY
— TURB 55L041 (72-52-00-2-7 G) (1)(F)(C)(I)
21 * ..DUCT SEGMENT
— HPT , 1STG 50L627 (72-52-00-3-10 C) (C)
53L236 42 * ..DUCT SEGMENT
— HPT , 1STG (2)(B)(R)
50L285 21 2.96 ..SEAL
— HPT DUCT , 1 AND 2STG (2)(A)
53L135 21 5,153.00 ..DUCT SEGMENT
— HPT , 2STG 50L629 (72-52-00-5-10 B) (1)(A)(C)(R)
55L035 21 * ..SEAL
— HPT DUCT SPRT , 1STG 50L373 (72-52-00-2-80 A) (2)(B)(C)(I)
55L032-01 3 * ..BAND SEGMENT
— ASSY OF, HPT , 1STG 50L247-01 (72-52-00-3-30) (2)(B)(C)(I)

55L050 1 * ..GASKET OPTION (A)(O1) 55L028 1 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L372 (72-52-00-2-50 A) (2)(B)(C)(I)
5001518-01CL1 2 27.80 ...PIN (D) 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 44 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition OR 5001518-01CL2 2 27.80 ...PIN (D) OR 5001518-01CL3 2 27.80 ...PIN (D) OR 5001518-01CL4 2 28.30 ...PIN (D) OR 5001518-01P3 2 25.10 ...PIN (D) OR 5001518-01P5 2 25.30 ...PIN (D) 53L218 20 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L371 (72-52-00-2-1 10 A) (2)(B)(C)(I)
5001518-01CL1 1 27.80 ...PIN (D) OR 5001518-01CL2 1 27.80 ...PIN (D) OR 5001518-01CL3 1 27.80 ...PIN (D) OR 5001518-01CL4 1 28.30 ...PIN (D) OR 5001518-01P3 1 25.10 ...PIN (D) OR 5001518-01P5 1 25.30 ...PIN (D) 55L081 1 * .TURBINE ROTOR
— ASSY OF, 1STG 53L281 (72-52-00-1-10 F) (1)(F)(C)(I)
56L601 60 * ..BLADE
— HPT , 1ST ST AGE 55L201 (72-52-00-1-80 J) (1)(B)(C)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 54L601 (72-52-00-1-80 G) (2)(B)(N)(R) OR


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 45 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 54L901 (72-52-00-1-80 H) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-001 (72-52-00-1-80AD) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-003 (72-52-00-1-80AK) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-005 (72-52-00-1-80BA) (2)(B)(N)(R) OR 53L701-007 60 ..BLADE
— HPT , 1ST ST AGE 53L701-005 (72-52-00-1-80BA) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-006 (72-52-00-1-80A T) (2)(B)(N)(R) OR 53L701-008 60 ..BLADE
— HPT , 1ST ST AGE 53L701-006 (72-52-00-1-80A T) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-001 (72-52-00-1-80AF) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-003 (72-52-00-1-80AH) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-005 (72-52-00-1-80BB) (2)(B)(N)(R) OR 53L801-007 60 ..BLADE
— HPT , 1ST ST AGE 53L801-005 (72-52-00-1-80BB) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-006 (72-52-00-1-80AU) (2)(B)(N)(R) OR 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 46 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 53L801-008 60 ..BLADE
— HPT , 1ST ST AGE 53L801-006 (72-52-00-1-80AU) (1)(M)(N)(R) 55L1 1 1 1 * ..HUB
— ASSY OF, TURB, FR 52L301 (72-52-00-1-20 D) (1)(B)(C)(I) 55L061 1 * ...HUB
— TURB, FR 51L901 (72-52-00-1-21) (D1)(C) 55L202 1 * .TURBINE ROTOR
— ASSY OF, 2STG 51L592 (72-52-00-6-20 D) (1)(F)(N)(I)
54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-001 (72-52-00-6-50AN) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-002 (72-52-00-6-50AP) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 53L032-003 (72-52-00-6-50AQ) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AR) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 L) (2)(A)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C)


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 47 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition OR 54L422-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AR) (1)(M)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L732-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 L) (1)(M)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) 50L902-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L902-022 (72-52-00-6-30AC) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 52L802 1 179,403.00 ..HUB
— ASSY OF, HPT , 2STG 53L602 (72-52-00-6-30 D) (1)(A)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 55L202 1 * .TURBINE ROTOR
— ASSY OF, 2STG 54L682 (72-52-00-6-20 E) (1)(F)(C)(I)
54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-001 (72-52-00-6-50AN) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-002 (72-52-00-6-50AP) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 48 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 53L032-003 (72-52-00-6-50AQ) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AR) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 L) (2)(A)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L422-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AR) (1)(M)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L732-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 L) (1)(M)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) 50L902-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L902-022 (72-52-00-6-30AC) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 52L802 1 179,403.00 ..HUB
— ASSY OF, HPT , 2STG 53L602 (72-52-00-6-30 D) (1)(A)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D)


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 49 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition ST141 1-05 2 58.50 .BOL T MS9556-05 (72-52-00-2-3) (2)(A)(N) Configuration-2 53L237 1 * ROTOR AND ST A TOR ASSY
— HPT , MODULE 54L030 (72-52-00-1-1 L) (1)(NP)

53L239 1 * .CASE AND V ANE ASSY
— TURB 54L01 1 (1)(F)(N)(I)
21 * ..DUCT SEGMENT
— HPT , 1STG 50L627 (72-52-00-3-10 C) (C)
53L236 42 * ..DUCT SEGMENT
— HPT , 1STG (2)(B)(R)
50L285 21 2.96 ..SEAL
— HPT DUCT , 1 AND 2STG (2)(A)
53L135 21 5,153.00 ..DUCT SEGMENT
— HPT , 2STG 50L629 (72-52-00-5-10 B) (1)(A)(C)(R)
55L035 21 * ..SEAL
— HPT DUCT SPRT , 1STG 50L373 (72-52-00-2-80 A) (2)(B)(C)(I)
55L032-01 3 * ..BAND SEGMENT
— ASSY OF, HPT , 1STG 50L247-01 (72-52-00-3-30) (2)(B)(C)(I)

55L050 1 * ..GASKET OPTION (A)(O1) 55L028 1 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L372 (72-52-00-2-50 A) (2)(B)(C)(I)
5001518-01CL1 2 27.80 ...PIN (D) OR 5001518-01CL2 2 27.80 ...PIN (D) OR 5001518-01CL3 2 27.80 ...PIN (D) 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 50 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition OR 5001518-01CL4 2 28.30 ...PIN (D) OR 5001518-01P3 2 25.10 ...PIN (D) OR 5001518-01P5 2 25.30 ...PIN (D) 53L218 20 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L371 (72-52-00-2-1 10 A) (2)(B)(C)(I)
5001518-01CL1 1 27.80 ...PIN (D) OR 5001518-01CL2 1 27.80 ...PIN (D) OR 5001518-01CL3 1 27.80 ...PIN (D) OR 5001518-01CL4 1 28.30 ...PIN (D) OR 5001518-01P3 1 25.10 ...PIN (D) OR 5001518-01P5 1 25.30 ...PIN (D) OR 53L239 1 * .CASE AND V ANE ASSY
— TURB 55L043 (1)(F)(N)(I)
21 * ..DUCT SEGMENT
— HPT , 1STG 50L627 (72-52-00-3-10 C) (C)
53L236 42 * ..DUCT SEGMENT
— HPT , 1STG (2)(B)(R)
50L285 21 2.96 ..SEAL
— HPT DUCT , 1 AND 2STG (2)(A)
53L135 21 5,153.00 ..DUCT SEGMENT
— HPT , 2STG 50L629 (72-52-00-5-10 B) (1)(A)(C)(R)


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 51 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 55L035 21 * ..SEAL
— HPT DUCT SPRT , 1STG 50L373 (72-52-00-2-80 A) (2)(B)(C)(I)
55L032-01 3 * ..BAND SEGMENT
— ASSY OF, HPT , 1STG 50L247-01 (72-52-00-3-30) (2)(B)(C)(I)

