ALERT SERVICE BULLETIN

ENGINE — DISK ASSEMBLY, DRUM ROTOR, HIGH PRESSURE COMPRESSOR (HPC) — EDDY

CURRENT AND ULTRASONIC INSPECTION OF THE 10TH STAGE DISK FOR CRACKS

MODEL APPLICATION

PW4052, PW4052(-3), PW4056, PW4056(-3), PW4060, PW4060(-3), PW4062(-3),

PW4062A(-3), PW4152, PW4152(-3), PW4156A, PW4156A(-3), PW4158, PW4158(-3),

PW4460, PW4460(-3), PW4462, PW4462(-3)

BULLETIN ISSUE SEQUENCE

PW4000 Series A72-833

ATA NUMBER

72-35-00

UTC/P&W PROPRIETARY INFORMATION

This document is the property of United Technologies Corporation — Pratt & Whitney (UTC/P&W). You 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 FAA or other government approval to do so, without UTC/P&W’s express written

permission. Neither receipt nor possession of this document alone, from any source, constitutes such permission.

Possession, use, copying or disclosure by anyone without UTC/P&W’s express written permission is not authorized

and may result in criminal and/or civil liability.

Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).

Compliance Category

5, 6

P&W Distribution Code

2616

August 20/15

PW4ENG A72-833

Page 1 of 29

Published in United States of America
Summary

The purpose of this Alert Service Bulletin is to provide instructions to do a repetitive inspection of the

10th stage disk web of the High Pressure Compressor (HPC) front drum rotor disk assembly for

cracks. A list of suspect 10th stage disk part numbers is included in Appendix A, Tables 1 and 2. A

Non-Destructive Inspection Procedure (NDIP) for either an Eddy Current Inspection (ECI) (Part A) or

Ultrasonic Inspection (UTI) (Part B) must be accomplished at engine disassembly.

Planning Information

Effectivity Data

Engine Models Applicable

PW4052, PW4052 (-3), PW4056, PW4056 (-3), PW4060, PW4060 (-3), PW4062 (-3),

PW4062A (-3)

Engine Serial No. — All engines with the suspect 10th stage disk serial numbers as

specified in Appendix A, Tables 1 and 2.

PW4152, PW4152 (-3), PW4156A, PW4156A (-3), PW4158, PW4158(-3)

Engine Serial No. — All engines with the suspect 10th stage disk serial numbers as

specified in Appendix A, Tables 1 and 2.

PW4460, PW4460 (-3), PW4462, PW4462 (-3)

Engine Serial No. — All engines with the suspect 10th stage disk serial numbers as

specified in Appendix A, Tables 1 and 2.

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 suffix as follows:

(-3A) configuration introduced by SB No. PW4ENG 72-588.

(-3A) configuration introduced by SB No. PW4ENG 73-150.

(-3B) configuration introduced by SB No. PW4ENG 72-512.

(-1C) configuration introduced by SB No. PW4ENG 72-499 or No. PW4ENG 72-520.

(-1E) configuration introduced by SB No. PW4ENG 72-521.

(-1C/-1E) configuration introduced by SB No. PW4ENG 72-516.

Concurrent Requirements

There are no concurrent requirements.

Reason

1. Problem: During HPC overhaul of a PW4056, a crack measuring approximately

20 inches (508 mm) in length was found in the 10th stage disk web of the front

drum rotor disk assembly. The 10th stage disk crack was due to Low Cycle Fatigue

(LCF) that initiated from surface scratches. The same configuration is used in

PW4170 engines and engines that incorporate Reference 5, Service Bulletin No.

PW4G-100-72-220.

2. Cause: The root cause of the LCF crack was a manual polishing procedure that was,

at one time, performed at the manufacturing stage and caused surface scratches

on the part. The suspect population for the PW4000-94 series engine models is

as follows:

August 20/15

PW4ENG A72-833

Page 2

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).
A. All 10th stage disks produced from 1985 through January 1999.

B. Disks from January 1999 through 2002 that had manual polish accomplished

during manufacture.

3. Solution: Do a repetitive non-destructive inspection of the suspect 10th stage disk

as specified in Appendix A, Tables 1 and 2 for cracks.