55L050 1 * ..GASKET OPTION (A)(O1) 55L028 1 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L372 (72-52-00-2-50 A) (2)(B)(C)(I)
5001518-01CL1 2 27.80 ...PIN (D) OR 5001518-01CL2 2 27.80 ...PIN (D) OR 5001518-01CL3 2 27.80 ...PIN (D) OR 5001518-01CL4 2 28.30 ...PIN (D) OR 5001518-01P3 2 25.10 ...PIN (D) OR 5001518-01P5 2 25.30 ...PIN (D) 53L218 20 * ..SUPPORT ASSY
— HPT DUCT , 1STG 50L371 (72-52-00-2-1 10 A) (2)(B)(C)(I)
5001518-01CL1 1 27.80 ...PIN (D) OR 5001518-01CL2 1 27.80 ...PIN (D) OR 5001518-01CL3 1 27.80 ...PIN (D) OR 5001518-01CL4 1 28.30 ...PIN (D) OR 5001518-01P3 1 25.10 ...PIN (D) 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 52 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition OR 5001518-01P5 1 25.30 ...PIN (D) 55L081 1 * .TURBINE ROTOR
— ASSY OF, 1STG 53L281 (72-52-00-1-10 F) (1)(F)(C)(I)
56L601 60 * ..BLADE
— HPT , 1ST ST AGE 55L201 (72-52-00-1-80 J) (1)(B)(C)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 54L601 (72-52-00-1-80 G) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 54L901 (72-52-00-1-80 H) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-001 (72-52-00-1-80AD) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-003 (72-52-00-1-80AK) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-005 (72-52-00-1-80BA) (2)(B)(N)(R) OR 53L701-007 60 ..BLADE
— HPT , 1ST ST AGE 53L701-005 (72-52-00-1-80BA) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L701-006 (72-52-00-1-80A T) (2)(B)(N)(R) OR 53L701-008 60 ..BLADE
— HPT , 1ST ST AGE 53L701-006 (72-52-00-1-80A T) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-001 (72-52-00-1-80AF) (2)(B)(N)(R) OR


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 53 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-003 (72-52-00-1-80AH) (2)(B)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-005 (72-52-00-1-80BB) (2)(B)(N)(R) OR 53L801-007 60 ..BLADE
— HPT , 1ST ST AGE 53L801-005 (72-52-00-1-80BB) (1)(M)(N)(R) OR 56L601 60 * ..BLADE
— HPT , 1ST ST AGE 53L801-006 (72-52-00-1-80AU) (2)(B)(N)(R) OR 53L801-008 60 ..BLADE
— HPT , 1ST ST AGE 53L801-006 (72-52-00-1-80AU) (1)(M)(N)(R) 55L1 1 1 1 * ..HUB
— ASSY OF, TURB, FR 52L301 (72-52-00-1-20 D) (1)(B)(C)(I) 55L061 1 * ...HUB
— TURB, FR 51L901 (72-52-00-1-21) (D1)(C) 55L202 1 * .TURBINE ROTOR
— ASSY OF, 2STG 51L592 (72-52-00-6-20 D) (1)(F)(N)(I)
54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-001 (72-52-00-6-50AN) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-002 (72-52-00-6-50AP) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 53L032-003 (72-52-00-6-50AQ) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 54 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AR) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 L) (2)(A)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L422-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AR) (1)(M)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L732-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 L) (1)(M)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) 50L902-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L902-022 (72-52-00-6-30AC) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 52L802 1 179,403.00 ..HUB
— ASSY OF, HPT , 2STG 53L602 (72-52-00-6-30 D) (1)(A)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 55L202 1 * .TURBINE ROTOR
— ASSY OF, 2STG 54L682 (72-52-00-6-20 E) (1)(F)(C)(I)



## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 55 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-001 (72-52-00-6-50AN) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L332-002 (72-52-00-6-50AP) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 53L032-003 (72-52-00-6-50AQ) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AR) (2)(A)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L632 82 8,899.00 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 L) (2)(A)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR 54L422-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L422-001 (72-52-00-6-50AR) (1)(M)(N)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) OR



## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 56 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Qty Estimate of Unit Price ($) Keyword Old PN Instructions
— Disposition 54L732-002 82 ..BLADE
— ASSY OF, HPT , 2STG 54L732 (72-52-00-6-50 L) (1)(M)(C)(R)
53L120 1 * ...COVER 53L1 19 (72-52-00-6-55 B) (D1)(C) 50L902-021 1 ..HUB
— ASSY OF, HPT , 2STG 50L902-022 (72-52-00-6-30AC) (1)(M)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) OR 52L802 1 179,403.00 ..HUB
— ASSY OF, HPT , 2STG 53L602 (72-52-00-6-30 D) (1)(A)(N)(I) 50L816 2 61.80 ...PLUG
— METERING (D) ST141 1-05 58.50 .BOL T MS9556-05 (72-52-00-2-3) (2)(A)(N) Mod ification and Spares I nf 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 (1) The new part can be obtained by modification of the 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. (B) The new part will be available approximately January 30, 201 1. (C) The old part will continue to be supplied. (D) The new part is a detail of the assembly
. It is available as a replacement part. (D1) The new part is a detail of the assembly
. It will be available approximately January 30, 201 1. (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) Gasket Option, PN 55L050, consists of a Gasket, PN 55L049, or PN 55L051. 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 57 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.Cleaning, Inspection and Repair Information (I) The cleaning, inspection and repair requirements are the same for the old and new part. The applicable engine manuals will be revised. (R) The cleaning, inspection and repair requirements are dif ferent for the old and new part. The applicable engine manuals will be revised to include the new requirements. V endor Services or Special Components/Materials V endor Ser vices P&W Designation V endor Designation Name V endor Name & Address 53L135 2nd Stage HPT Duct Segment Pratt & Whitney Global Service Partners North Berwick Part Repair Operations 1 13 Wells Street (Route 9) Mail Stop 802-32 North Berwick, ME 03906 USA F AA Repair License Number: PHYR378X Source Code: 8N802 See Standard Practices Source Code List 56L601 53L701-007 53L701-008 53L801-007 53L801-008 1st Stage HPT Blade

54L732-002 54L422-002 2nd Stage HPT Blade Turbine Overhaul Services Pte, Ltd 5 Tuas Drive 2 Mail Stop 107-58 Singapore 638639

F AA Repair License Number: OT3Y748L Source Code: 0AH76 See Standard Practices Source Code List NOTE : EXCEPT FOR WORK OR SUPPLIES TO BE PERFORMED OR FURNISHED BY PRA TT & WHITNEY , IT IS UNDERSTOOD THA T PRA TT & WHITNEY DOES NOT ENDORSE THE WORK PERFORMED BY THE COMP ANY OR COMP ANIES NAMED HEREIN OR ANY OTHER COMP ANY AND DOES NOT ACCEPT RESPONSIBILITY TO ANY DEGREE FOR THE SELECTION OF SUCH COMP ANY OR COMP ANIES FOR THE PERFORMANCE OF ANY WORK OR PROCUREMENT OF SUPPLIES. Material Data f or Each Spare Eng i ne The material for each spare engine is as stated in the preceding material information section.


## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 58 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.Reidentified Parts Reidentified Parts Data New PN Keyword Old PN 50K137-001 DUCT
— ASSY OF, CLG, HPT , 1STG 50K372-001 50K362-002 DUCT
— ASSY OF, CLG, HPT , 1STG 50K362-001 50K362-004 DUCT
— ASSY OF, CLG, HPT , 1STG 50K362-003 53L237 ROTOR AND ST A TOR ASSY
— HPT , MODULE 53L090
53L237 ROTOR AND ST A TOR ASSY
— HPT , MODULE 54L030
53L237 ROTOR AND ST A TOR ASSY
— HPT , MODULE 53L137
53L239 CASE AND V ANE ASSY
— TURB 50L817 53L239 CASE AND V ANE ASSY
— TURB 53L136 53L239 CASE AND V ANE ASSY
— TURB 54L01 1 53L239 CASE AND V ANE ASSY
— TURB 55L041 53L239 CASE AND V ANE ASSY
— TURB 55L042 53L239 CASE AND V ANE ASSY
— TURB 55L043 53L135 DUCT SEGMENT
— HPT , 2STG 50L629 55L081 TURBINE ROTOR
— ASSY OF, 1STG 53L281 56L601 BLADE
— HPT , 1ST ST AGE 55L201 53L701-007 BLADE
— HPT , 1ST ST AGE 53L701-005 53L701-008 BLADE
— HPT , 1ST ST AGE 53L701-006 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 59 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.New PN Keyword Old PN 53L801-007 BLADE
— HPT , 1ST ST AGE 53L801-005 53L801-008 BLADE
— HPT , 1ST ST AGE 53L801-006 55L1 1 1 HUB
— ASSY OF, TURB, FR 52L301 55L061 HUB
— TURB, FR 51L901 55L202 TURBINE ROTOR
— ASSY OF, 2STG 51L592 55L202 TURBINE ROTOR
— ASSY OF, 2STG 54L682 54L732-002 BLADE
— ASSY OF, HPT , 2STG 54L732 54L422-002 BLADE
— ASSY OF, HPT , 2STG 54L422-001 50L602-021 HUB
— ASSY OF, HPT , 2STG 50L602-023 50L602-022 HUB
— ASSY OF, HPT , 2STG 50L602-024 50L902-021 HUB
— ASSY OF, HPT , 2STG 50L902-022 52L802 HUB
— ASSY OF, HPT , 2STG 53L602 Necessary T ools Su pport Eq u i pment available bef ore T ool No. Name Manufacturer PW A 87003 Ring, Support Pratt & Whitney Other Material I nf ormation Data Not Applicable.



## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 60 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.Accompl ish ment I nstructions 1. Replace the 1st Stage HPT Support Assembly, PN 50K358-01 with PN 50K613. See Figure 1. 2. Install the 1st Stage HPT Cooling Duct Assembly, PN 50K137-01, PN 50K137-001, PN 50K362-002, or PN 50K362-004 or do a modification of the 1st Stage HPT Cooling Duct Assembly, PN 50K362-001, PN 50K372-001, or PN 50K362-003 as follows. See Figure 2. NOTE : 1st Stage HPT Cooling Duct Assemblies, PN 50K137-01 and PN 50K362-002 introduced by Reference 15, Service Bulletin No. PW4ENG 72-662 and PN 50K137-001 and PN 50K362-004 introduced by Reference 23, Service Bulletin No. PW4ENG 72-730 have the correct airflow that is necessary for this configuration. NOTE : Keep HPT Cooling Duct Assembly, PN 50K198-01 with an engine that has a T alon II burner
. A. Do a modification for correct airflow as specified in Reference 8, CIR Manual, Chapter/Section 72-51-03, Repair-09. B. Reidentify the 1st stage HPT cooling duct assembly as given in T able 1. Mark the new part number as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-1 1-00, Class 40. See Figure 3 for the location of marking. T able 1 New PN Old PN 50K137-001 50K372-001 50K362-002 50K362-001 50K362-004 50K362-003 3. Replace the HPT Rotor And Stator Assembly, PN 53L090, PN 53L137, or PN 54L030 with PN 53L237 or do a modification of the HPT rotor and stator assembly as follows. A. Replace the Case And V ane Assembly, PN 50L817, PN 53L136, PN 54L01 1, PN 55L041, PN 55L042, or PN 55L043 with PN 53L239 or do a modification of the case and vane assembly as follows. See Figure 4. (1) Remove the 1st Stage HPT Duct Support Assembly, PN 50L372. See Figure 5. (2) Remove the 20 1st Stage HPT Duct Support Assembly, PN 50L371. See Figure 5. (3) Remove 21 1st Stage HPT Duct Support Seal, PN 50L373. See Figure 5. (4) Remove 21 1st Stage HPT Duct Segments, PN 50L627 or PN 53L133. See Figure 6. (5) Remove three 1st Stage HPT Band Segment Assembly, PN 50L247-01. See Figure 6.



## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 61 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.(6) Assemble the 1st stage HPT duct support assemblies to the case and vane assembly as specified in Reference 5, 6, or 7, Engine Manual, Chapter/Section 72-52-03, Assembly-01 except do the procedure as follows where applicable. NOTE : Reference 5, 6, and 7, Engine Manuals Chapter/Section 72-52-03, Assembly-01, Revision 94, dated January 1, 201 1 is scheduled to incorporate the assembly procedure related to this Service Bulletin and will take precedence over the Service Bulletin. (a) Install the 1st Stage HPT Duct Support Assembly, PN 55L028 and 20 1st Stage HPT Duct Support Assemblies, PN 53L218 (called support segments) as follows. See Figure 8. 1 Locate the short and long recessed slots in the side of each support assembly
. Install a short Seal, PN 50L239 into the right side of each support with the shorter side of the seal into the recessed slot. Install a new long Seal, PN 55L035 into the right side of each support. Use Paraf fin Wax Blend P05-396, as necessary, to keep the seals in position. 2 Locate the support segments groove in the front Inner Diameter (ID) flange of the turbine case as shown. 3 Install the support assembly with the Gasket, PN 55L050 (open side up) into the inner flange of the HPT case, and engage the center pin in the support with the single slot in the HPT case flange. The two outer pins will engage the cutouts in the HPT case flange. 4 When you install the remaining support assemblies, carefully put the gasket into the grooves in each support assembly so that the gasket will be between the support assemblies and the HPT case. Use Paraf fin Wax Blend P05-396, as necessary, to keep the gasket in position. NOTE : When you install the last support segment, it can be necessary to lift the first support and install the last and first support segments together
. CAUTI ON : USE CARE NOT TO BEND OR MOVE THE SEALS OUT OF POSITION. 5 Use an applicable hand held drift (aluminum or other soft material) and mallet to install the support segments into the case. Install the support segments equally in small increments (do not bend or move the gasket or seals out of position). 6 With the support segments installed, make sure that the seals are installed correctly
. 7 On the support ring (PW A 87003), tighten the 21 adjustable torque thumbscrews until the screws will not turn. (b) Install three 1st Stage HPT Band Segment Assemblies, PN 55L032-01 as follows. See Figure 6. 1 Install three 1st stage HPT band segments into the inner groove in the 1st stage HPT duct supports. Engage the seven cutouts in each band segment into the pins of the supports. 2 Make sure that the tabs on the ends of all band segments are on the outside of the adjacent segments. 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 62 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.3 Install a spring gasket on the ID face of the 1st stage HPT duct supports. 4 Install a spring gasket into the groove at the rear of the duct segments. (c) Install the 42 1st Stage HPT Duct Segments, PN 53L236 as follows: CAUTI ON : BE CAREFUL WHEN YOU TOUCH THE DUCT SEGMENTS TO PREVENT THE CERAMIC COA TING FROM FLAKING OR CHIPPING. 1 Align the slot in the foot of the duct with the dowel pin in the rear groove of the duct support. Install the duct segments (chamfered end down) into the outer groove in the duct support. Apply pressure with your hand only and partially install the duct segment. 2 Assemble the 42 1st Stage HPT Duct Seals, PN 50L285 into the seal grooves between adjacent duct segments. Use Beeswax P05-395 or Paraf fin Wax Blend P05-396, as necessary, to keep the seals in position. Engage and install the remaining duct segments in a counterclockwise direction into the duct supports. NOTE : Counterclockwise installation of the duct segments helps align locating pin slots in the ducts with locating pins in the supports. (7) Replace 21 2nd Stage HPT Duct Segments, PN 50L629 with PN 53L135 or do a modification of the 21 2nd Stage HPT Duct Segments, PN 50L629 as follows. See Figure 7. NOTE : For PW4158(-3) engine model, 2nd Stage HPT Duct Segment, PN 53L135 was introduced in Reference 24, Service Bulletin No. PW4ENG 72-735. (a) Send the parts to a vendor listed in the V endor Services section. The modified 2nd stage HPT duct segments will be returned identified as PN 53L135. (8) Reidentify the case and vane assembly as given in T able 2 below when all the 1st stage and 2nd stage HPT blade outer air seal parts are installed. See the Interchangeability section for T able A and T able B. Mark the new part number as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-1 1-00, Class 40. See Figure 4 for the location of marking. T able 2 New PN Old PN 53L239 50L817 53L239 53L136 53L239 54L01 1 53L239 55L041 53L239 55L042 53L239 55L043 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 63 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.B. Replace the 1st Stage HPT Rotor Assembly, PN 53L281 with PN 55L081 or do a modification of the 1st Stage HPT Rotor Assembly, PN 53L281 as follows. (1) Replace 60 1st Stage HPT Blade Assembly, as given in T able 3 or do a modification of the 1st Stage HPT Blade Assembly, PN 55L201, PN 53L701-005, PN 53L701-006, PN 53L801-005,or PN 53L801-006 as follows. See Figure 9. (a) Send the parts to a vendor listed in the V endor Services section. The modified 1st stage HPT blade assembly will be returned identified as given in T able 4 below
. T able 3 New PN Old PN 55L201 54L601 54L901 53L701-001 53L701-003 53L701-005 53L701-006 53L801-001 53L801-003 53L801-005 56L601