A. Part A — ECI as specified in Reference 20, NDIP-1155 at every HPC overhaul.

B. Part B — UTI as specified in Reference 19, NDIP-1154 at every High Pressure

Turbine (HPT) or Low Pressure Turbine (LPT) removal.

(1) Remove any 10th stage disk from service that does not meet the acceptance

criteria as specified in the inspection procedures above.

Description

Do an inspection of the suspect 10th stage disk of the HPC front drum rotor disk assembly

for cracks.

Compliance

Part A:

Category 6

Do when the subassembly (e.g. modules, accessories, components, build groups) is

disassembled sufficiently to give access to the changed part and to all changed spare parts.

Part B:

Category 5

Do when the engine is disassembled sufficiently to give access to the changed

subassembly (i.e., module, accessories, components, build groups) and to all changed

spare subassemblies.

Approval Data

The times between inspections specified in Compliance and the inspection procedures

specified in the Accomplishment Instructions agree with the applicable Federal Aviation

Regulations and are FAA-Approved for the engine model(s) given.

The aircraft Type Certificate holders have been informed of this inspection.

Manpower

The estimate of man-hours of labor directly necessary to do the intent of this Service

Bulletin are as follows:

1. Necessary to do the ECI (Part A)........................................................................ 4.0

2. Necessary to do the UTI (Part B)........................................................................ 8.0

Weight Data

No Change.

Electrical Load Data

Not Applicable.

August 20/15

PW4ENG A72-833

Page 3

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).
Software Accomplishment Summary

Not Applicable.

References

1. Turbojet Engine Standard Practices Manual, Part No. 585005.

2. PW4052, PW4052(-3), PW4056, PW4056(-3), PW4060, PW4060(-3), PW4060C,

PW4062(-3), PW4062A(-3) Turbofan Engines, Illustrated Parts Catalog, Part No. 50A607.

3. PW4152, PW4152(-3), PW4156A, PW4156A(-3), PW4158, PW4158(-3) Turbofan Engines,

Illustrated Parts Catalog, Part No. 50A445.

4. PW4460, PW4460(-3), PW4462, PW4462(-3) Turbofan Engines, Illustrated Parts Catalog,

Part No. 50A824.

5. PW4052, PW4052(-3), PW4056, PW4056(-3), PW4060, PW4060(-3), PW4060C,

PW4060C(-3), PW4062, PW4062A(-3) Turbofan Engines, Engine Manual, Part No.

50A605.

6. PW4152, PW4152(-3), PW4156A, PW4156A(-3), PW4158, PW4158(-3) Turbofan Engines,

Engine Manual, Part No. 50A443.

7. PW4460, PW4460(-3), PW4462, PW4462(-3) Turbofan Engines, Engine Manual, Part

No. 50A822.

8. PW4000 Series 94 Inch And 100 Inch Turbofan Engines, Engine Cleaning, Inspection And

Repair (CIR) Manual, Part No. 51A357.

9. Service Bulletin No. PW4ENG 72-490; Engine — Conversion Of A PW4460 Or PW4462

To A PW4460(-3) Or PW4462(-3). Issue Sequence 72-490, PW4000 Series.

10. Service Bulletin No. PW4ENG 72-499; Engine — Blade Set, First Stage LPC — Allow

Installation Of The FB2C First Stage LPC Blade Sets In Non-Phase 3 Engines To Create

The (-1C) Engine Configuration. Issue Sequence 72-499, PW4000 Series.

11. Service Bulletin No. PW4ENG 72-504; Engine — Conversion OF A PW4052, PW4056,

PW4060, To A PW4052(-3), PW4056(-3), Or PW4060(-3). Issue Sequence 72-504,

PW4000 Series.

12. Service Bulletin No. PW4ENG 72-512; Engine — Blade Set, First Stage LPC — Allow

Installation Of The FB2B First Stage LPC Blade Sets In Phase 3 Engines To Create The

(-3B) Engine Configuration. Issue Sequence 72-512, PW4000 Series.