53L801-006 T able 4 New PN Old PN 56L601 55L201 53L701-007 53L701-005 53L701-008 53L701-006 53L801-007 53L801-005 53L801-008 53L801-006 (2) Replace the 1st Stage HPT Hub Assembly, PN 52L301 with PN 55L1 1 1 or do a modification of the 1st Stage HPT Hub Assembly, PN 52L301 as follows. See Figure 9. (a) If the hub detail serial number is in T able 9, the hub is acceptable. Reidentify Hub, PN 51L901 to PN 55L061 and reidentify Hub Assembly, PN 52L301 to PN 55L1 1 1. Mark the new part number adjacent to the old part number as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-1 1-00, Class 42. See Figure 9 for the location of marking. 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 64 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.(b) If the hub detail serial number is not in T able 9, the hub is not acceptable. Replace the hub assembly
. NOTE : Hub Assembly, PN 52L301 is permitted to be installed in PW4000-100 and PW4000-94 engine series. Because of this commonality, T able 9 has the serial numbers of hubs that operated in both engine series. Engines that incorporate this Service Bulletin can use the hubs given in T able 9. (3) Reidentify the 1st Stage HPT Rotor Assembly, PN 53L281 as PN 55L081 when the new 1st stage HPT blade assembly and new 1st stage HPT hub assembly are installed. Mark the new part number as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-1 1-00, Class 44. See Figure 10 for the location of marking. C. Replace the 2nd Stage HPT Rotor Assembly, PN 51L592, or PN 54L682 with PN 55L202 or do a modification of the 2nd Stage HPT Rotor Assembly, PN 51L592 or PN 54L682 as follows: (1) Replace 82 2nd Stage HPT Blade Assembly, PN 54L332-001, PN 54L332-002, PN 53L032-003, PN 54L422-001, or PN 54L732 with PN 54L632 or do a modification of the 2nd Stage HPT Blade Assembly, PN 54L732 or PN 54L422-001 as follows. See Figure 1 1. (a) Send the parts to a vendor listed in the V endor Services section. The modified 2nd stage HPT blade assembly will be returned identified as given in T able 5 below
. T able 5 New PN Old PN 54L732-002 54L732 54L422-002 54L422-001 (2) Install the 2nd Stage HPT Hub Assembly, use PN 50L602-025, PN 50L602-026, PN 50L902-023, PN 52L802 or PN 55L102 or do a modification to the 2nd Stage HPT Hub Assembly, PN 50L602-023, PN 50L602-024, PN 50L902-022, or PN 53L602 as follows. See Figure 1 1. NOTE : PN 50L602-025, PN 50L602-026, PN 50L902-023, and PN 52L802 introduced by Reference 21, Service Bulletin PW4ENG 72-716 and PN 55L102 introduced by Reference 28, Service Bulletin PW4ENG 72-806 have six metering plugs. (a) Add two Metering Plugs, PN 50L816 (total of six) as specified in Reference 8, CIR Manual, Chapter/Section 72-52-06, Repair-14. (b) Reidentify the 2nd stage HPT hub assembly as given in T able 6 below
. Mark the new part number as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-1 1-00, Class 42. See Figure 1 1 for the location of marking.



## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 65 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.T able 6 New PN Old PN 50L602-021 50L602-023 50L602-022 50L602-024 50L902-021 50L902-022 52L802 53L602 (3) Reidentify the 2nd stage HPT rotor assembly as given in T able 7 below
. Mark the new part number as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-1 1-00, Class 44. See Figure 12 for the location of marking. T able 7 New PN Old PN 55L202 51L592 55L202 54L682 D. Reidentify the HPT rotor and stator assembly as given in T able 8 below when the Case And V ane Assembly, PN 53L239, 1st Stage HPT Rotor Assembly, PN 55L081 and 2nd Stage HPT Rotor Assembly, PN 55L202 are installed. Mark the new part number as specified in Reference 1, Standard Practices Manual, Chapter/Section 70-1 1-00, Class 39. See Figure 13 for the location of marking. T able 8 New PN Old PN 53L237 53L090 53L237 54L030 53L237 53L137 E. Replace two Bolts, PN MS9556-05 with PN ST141 1-05. See Figure 5. T able 9 SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER CKLBB16691 CKLBCT0332 CKLBE22454 CKLBEU3252 CKLBG67668 CKLBHG3966 CKLBB16692 CKLBCT0333 CKLBE22455 CKLBEU3253 CKLBG67669 CKLBHG3967 CKLBB16693 CKLBCT0334 CKLBE22456 CKLBEU3254 CKLBG67670 CKLBHG3968 CKLBB16694 CKLBCT0335 CKLBE22457 CKLBEU3255 CKLBG67671 CKLBHG3969 CKLBB16695 CKLBCT0336 CKLBE22458 CKLBEU3256 CKLBG67672 CKLBHG3970 CKLBB16696 CKLBCT0337 CKLBE22459 CKLBEU3257 CKLBG67673 CKLBHG3971 CKLBB16697 CKLBCT0338 CKLBE3281 1 CKLBEU3258 CKLBG67674 CKLBHG3972 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 66 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER CKLBB16698 CKLBD21288 CKLBE32812 CKLBEU3259 CKLBG67675 CKLBHG3973 CKLBB16699 CKLBD21289 CKLBE32813 CKLBEU3260 CKLBG67676 CKLBHG3974 CKLBB16700 CKLBD21290 CKLBE32814 CKLBEU3261 CKLBG67677 CKLBHG3975 CKLBB16701 CKLBD21291 CKLBE32815 CKLBEU3262 CKLBG67678 CKLBHG3976 CKLBB16702 CKLBD21292 CKLBE32816 CKLBEU3263 CKLBG67679 CKLBHH7978 CKLBB16703 CKLBD21293 CKLBE32817 CKLBEU3264 CKLBG69200 CKLBHH7979 CKLBB16704 CKLBD21294 CKLBE32818 CKLBF08139 CKLBG69201 CKLBHH7980 CKLBB16705 CKLBD21295 CKLBE32819 CKLBF08140 CKLBG69202 CKLBHH7981 CKLBB46778 CKLBD21296 CKLBE32820 CKLBF08141 CKLBG69203 CKLBHH7982 CKLBB46779 CKLBD21297 CKLBE32821 CKLBF08142 CKLBG69204 CKLBHH7983 CKLBB46782 CKLBD21298 CKLBE32822 CKLBF17998 CKLBG69205 CKLBHH7984 CKLBB46795 CKLBD21299 CKLBE32823 CKLBF17999 CKLBG69206 CKLBHH7985 CKLBB46796 CKLBD21300 CKLBE32824 CKLBF18000 CKLBG69207 CKLBHH7986 CKLBB46797 CKLBD21301 CKLBE32825 CKLBF18001 CKLBG7681 1 CKLBHH7987 CKLBB69433 CKLBD21302 CKLBE32826 CKLBF18002 CKLBG76812 CKLBHR4574 CKLBB69434 CKLBD21303 CKLBE32827 CKLBF30572 CKLBG76813 CKLBHR4575 CKLBB69435 CKLBD21304 CKLBE32828 CKLBF30573 CKLBG76814 CKLBHR4647 CKLBB69437 CKLBD21305 CKLBE32829 CKLBF30574 CKLBG76816 CKLBHR4648 CKLBB69438 CKLBD21306 CKLBE32830 CKLBF30575 CKLBG76817 CKLBHR4649 CKLBB69439 CKLBD21307 CKLBE32831 CKLBF30576 CKLBG76818 CKLBHR4650 CKLBB69440 CKLBD21308 CKLBE32832 CKLBF30577 CKLBG76819 CKLBHW2609 CKLBB69441 CKLBD21309 CKLBE32833 CKLBF30578 CKLBG76820 CKLBHW2610 CKLBB69442 CKLBD21310 CKLBE32834 CKLBF30579 CKLBG76821 CKLBHW5097 CKLBB69443 CKLBD2131 1 CKLBE32835 CKLBF30580 CKLBG76822 CKLBHW5098 CKLBB69444 CKLBD21312 CKLBE53676 CKLBF30581 CKLBG76823 CKLBHW5099 CKLBB69445 CKLBD40513 CKLBE53677 CKLBF37969 CKLBG76824 CKLBHX9720 CKLBB69446 CKLBD40514 CKLBE53678 CKLBF37970 CKLBG76825 CKLBHX9721 CKLBB69447 CKLBD40515 CKLBE53679 CKLBF37971 CKLBG93495 CKLBHX9722 CKLBB69448 CKLBD40516 CKLBE53680 CKLBF37973 CKLBG93496 CKLBHX9723 CKLBB69449 CKLBD40517 CKLBE53681 CKLBF37974 CKLBG93497 CKLBHY1006 CKLBB69450 CKLBD40518 CKLBE53682 CKLBF37975 CKLBG93498 CKLBHY1007 CKLBB69451 CKLBD40519 CKLBE53683 CKLBF37976 CKLBG93499 CKLBHY1008 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 67 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER CKLBB69452 CKLBD40520 CKLBE53684 CKLBF37977 CKLBG93500 CKLBHY1 196 CKLBB82396 CKLBD40521 CKLBE53685 CKLBF37978 CKLBG93501 CKLBHY1 197 CKLBB82397 CKLBD40522 CKLBE53686 CKLBF37979 CKLBG93502 CKLBHY221 1 CKLBB82398 CKLBD40523 CKLBE53687 CKLBF37980 CKLBG93503 CKLBHY2212 CKLBB82399 CKLBD40524 CKLBE53688 CKLBF37981 CKLBG93504 CKLBHY2213 CKLBB82400 CKLBD40525 CKLBE53689 CKLBF37982 CKLBG93505 CKLBHY2214 CKLBB82401 CKLBD40526 CKLBE53690 CKLBF37983 CKLBG93506 CKLBHY4945 CKLBB82402 CKLBD40527 CKLBE53691 CKLBF37984 CKLBG93507 CKLBHY4946 CKLBB82403 CKLBD40528 CKLBE53692 CKLBF37985 CKLBG93508 CKLBHY4947 CKLBB82404 CKLBD40529 CKLBE53693 CKLBF37986 CKLBG93509 CKLBHY6318 CKLBB82405 CKLBD40530 CKLBE53694 CKLBF37987 CKLBGE8080 CKLBHY6319 CKLBB82406 CKLBD40531 CKLBE53695 CKLBF37988 CKLBGE8081 CKLBHY9508 CKLBB82407 CKLBD40532 CKLBE53696 CKLBF37989 CKLBGE8082 CKLBHY9509 CKLBB82408 CKLBD40533 CKLBE53697 CKLBF37990 CKLBGE8083 CKLBHY9510 CKLBB82409 CKLBD40534 CKLBE53698 CKLBF37991 CKLBGE8084 CKLBJ09279 CKLBB82410 CKLBD40535 CKLBE53699 CKLBF37992 CKLBGE8085 CKLBJ09280 CKLBB8241 1 CKLBD40536 CKLBE53700 CKLBF37993 CKLBGE8086 CKLBJ09281 CKLBB82412 CKLBD40537 CKLBE78314 CKLBF61003 CKLBGE8087 CKLBJ19699 CKLBB82413 CKLBD66443 CKLBE78315 CKLBF61004 CKLBGE8094 CKLBJ19700 CKLBB82414 CKLBD66444 CKLBE80285 CKLBF61005 CKLBGE8095 CKLBJ19701 CKLBB82415 CKLBD66445 CKLBE80286 CKLBF61006 CKLBGE8096 CKLBJ29273 CKLBB90257 CKLBD66446 CKLBE80287 CKLBF61007 CKLBGE8097 CKLBJ29274 CKLBB90258 CKLBD66447 CKLBE80288 CKLBF61008 CKLBGE8098 CKLBJ29275 CKLBB90259 CKLBD66448 CKLBE80289 CKLBF61009 CKLBGE8099 CKLBJ29276 CKLBB90260 CKLBD66449 CKLBE80290 CKLBF61010 CKLBGG3670 CKLBJ29277 CKLBB90261 CKLBD66450 CKLBE80291 CKLBF6101 1 CKLBGG3671 CKLBJ29278 CKLBB90262 CKLBD66451 CKLBE80292 CKLBF61012 CKLBGG3672 CKLBJ38926 CKLBB90263 CKLBD66452 CKLBE80293 CKLBF61013 CKLBGG3673 CKLBJ38927 CKLBB90264 CKLBD81930 CKLBE80294 CKLBF61014 CKLBGG3674 CKLBJ38928 CKLBB90265 CKLBD81931 CKLBE80295 CKLBF61015 CKLBGG3675 CKLBJ49791 CKLBB90266 CKLBD81932 CKLBE80296 CKLBF61016 CKLBGG3676 CKLBJ49792 CKLBB90267 CKLBD81933 CKLBE80297 CKLBF61017 CKLBGG3677 CKLBJ49793 