13. Service Bulletin No. PW4ENG 72-516; Engine — Blade Set, First Stage LPC — Allow

Installation Of The FB2C First Stage LPC Blade Sets In Pre-Phase 3 Engines To Create

The (-1C/-1E) Engine Configuration. Issue Sequence 72-516, PW4000 Series.

14. Service Bulletin No. PW4ENG 72-520; Engine — Blade Set, First Stage LPC — Allow The

FB2C First Stage LPC Blade Sets In Non-Phase 3 Engines To Create The (-1C) Engine

Configuration (Installation Of Phase 3 Blades In Pre-Phase 3 Engine/Nacelle). Issue

Sequence 72-520, PW4000 Series.

15. Service Bulletin No. PW4ENG 72-521; Engine — Blade Set, First Stage LPC — Allow The

FB2C First Stage LPC Blade Sets In Non-Phase 3 Engines To Create The (-1E) Engine

Configuration (Installation Of Phase 3 Blades In Pre-Phase 3 Engine/ Phase 3 Nacelle).

Issue Sequence 72-521, PW4000 Series.

August 20/15

PW4ENG A72-833

Page 4

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).
16. Service Bulletin No. PW4ENG 72-572; Engine — Conversion Of A PW4152, PW4156A,

PW4158 Engine To A PW4152(-3), PW4156A(-3), Or PW4158(-3) Engine. Issue Sequence

72-572, PW4000 Series.

17. Service Bulletin No. PW4ENG 72-588; Engine — Reidentification Of Engine Model Phase

(-3) To (-3A) For Installation In A Pre-Phase (-3) Nacelle. Issue Sequence 72-588,

PW4000 Series.

18. Service Bulletin No. PW4ENG 73-150; Engine Fuel And Control — Plug, EEC

Programming — Installation Of To Create The (-3A) Engine Configuration. Issue Sequence

73-150, PW4000 Series.

19. NDIP-1154, PW4000 High Pressure Compressor (HPC) Drum Rotor 10th Stage Disk Web

Ultrasonic Inspection (Module/Full HPC Drum Level).

20. NDIP-1155, PW4000 High Pressure Turbine FWD Drum, 10th Stage Semi-Automated

Eddy Current Inspection (Disassembled Component).

NOTE: References 9 thru 18 are shown to help find non-production configurations that

may incorporate this bulletin.

Publications Changed

1. PW4052, PW4052(-3), PW4056, PW4056(-3), PW4060, PW4060(-3), PW4060C,

PW4062(-3), PW4062A(-3) Turbofan Engines, Illustrated Parts Catalog, Part No. 50A607,

Chapter/Section 72-35-00.

2. PW4152, PW4152(-3), PW4156A, PW4156A(-3), PW4158, PW4158(-3) Turbofan Engines,

Illustrated Parts Catalog, Part No. 50A445., Chapter/Section 72-35-00.

3. PW4460, PW4460(-3), PW4462, PW4462(-3) Turbofan Engines, Illustrated Parts Catalog,

Part No. 50A824, Chapter/Section 72-35-00.

Interchangeability

Not Applicable.

Information in the Appendix

Alternate Accomplishment Instructions (No)

Progression Charts (No)

Added Data (Yes)

Revision to Table of Limits (No)

Inspection Procedures (No)

August 20/15

PW4ENG A72-833

Page 5

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).
Material Information

Material — Cost and Availability

1. There is no kit provided to do this Service Bulletin.

2. Part availability information is provided in material data Instructions — Disposition.

Industry Support Program

Not Applicable.

The material data that follows is for each engine.

NOTE: It is possible to use the Chapter/Section and Figure/Item reference number

shown below the old part number to find the part in the Illustrated Parts Catalog.

Because there are many different 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 differently.

CAUTION: THE FOLLOWING MATERIAL DATA TABLE(S) ARE ORGANIZED BY

ILLUSTRATED PARTS CATALOG. ALL PARTS IN THE TABLE(S) MAY OR

MAY NOT BE APPLICABLE TO ALL THE ENGINE MODELS SHOWN

IN THE TABLE HEADING. YOU MUST REFER TO THE APPROPRIATE

ILLUSTRATED PARTS CATALOG FOR ENGINE MODEL APPLICABILITY

USING THE OLD PART NUMBER (PN) AND CATALOG SEQUENCE

NUMBER. FAILURE TO INSTALL THE PART(S) IN THE CORRECT

ENGINE MODEL MAY RESULT IN A CONFIGURATION THAT IS NOT FAA

APPROVED.

The material data that follows is for each engine.

For PW4052, PW4052(-3), PW4056, PW4056(-3), PW4060, PW4060(-3), PW4062(-3),

PW4062A(-3) Engines:

New PN Qty Estimate of Unit

Price ($)

Keyword Old PN Instructions —

Disposition

1 DISK — ASSY

OF, DRUM

ROTOR

51H426-01

(72-35-00-1-150 A)

(4)(X)

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

52H559-01

(72-35-00-1-150AA)

(4)(X)

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

52H559-101

(72-35-00-1-150AG)

(4)(X)

August 20/15

PW4ENG A72-833

Page 6

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).
New PN Qty Estimate of Unit

Price ($)

Keyword Old PN Instructions —

Disposition

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

52H926-01

(72-35-00-1-150 B)

(4)(X)

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

52H926-101

(72-35-00-1-150AF)

(4)(X)

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

53H676-01

(72-35-00-1-150 C)

(4)(X)

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

53H676-101

(72-35-00-1-150AE)

(4)(X)

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

54H626-01

(72-35-00-1-150 D)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

54H626-101

(72-35-00-1-150AD)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

August 20/15

PW4ENG A72-833

Page 7

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).
New PN Qty Estimate of Unit

Price ($)

Keyword Old PN Instructions —

Disposition

OR

1 DISK — ASSY

OF, DRUM

ROTOR

54H816-01

(72-35-00-1-150 E)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

54H816-101

(72-35-00-1-150AC)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

55H106-01

(72-35-00-1-150 F)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

55H106-101

(72-35-00-1-150AB)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

50S106-01

(72-35-00-1-150 G)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

The material data that follows is for each engine.

For PW4152, PW4152(-3), PW4156A, PW4156A(-3), PW4158, PW4158(-3) Engines:

New PN Qty Estimate of Unit

Price ($)

Keyword Old PN Instructions —

Disposition

1 DISK — ASSY

OF, DRUM

ROTOR

51H426-01

(72-35-00-1-150 A)

(4)(X)

August 20/15

PW4ENG A72-833

Page 8

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).
New PN Qty Estimate of Unit

Price ($)

Keyword Old PN Instructions —

Disposition

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

52H559-01

(72-35-00-1-150AA)

(4)(X)

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

52H559-101

(72-35-00-1-150AG)

(4)(X)

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

52H926-01

(72-35-00-1-150 B)

(4)(X)

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

52H926-101

(72-35-00-1-150AF)

(4)(X)

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

53H676-01

(72-35-00-1-150 C)

(4)(X)

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

53H676-101

(72-35-00-1-150AE)

(4)(X)

1 .DISK — 10TH

STAGE

51H710 (4)(X)

August 20/15

PW4ENG A72-833

Page 9

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).
New PN Qty Estimate of Unit

Price ($)

Keyword Old PN Instructions —

Disposition

OR

1 DISK — ASSY

OF, DRUM

ROTOR

54H626-01

(72-35-00-1-150 D)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

54H626-101

(72-35-00-1-150AD)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

54H816-01

(72-35-00-1-150 E)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

54H816-101

(72-35-00-1-150AC)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

55H106-01

(72-35-00-1-150 F)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

55H106-101

(72-35-00-1-150AB)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

OR

August 20/15

PW4ENG A72-833

Page 10

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).
New PN Qty Estimate of Unit

Price ($)

Keyword Old PN Instructions —

Disposition

1 DISK — ASSY

OF, DRUM

ROTOR

50S106-01

(72-35-00-1-150 G)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

The material data that follows is for each engine.