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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 68 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER CKLBB90268 CKLBD81935 CKLBE80298 CKLBF61018 CKLBGG3684 CKLBJ49794 CKLBB90269 CKLBD81936 CKLBE80299 CKLBF61019 CKLBGG3685 CKLBJ69029 CKLBB90270 CKLBD81937 CKLBE80300 CKLBF61020 CKLBGG3686 CKLBJ69030 CKLBB90271 CKLBD81938 CKLBE80301 CKLBF61021 CKLBGG3687 CKLBJ69032 CKLBB90272 CKLBD81939 CKLBE80302 CKLBF61022 CKLBGG3688 CKLBJ69033 CKLBB90273 CKLBD81940 CKLBE80303 CKLBF72495 CKLBGG3689 CKLBJ69906 CKLBB90274 CKLBD81941 CKLBE80304 CKLBF72496 CKLBGG6307 CKLBJ69907 CKLBB90275 CKLBD81942 CKLBE80305 CKLBF72497 CKLBGG6308 CKLBJ69909 CKLBB90276 CKLBD81945 CKLBE80306 CKLBF72498 CKLBGG6309 CKLBJ6991 1 CKLBBX2871 CKLBD81946 CKLBE80307 CKLBF72499 CKLBGG6310 CKLBJ79166 CKLBBX2872 CKLBD81947 CKLBE80308 CKLBF72500 CKLBGG631 1 CKLBJ79167 CKLBBX2873 CKLBD81948 CKLBE80309 CKLBF72501 CKLBGJ1 199 CKLBJ79168 CKLBBX2874 CKLBD81949 CKLBE80310 CKLBF72502 CKLBGJ1200 CKLBJ88581 CKLBBX2875 CKLBD81950 CKLBE8031 1 CKLBF72503 CKLBGJ1201 CKLBJ88582 CKLBBX2876 CKLBD81951 CKLBE80312 CKLBF72504 CKLBGJ1202 CKLBJ88583 CKLBBX2877 CKLBD81952 CKLBE80313 CKLBF88724 CKLBGJ1203 CKLBJ89169 CKLBBX2878 CKLBD81953 CKLBE93248 CKLBF88725 CKLBGJ1204 CKLBJ89170 CKLBBX2879 CKLBD81954 CKLBE93249 CKLBF88726 CKLBGK2663 CKLBJ89171 CKLBBX2880 CKLBDA8760 CKLBE93250 CKLBF88727 CKLBGK2664 CKLBJ99276 CKLBBX2881 CKLBDA8761 CKLBE93251 CKLBF88734 CKLBGK2665 CKLBJ99277 CKLBBX2882 CKLBDA8762 CKLBE93252 CKLBF88735 CKLBGK2666 CKLBJ99278 CKLBBX2883 CKLBDA8763 CKLBE93253 CKLBF88736 CKLBGK2670 CKLBJ99279 CKLBC10793 CKLBDA8764 CKLBE93254 CKLBF88737 CKLBGK2671 CKLBJ99280 CKLBC10794 CKLBDA8765 CKLBE93255 CKLBF88738 CKLBGK2672 CKLBJA9185 CKLBC10795 CKLBDA8766 CKLBE93256 CKLBF88739 CKLBGK2673 CKLBJB8093 CKLBC10796 CKLBDA8767 CKLBE93257 CKLBF88740 CKLBGK2674 CKLBJB8094 CKLBC10797 CKLBDA8768 CKLBE93258 CKLBF88741 CKLBGK2675 CKLBJB8095 CKLBC10798 CKLBDA8769 CKLBE93259 CKLBF88742 CKLBGK2676 CKLBJB8096 CKLBC10799 CKLBDA8770 CKLBE93260 CKLBF88743 CKLBGK2677 CKLBJB8097 CKLBC10800 CKLBDA8771 CKLBE93261 CKLBF88744 CKLBGK2678 CKLBJB9597 CKLBC10801 CKLBDA8772 CKLBE93262 CKLBF88745 CKLBGK2679 CKLBJB9598 CKLBC10802 CKLBDA8773 CKLBE93263 CKLBF88746 CKLBGK2680 CKLBJB9599 