For PW4460, PW4460(-3), PW4462, PW4462(-3) Engines:

New PN Qty Estimate of Unit

Price ($)

Keyword Old PN Instructions —

Disposition

1 DISK — ASSY

OF, DRUM

ROTOR

51H426-01

(72-35-00-1-150)

(4)(X)

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

52H926-01

(72-35-00-1-150 A)

(4)(X)

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

52H926-101

(72-35-00-1-150AE)

(4)(X)

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

53H676-01

(72-35-00-1-150 B)

(4)(X)

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

53H676-101

(72-35-00-1-150AD)

(4)(X)

August 20/15

PW4ENG A72-833

Page 11

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).
New PN Qty Estimate of Unit

Price ($)

Keyword Old PN Instructions —

Disposition

1 .DISK — 10TH

STAGE

51H710 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

54H626-01

(72-35-00-1-150 C)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

54H626-101

(72-35-00-1-150AC)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

54H816-01

(72-35-00-1-150 D)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

54H816-101

(72-35-00-1-150AB)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

55H106-01

(72-35-00-1-150 E)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

OR

1 DISK — ASSY

OF, DRUM

ROTOR

55H106-101

(72-35-00-1-150AA)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

August 20/15

PW4ENG A72-833

Page 12

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).
New PN Qty Estimate of Unit

Price ($)

Keyword Old PN Instructions —

Disposition

OR

1 DISK — ASSY

OF, DRUM

ROTOR

50S106-01

(72-35-00-1-150 F)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06 (4)(X)

Modification and Spares Information

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

(4) Do an inspection as specified in the Accomplishment Instructions.

Spare Parts Availability

(X) See Reference 2, 3, or 4, Illustrated Parts Catalog for applicable replacement

parts.

Vendor Services or Special Components/Materials

Not Applicable.

Material Data for Each Spare Engine

The material for each spare engine is as stated in the preceding material information

section.

Reidentified Parts

Not Applicable.

August 20/15

PW4ENG A72-833

Page 13

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).
Necessary Tools

There are tool kit numbers PWA 86684 (Ultrasonic) and PWA 86686 (Eddy Current) to

do this Alert Service Bulletin. Contact your Pratt & Whitney Tool Support Services sales

manager directly or by e-mail to pwtools@pw.utc.com for assistance with new PWA tool

kits and calibrations.

New Support Equipment that is necessary

Kit Number Nomenclature Units Per Engine

PWA 86684 Ultrasonic Inspection Kit 1

PWA 86686 Eddy Current Inspection Kit 1

NOTE: * Detail tool listing for UTI is found in Reference 19, NDIP1154.

NOTE: * Detail tool listing for ECI is found in Reference 20, NDIP1155.

NOTE: All queries regarding necessary support equipment and borescope equipment

equivalency can be directed to Pratt & Whitney Non Destructive Evaluation

(NDE) through the MS Dynamics system or Pratt & Whitney Global Operations

Center (24 hour help desk).

Other Material Information Data

Not Applicable.

August 20/15

PW4ENG A72-833

Page 14

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).
Accomplishment Instructions

Part A: EDDY CURRENT INSPECTION (ECI)

1. Do the ECI procedure as specified in Reference 20, NDIP-1155 on the suspect 10th Stage

Disk, PN 51H710 or PN 53H976-06 as specified in Appendix A, Tables 1 and 2 and inspect

for cracks. See Figure 1, Sheets 1 and 2.

NOTE: To obtain a copy of the ECI procedure as specified in the Reference 20,

NDIP-1155 please contact Pratt & Whitney Non Destructive Evaluation (NDE)

through the MS Dynamics system or Pratt & Whitney Global Operations Center

(24 hour help desk).

2. Acceptance/Rejection criteria has been provided in the ECI procedure as specified in the

Reference 20, NDIP-1155.

3. Rejected 10th Stage Disk, PN 51H710 or PN 53H976-06 must be removed from service

and may be replaced as specified in Reference 8, CIR Manual, Chapter/Section 72-35-07,

Repair-04.

Part B: ULTRASONIC INSPECTION (UTI)

1. During HPT or LPT removal, do the procedure that follows:

A. Remove the LPT as specified in Reference 5, 6 or 7, Engine Manual, Chapter/Section

72-00-53, Removal-01.