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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 69 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER CKLBC10803 CKLBDA8774 CKLBE93264 CKLBF88747 CKLBGK2681 CKLBJB9600 CKLBC10804 CKLBDA8775 CKLBE93265 CKLBF88748 CKLBGK2682 CKLBJD4336 CKLBC10805 CKLBDA8776 CKLBE93266 CKLBFB9897 CKLBGN4858 CKLBJD4337 CKLBC10806 CKLBDA8777 CKLBE93267 CKLBFB9898 CKLBGN4859 CKLBJD4338 CKLBC10807 CKLBDA8778 CKLBE93268 CKLBFB9899 CKLBGN4860 CKLBJD4339 CKLBC10808 CKLBDA8779 CKLBE93269 CKLBFB9900 CKLBGN4861 CKLBJD4340 CKLBC10809 CKLBDE0536 CKLBEA1 101 CKLBFD6095 CKLBGN4862 CKLBJD4799 CKLBC10810 CKLBDE0537 CKLBEA1 102 CKLBFD6096 CKLBGN4863 CKLBJD4800 CKLBC1081 1 CKLBDE0538 CKLBEA1 103 CKLBFD6097 CKLBGN4864 CKLBJD4801 CKLBC10812 CKLBDE0539 CKLBEA1 104 CKLBFD6098 CKLBGN4865 CKLBJD4802 CKLBC19360 CKLBDE0540 CKLBEA1 105 CKLBFD6099 CKLBGN4866 CKLBJD9197 CKLBC19366 CKLBDE0541 CKLBEA1 106 CKLBFD6100 CKLBGN4867 CKLBJD9198 CKLBC19368 CKLBDE0542 CKLBEA1 107 CKLBFD6101 CKLBGN4868 CKLBJE1316 CKLBC19369 CKLBDE0543 CKLBEA1 108 CKLBFD6102 CKLBGN4869 CKLBJE1317 CKLBC29252 CKLBDE0544 CKLBEA1 109 CKLBFD6103 CKLBGN4870 CKLBJE2874 CKLBC29253 CKLBDE0545 CKLBEA1 1 10 CKLBFD6104 CKLBGN4871 CKLBJE2875 CKLBC29254 CKLBDE0546 CKLBEA1 1 1 1 CKLBFD6105 CKLBGN4872 CKLBJE9785 CKLBC29255 CKLBDE0547 CKLBEA1 1 12 CKLBFD6106 CKLBGN4873 CKLBJE9786 CKLBC29256 CKLBDE0548 CKLBEA1 1 13 CKLBFD6108 CKLBGN4874 CKLBJE9787 CKLBC29257 CKLBDE0549 CKLBEA1 1 14 CKLBFD6109 CKLBGN4875 CKLBJG8025 CKLBC29258 CKLBDE0550 CKLBEA1 1 15 CKLBFD61 10 CKLBGN4876 CKLBJG8026 CKLBC29259 CKLBDE0551 CKLBEA1 1 16 CKLBFD61 1 1 CKLBGN4877 CKLBJG8027 CKLBC29260 CKLBDE0552 CKLBEA1 1 17 CKLBFD61 12 CKLBGP4626 CKLBJG9730 CKLBC29261 CKLBDE0553 CKLBEA1 1 18 CKLBFD61 13 CKLBGP4628 CKLBJG9731 CKLBC29262 CKLBDE0554 CKLBEA1 1 19 CKLBFD61 14 CKLBGP4629 CKLBJG9732 CKLBC29263 CKLBDE0555 CKLBEA1 120 CKLBFD61 15 CKLBGP4630 CKLBJJ6873 CKLBC29264 CKLBDF2049 CKLBEA1 121 CKLBFD61 16 CKLBGP4631 CKLBJJ6874 CKLBC29265 CKLBDF2050 CKLBEA1 122 CKLBFD61 17 CKLBGP4632 CKLBJJ6875 CKLBC29266 CKLBDF2051 CKLBEA1 125 CKLBFD61 18 CKLBGP4633 CKLBJJ7928 CKLBC29267 CKLBDF2052 CKLBEA8966 CKLBFD61 19 CKLBGP4634 CKLBJJ7929 CKLBC29268 CKLBDF2053 CKLBEA8967 CKLBFD6120 CKLBGP4635 CKLBJJ7930 CKLBC29269 CKLBDF2054 CKLBEA8968 CKLBFD6121 CKLBGP4636 CKLBJL9514 

## l August 7/09 

# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 70 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER CKLBC29270 CKLBDF2055 CKLBEA8969 CKLBFD6122 CKLBGP4637 CKLBJL9515 CKLBC29271 CKLBDF2056 CKLBEA8970 CKLBFD6123 CKLBGP4638 CKLBJL9516 CKLBC53129 CKLBDF2057 CKLBEA8971 CKLBFD6124 CKLBGP4639 CKLBJL9518 CKLBC53130 CKLBDF2058 CKLBEA8972 CKLBFH2489 CKLBGP4640 CKLBJP4144 CKLBC53131 CKLBDF2059 CKLBEA8973 CKLBFH2490 CKLBGR081 1 CKLBJP4145 CKLBC53132 CKLBDF2060 CKLBEA8974 CKLBFJ0720 CKLBGR0812 CKLBJP4146 CKLBC53133 CKLBDF2061 CKLBEA8975 CKLBFJ0721 CKLBGR0813 CKLBJP8037 CKLBC53134 CKLBDF2062 CKLBEA8976 CKLBFJ0725 CKLBGR0814 CKLBJP8038 CKLBC53135 CKLBDF2063 CKLBEA8977 CKLBFJ0726 CKLBGR0815 CKLBJP8039 CKLBC53136 CKLBDF2064 CKLBEA8978 CKLBFJ0727 CKLBGR0816 CKLBJP8815 CKLBC53137 CKLBDF2065 CKLBEA8979 CKLBFJ0728 CKLBGR0817 CKLBJP8816 CKLBC53138 CKLBDF2066 CKLBEA8980 CKLBFJ0729 CKLBGR0818 CKLBJP8818 CKLBC53139 CKLBDF2067 CKLBEA8981 CKLBFJ0730 CKLBGR0819 CKLBJP8819 CKLBC53140 CKLBDF2068 CKLBEA8982 CKLBFJ0731 CKLBGR0820 CKLBJR31 14 CKLBC53141 CKLBDF2069 CKLBEA8983 CKLBFJ0732 CKLBGR0821 CKLBJR9176 CKLBC53142 CKLBDF2070 CKLBEA8984 CKLBFJ0733 CKLBGR0822 CKLBJR9177 CKLBC53143 CKLBDF2071 CKLBEA8985 CKLBFJ0734 CKLBGR0823 CKLBJR9178 CKLBC53144 CKLBDF2072 CKLBEA8986 CKLBFJ9005 CKLBGR0824 CKLBJR9179 CKLBC53145 CKLBDF2073 CKLBEA8987 CKLBFJ9006 CKLBGR0825 CKLBJT3527 CKLBC53146 CKLBDH5086 CKLBEA8988 CKLBFJ9007 CKLBGR7037 CKLBJT3528 CKLBC53147 CKLBDH5087 CKLBEA8989 CKLBFJ9008 CKLBGR7038 CKLBJT4872 CKLBC53148 CKLBDH5088 CKLBEA8990 CKLBFJ9009 CKLBGR7039 CKLBJT4873 CKLBC85800 CKLBDH5089 CKLBEG0125 CKLBFJ9010 CKLBGR7040 CKLBJT4874 CKLBC85801 CKLBDH5090 CKLBEG0126 CKLBFJ901 1 CKLBGR7041 CKLBJW6920 CKLBC85802 CKLBDH5091 CKLBEG0127 CKLBFJ9012 CKLBGR7042 CKLBJW6921 CKLBC85803 CKLBDH5092 CKLBEG0128 CKLBFJ9013 CKLBGR7043 CKLBJW6922 CKLBC85804 CKLBDH5093 CKLBEG0129 CKLBFJ9014 CKLBGR7044 CKLBJW6923 CKLBC85805 CKLBDH5094 CKLBEG0130 CKLBFL5434 CKLBGR7045 CKLBJW6924 CKLBC85806 CKLBDH5095 CKLBEG0131 CKLBFL5435 CKLBGR7046 CKLBJW6925 CKLBC85807 CKLBDH5096 CKLBEG0132 CKLBFL5436 CKLBGR7047 CKLBJW9642 CKLBC85808 CKLBDH5097 CKLBEG0133 CKLBFL5437 CKLBGR7048 CKLBJW9643 CKLBC85809 CKLBDH5098 CKLBEG0134 CKLBFL5438 CKLBGR7049 CKLBJW9652 

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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 71 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER CKLBC85810 CKLBDH5099 CKLBEG0135 CKLBFL5439 CKLBGR7050 CKLBJW9653 CKLBC8581 1 CKLBDH5100 CKLBEG0136 CKLBFL5442 CKLBGR7051 CKLBJX6536 CKLBC85812 CKLBDH5101 CKLBEG0137 CKLBFM8677 CKLBGS8324 CKLBJX6537 CKLBC85813 CKLBDH5102 CKLBEG0138 CKLBFM8678 CKLBGS8325 CKLBJX6538 CKLBC85814 CKLBDH5103 CKLBEG0139 CKLBFM8679 CKLBGS8326 CKLBJX6539 CKLBC85815 CKLBDH5104 CKLBEG0140 CKLBFM8680 CKLBGS8327 CKLBJX6742 CKLBC85816 CKLBDH5105 CKLBEG0141 CKLBFM8681 CKLBGS8328 CKLBJX6743 CKLBC85817 CKLBDH5106 CKLBEG0142 CKLBFM8682 CKLBGS8329 CKLBJY8739 CKLBC85818 CKLBDH5107 CKLBEG0143 CKLBFN2765 CKLBGS8330 CKLBJY8740 CKLBC85819 CKLBDH5108 CKLBEG0144 CKLBFN2766 CKLBGS8331 CKLBKA8594 CKLBCC8841 CKLBDH5109 CKLBEG0145 CKLBFN2767 CKLBGS8332 CKLBKA8595 CKLBCC8842 CKLBDH51 10 CKLBEG0146 CKLBFN2768 CKLBGS8333 CKLBKA8596 CKLBCC8843 CKLBDL2130 CKLBEG0147 CKLBFN2769 CKLBGS8334 CKLBKA8597 CKLBCC8844 CKLBDL2131 CKLBEG0148 CKLBFN2770 CKLBGS8335 CKLBKA9422 CKLBCC8845 CKLBDL2132 CKLBEG0149 CKLBFN2771 CKLBGS8336 CKLBKB1958 CKLBCC8846 CKLBDL2133 CKLBEH2240 CKLBFN2772 CKLBGS8337 CKLBKB1959 CKLBCC8847 CKLBDL2134 CKLBEH2241 CKLBFN2773 CKLBGS8338 CKLBKB1960 CKLBCC8848 CKLBDL2135 CKLBEH2242 CKLBFN2774 CKLBGW6222 CKLBKB1961 CKLBCC8849 CKLBDL2136 CKLBEH2243 CKLBFR0737 CKLBGW6223 CKLBKB1962 CKLBCC8850 CKLBDL2137 CKLBEH2244 CKLBFR0738 CKLBGW6224 CKLBKB1963 CKLBCC8851 CKLBDL2138 CKLBEH2245 CKLBFR0739 CKLBGW6225 CKLBKB1964 CKLBCC8852 CKLBDL2139 CKLBEH2246 CKLBFR0740 CKLBGW6226 CKLBKB1965 CKLBCC8853 CKLBDL2140 CKLBEH2247 CKLBFS0185 CKLBGW6227 CKLBKC8108 CKLBCC8854 CKLBDL2141 CKLBEH2248 CKLBFS0186 CKLBGW6228 CKLBKC8109 CKLBCC8855 CKLBDL2142 CKLBEH2249 CKLBFS0187 CKLBGX9578 CKLBKC81 10 CKLBCC8856 CKLBDL2143 CKLBEH2250 CKLBFS0188 CKLBGX9579 CKLBKC81 1 1 CKLBCC8857 CKLBDL2144 CKLBEH2251 CKLBFS0189 CKLBGX9580 CKLBKC81 12 CKLBCC8858 CKLBDL2145 CKLBEH2252 CKLBFS0190 CKLBGX9581 CKLBKC81 13 CKLBCC8859 CKLBDL2146 CKLBEH2253 CKLBFS2919 CKLBGX9582 CKLBKC81 14 CKLBCC8860 CKLBDL2147 CKLBEH2254 CKLBFS2920 CKLBGX9583 CKLBKC81 17 CKLBCJ2829 CKLBDL2148 CKLBEH2255 CKLBFS2921 CKLBGX9584 CKLBKC9991 CKLBCJ2830 CKLBDL2149 CKLBEH2256 CKLBFS2922 CKLBGX9585 CKLBKC9992 

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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 72 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER CKLBCJ2831 CKLBDL2150 CKLBEH2257 CKLBFS2923 CKLBGX9586 CKLBKC9993 CKLBCJ2832 CKLBDL2151 CKLBEH2258 CKLBFS2924 CKLBGX9587 CKLBKC9994 CKLBCK0010 CKLBDL2152 CKLBEH2259 CKLBFS2925 CKLBGX9588 CKLBKD8827 CKLBCK001 1 CKLBDL2153 CKLBEH2260 CKLBFS2926 CKLBGX9589 CKLBKD8829 CKLBCK0012 CKLBDL2154 CKLBEH2261 CKLBFS2927 CKLBGX9590 CKLBKD8830 CKLBCK0013 CKLBDN0397 CKLBEH2262 CKLBFS2928 CKLBGX9591 CKLBKD8831 CKLBCK0014 CKLBDN0398 CKLBEH2263 CKLBFU1371 CKLBGX9592 CKLBKE8183 CKLBCK0015 CKLBDN0399 CKLBEH2264 CKLBFU1372 CKLBGX9593 CKLBKE8186 CKLBCK0016 CKLBDN0400 CKLBEK7665 CKLBFU1373 CKLBGX9594 CKLBKE8188 CKLBCK0017 CKLBDN0401 CKLBEK7666 CKLBFU1374 CKLBGX9595 CKLBKE8189 CKLBCK0018 CKLBDN0402 CKLBEK7667 CKLBFU1375 CKLBGX9597 CKLBKE8190 CKLBCK0019 CKLBDN0403 CKLBEK7668 CKLBFU1376 CKLBH09708 CKLBKE8191 CKLBCK0020 CKLBDN0404 CKLBEK7669 CKLBFU6372 CKLBH09710 CKLBKE8192 CKLBCK0021 CKLBDN0405 CKLBEK7670 CKLBFU6381 CKLBH0971 1 CKLBKE8193 CKLBCK0022 CKLBDN0406 CKLBEK7671 CKLBFU7828 CKLBH19006 CKLBKE9132 CKLBCK0023 CKLBDN0407 CKLBEK7672 CKLBFU7829 CKLBH19007 CKLBKE9133 CKLBCK0024 CKLBDN0408 CKLBEK7673 CKLBFU7830 CKLBH19008 CKLBKE9134 CKLBCK0025 CKLBDN0409 CKLBEK7674 CKLBFU7831 CKLBH19995 CKLBKE9135 CKLBCK0026 CKLBDN0410 CKLBEK7675 CKLBFU7832 CKLBH19996 CKLBKE9278 CKLBCK0027 CKLBDN041 1 CKLBEK7676 CKLBFU7833 CKLBH19997 CKLBKE9279 CKLBCK0028 CKLBDN0412 CKLBEK7677 CKLBFU7834 CKLBH19998 CKLBKE9280 CKLBCK0029 CKLBDN0413 CKLBEK7678 CKLBFU7835 CKLBH23735 CKLBKE9281 CKLBCL9923 CKLBDN0414 CKLBEK7679 CKLBFU7836 CKLBH23736 CKLBKE9397 CKLBCL9924 CKLBDN0415 CKLBEK7680 CKLBFU7837 CKLBH23737 CKLBKE9398 CKLBCL9925 CKLBDN0416 CKLBEK7681 CKLBFW2225 CKLBH23738 CKLBKE9791 CKLBCL9926 CKLBDN0417 CKLBEK7682 CKLBFW2226 CKLBH23739 CKLBKE9792 CKLBCL9927 CKLBDN0418 CKLBEK7683 CKLBFW2227 CKLBH24398 CKLBKE9793 CKLBCL9928 CKLBDN0419 CKLBEK7684 CKLBFW2228 CKLBH24399 CKLBKE9794 CKLBCL9929 CKLBDN0420 CKLBEK7685 CKLBFW2229 CKLBH29370 CKLBKF8582 CKLBCL9930 CKLBDN0421 CKLBEK7686 CKLBFW2230 CKLBH29371 CKLBKF8583 CKLBCL9931 CKLBDW8765 CKLBEK7687 CKLBFW2231 CKLBH29372 CKLBKF8584 CKLBCL9932 CKLBDW8766 CKLBEK7688 CKLBFW2232 CKLBH37992 CKLBKF8921 

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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 73 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER CKLBCL9933 CKLBDW8767 CKLBEK7689 CKLBFW2233 CKLBH37993 CKLBKF8923 CKLBCL9934 CKLBDW8768 CKLBEN2029 CKLBFW2234 CKLBH37994 CKLBKF9487 CKLBCL9935 CKLBDW8769 CKLBEN2030 CKLBFW6815 CKLBH37995 CKLBKF9488 CKLBCL9936 CKLBDW8770 CKLBEN2031 CKLBFW6816 CKLBH37996 CKLBKF9489 CKLBCL9937 CKLBDW8771 CKLBEN2032 CKLBFW6817 CKLBH77869 CKLBKF9686 CKLBCL9938 CKLBDW8772 CKLBEN2033 CKLBFW6818 CKLBH77870 CKLBKF9687 CKLBCL9939 CKLBDW8773 CKLBEN2034 CKLBG31226 CKLBH77871 CKLBKF9688 CKLBCL9940 CKLBDW8774 CKLBEN2035 CKLBG31227 CKLBH77872 CKLBKG2419 CKLBCL9941 CKLBDW8775 CKLBEN2036 CKLBG33675 CKLBH77873 CKLBKG2420 CKLBCL9942 CKLBDW8776 CKLBEN2037 CKLBG33676 CKLBH79584 CKLBKG2487 CKLBCL9943 CKLBDW8777 CKLBEN2038 CKLBG33677 CKLBH79585 CKLBKG2488 CKLBCL9944 CKLBDW8778 CKLBEN2039 CKLBG33678 CKLBH79586 CKLBKG3433 CKLBCL9945 CKLBDW8779 CKLBEN2040 CKLBG33679 CKLBH79587 CKLBKG3434 CKLBCL9946 CKLBDW8780 CKLBEN2041 CKLBG33680 CKLBHA5746 CKLBKG3435 CKLBCL9947 CKLBDW8781 CKLBEN2042 CKLBG37217 CKLBHA5747 CKLBKG4103 CKLBCL9948 CKLBDW8782 CKLBEN2043 CKLBG37218 CKLBHA5748 CKLBKG4104 CKLBCL9949 CKLBDW8783 CKLBER2355 CKLBG45014 CKLBHA5749 CKLBKG4105 CKLBCL9950 CKLBDW8784 CKLBER2356 CKLBG45015 CKLBHA5750 CKLBKG4184 CKLBCL9951 CKLBDW8785 CKLBER2357 CKLBG45016 CKLBHA5751 CKLBKG5022 CKLBCL9952 CKLBDW8786 CKLBER2358 CKLBG45017 CKLBHA5752 CKLBKG5023 CKLBCL9953 CKLBDW8787 CKLBER2359 CKLBG45018 CKLBHA5753 CKLBKG5325 CKLBCL9954 CKLBDW8788 CKLBER2360 CKLBG45019 CKLBHA5754 CKLBKG5326 CKLBCL9955 CKLBDW8789 CKLBER2361 CKLBG45020 CKLBHA5755 CKLBKG6778 CKLBCL9956 CKLBE13875 CKLBER2362 CKLBG45021 CKLBHA5756 CKLBKG9495 CKLBCL9957 CKLBE13876 CKLBER2363 CKLBG45022 CKLBHA5757 CKLBKG9496 CKLBCL9958 CKLBE13877 CKLBER2364 CKLBG55320 CKLBHA5758 CKLBKG9498 CKLBCL9959 CKLBE13878 CKLBER2365 CKLBG55321 CKLBHA5759 CKLBKK8603 CKLBCL9960 CKLBE13879 CKLBER2366 CKLBG61075 CKLBHA5760 CKLBKK8912 CKLBCL9961 CKLBE16000 CKLBER2367 CKLBG61076 CKLBHB0140 CKLBKK8913 CKLBCL9962 CKLBE16001 CKLBER2368 CKLBG61077 CKLBHB0141 CKLBKK9614 CKLBCL9963 CKLBE16002 CKLBER2369 CKLBG61078 CKLBHB0142 CKLBKL3392 CKLBCL9964 CKLBE16003 CKLBER2370 CKLBG61079 CKLBHB0143 CKLBKL6139 

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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 74 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER SERIAL NUMBER CKLBCL9965 CKLBE16004 CKLBER2371 CKLBG61080 CKLBHB3594 CKLBKL6140 CKLBCL9966 CKLBE16005 CKLBER2372 CKLBG61081 CKLBHB3595 CKLBKL7041 CKLBCL9967 CKLBE16006 CKLBER2373 CKLBG61082 CKLBHB3596 CKLBKP8948 CKLBCL9968 CKLBE16007 CKLBER2374 CKLBG61083 CKLBHB3597 CKLBKP8949 CKLBCL9969 CKLBE16008 CKLBER2375 CKLBG61084 CKLBHB3598 CKLBKP8950 CKLBCL9970 CKLBE16009 CKLBER2376 CKLBG64467 CKLBHB3599 CKLBKP9343 CKLBCL9971 CKLBE22439 CKLBER2377 CKLBG64468 CKLBHB3600 CKLBKS4271 CKLBCL9972 CKLBE22440 CKLBER2378 CKLBG64469 CKLBHB3601 CKLBKS4272 CKLBCT0319 CKLBE22441 CKLBER2379 CKLBG64760 CKLBHB3602 CKLBKS4273 CKLBCT0320 CKLBE22442 CKLBEU3240 CKLBG64761 CKLBHB3603 CKLBKS6087 CKLBCT0321 CKLBE22443 CKLBEU3241 CKLBG64762 CKLBHB3604 CKLBKS9257 CKLBCT0322 CKLBE22444 CKLBEU3242 CKLBG64763 CKLBHB3607 CKLBKT9578 CKLBCT0323 CKLBE22445 CKLBEU3243 CKLBG64764 CKLBHB3608 CKLBKU8673 CKLBCT0324 CKLBE22446 CKLBEU3244 CKLBG64765 CKLBHE9525 CKLBKU8996 CKLBCT0325 CKLBE22447 CKLBEU3245 CKLBG64766 CKLBHE9526 CKLBKU9559 CKLBCT0326 CKLBE22448 CKLBEU3246 CKLBG64767 CKLBHE9527 CKLBKU9560 CKLBCT0327 CKLBE22449 CKLBEU3247 CKLBG64768 CKLBHE9528 CKLBKU9561 CKLBCT0328 CKLBE22450 CKLBEU3248 CKLBG64769 CKLBHG3962 CKLBKW91 19 CKLBCT0329 CKLBE22451 CKLBEU3249 CKLBG67665 CKLBHG3963 CKLBKW9120 CKLBCT0330 CKLBE22452 CKLBEU3250 CKLBG67666 CKLBHG3964 CKLBKW9121 CKLBCT0331 CKLBE22453 CKLBEU3251 CKLBG67667 CKLBHG3965 CKLBKW9122



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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 75 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.LOCA TION OF THE 1ST ST AGE HPT SUPPORT ASSEMBL Y 72-51-00 FIGURE 1 

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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 76 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.LOCA TION OF THE 1ST ST AGE HPT COOLING DUCT ASSEMBL Y 72-51-00 FIGURE 2 

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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 77 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.MARKING LOCA TION OF THE 1ST ST AGE HPT COOLING DUCT ASSEMBL Y FIGURE 3


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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 78 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.LOCA TION OF THE CASE AND V ANE ASSEMBL Y 72-52-00 FIGURE 4 

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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 79 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.LOCA TION OF THE HPT DUCT SEGMENT SUPPORT ASSEMBL Y 72-52-00 FIGURE 5 

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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 80 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.LOCA TION OF THE 1ST ST AGE HPT DUCT SEGMENT ASSEMBL Y AND BAND SEGMENT 72-52-00 FIGURE 6 

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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 81 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.LOCA TION OF THE 2ND ST AGE HPT DUCT SEGMENT 72-52-00 FIGURE 7 

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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 82 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.INST ALLA TION OF 1ST ST AGE DUCT SUPPORT SEGMENTS FIGURE 8


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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 83 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.LOCA TION OF THE 1ST ST AGE HPT BLADES AND HUB ASSEMBL Y 72-52-00 FIGURE 9 

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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 84 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.MARKING LOCA TION OF THE 1ST ST AGE HPT ROTOR ASSEMBL Y FIGURE 10


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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 85 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.LOCA TION OF THE 2ND ST AGE HPT BLADES AND HUB ASSEMBL Y 72-52-00 FIGURE 1 1 

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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 86 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.MARKING LOCA TION OF THE 2ND ST AGE HPT ROTOR ASSEMBL Y FIGURE 12


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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 87 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.MARKING LOCA TION OF THE HPT ROTOR AND ST A TOR ASSEMBL Y FIGURE 13


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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 88 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.Append ix Parts Progression to Show the Changed Part i n Relation to Other Parts

1ST ST AGE HPT SUPPORT ASSEMBL Y CHART A

1ST ST AGE HPT COOLING DUCT ASSEMBL Y CHART B



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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 89 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.HPT ROTOR AND ST A TOR ASSEMBL Y CHART C

TURBINE CASE AND V ANE ASSEMBL Y CHART D


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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 90 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.1ST AND 2ND ST AGE HPT DUCT SEGMENTS CHART E

1ST AND 2ND ST AGE TURBINE ROTOR ASSEMBL Y CHART F


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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 91 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.1ST ST AGE HPT BLADE CHART G


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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 92 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.2ND ST AGE HPT BLADE CHART H

1ST ST AGE HPT HUB ASSEMBL Y AND HUB CHART J


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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 93 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.2ND ST AGE HPT HUB ASSEMBL Y CHART K Added Data I nternal Reference I nf ormation Revision No. Reference Document Origination Original EC06KA158 JRM/IEL 1 EC09KA061 EC09KA061F CDP/IEL 2 EC09KA061F DB/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 Li mits Engine Manual(s), Chapter/Section 05-10-00, Revision 94, dated January 1, 201 1 is scheduled to incorporate the Part Service Life Limits related to this Service Bulletin and will take precedence over the Service Bulletin.



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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 94 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.Revision to T able of Li mits l ife cycles is as f ol lows: Model Part Number Part Name Life Limit (cycles) PW4052(-3), PW4056(-3), PW4152(-3) 55L1 1 1 HUB
— ASSY OF, TURB, FR 20,000 PW4060(-3), PW4062(-3), PW4062A(-3), PW4156A(-3), PW4158(-3), PW4460(-3), PW4462(-3) 55L1 1 1 HUB
— ASSY OF, TURB, FR 15,000



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# PW4ENG 72-795 REVISION NO. 2 - April 5/1 1 Page 95 UTC/P&W PROPRIET AR Y INFORMA TION Subject to the restrictions on the cover or first page.