NOTE: UTI can be accomplished with removal of LPT only.

NOTE: HPT nut lock needs to be removed if accomplishing the inspection without

HPT removal.

B. Remove the external plumbing before HPT removal as specified in Reference 5, 6

or 7, Engine Manual, Chapter/Section 72-00-52, Removal-02.

C. Remove the HPT as specified in Reference 5, 6 or 7, Engine Manual, Chapter/Section

72-00-52, Removal-01.

D. Do the UTI procedure as specified in Reference 19, NDIP-1154 on the suspect 10th

Stage Disk, PN 51H710 or PN 53H976-06 as specified in Appendix A, Tables 1 and 2

and inspect for cracks. See Figure 1, Sheets 1 and 2.

NOTE: To obtain a copy of the UTI procedure as specified in Reference 19,

NDIP-1154 please contact Pratt & Whitney Non Destructive Evaluation

(NDE) through the MS Dynamics system or Pratt & Whitney Global

Operations Center (24 hour help desk).

E. Acceptance/Rejection criteria has been provided in the UTI procedure as specified in

Reference 19, NDIP-1154.

F. Rejected 10th Stage Disk, PN 51H710 or PN 53H976-06 must be removed

from service and may be replaced as specified in Reference 8, CIR Manual,

Chapter/Section 72-35-07, Repair-04.

NOTE: Operators may choose to inspect the 10th Stage Disk, PN 51H710 or

PN 53H976-06 per ECI procedure as specified in Reference 20, NDIP-1155

following a part rejection via UTI procedure as specified in Reference 19,

NDIP-1154 to confirm part rejection.

August 20/15

PW4ENG A72-833

Page 15

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).
LOCATION OF THE DRUM ROTOR DISK ASSEMBLY

72-35-00

FIGURE 1, SHEET 1

August 20/15

PW4ENG A72-833

Page 16

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).
INSPECTION OF THE 10TH STAGE DISK

FIGURE 1, SHEET 2

August 20/15

PW4ENG A72-833

Page 17

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).
Appendix

Added Data

Internal Reference Information

Revision No.

Reference

Document

Origination

Original EA14KC489A KG/IEL

Number values shown in parentheses adjacent to U.S. values are International System of

units (SI) equivalents.

Appendix A

Table 1 — Serial Numbers for 10th Stage Disk, PN 51H710

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

T42515 CENCAH0434 CENCAH0468 CENCAH5530 CENCAJ1927 CENCAJ6796

T67792 CENCAH0427 CENCAH0461 CENCAH5536 CENCAJ1931 CENCAJ6797

T66593 CENCAH0432 CENCAH0458 CENCAH5533 CENCAJ1910 CENCAJ6799

T66592 C210AA0094 CENCAH0473 CENCAH5538 CENCAJ1920 CENCAK1732

T67788 CENCAH0431 CENCAH0470 CENCAH5534 CENCAJ1922 CENCAJ6801

T67781 C210AA0097 CENCAH0467 CENCAH5542 CENCAJ1932 CENCAJ6808

R55154 CENCAH0425 CENCAH0466 CENCAH5541 CENCAJ1921 CENCAJ6802

CENCAU9852 CENCAH0448 CENCAH0474 CENCAH5547 CENCAJ1930 CENCAJ6805

CENCBC7512 CENCAH0438 CENCAH0471 CENCAH5543 CENCAJ1923 CENCAJ6809

CENCAS2038 CENCAH0439 CENCAH0472 CENCAH5548 CENCAJ1926 CENCAJ6806

N48859 CENCAH0441 CENCAH5514 CENCAH5549 CENCAJ1933 CENCAJ6804

N31797 CENCAH0440 CENCAH5509 CENCAH5544 CENCAJ1946 CENCAJ6803

N48855 CENCAH0445 CENCAH5508 CENCAH5553 CENCAJ1934 CENCAJ6807

N31800 CENCAH0435 CENCAH5510 CENCAH5537 CENCAJ1937 CENCAJ6798

C210AA0091 CENCAH0447 CENCAH0469 CENCAH5551 CENCAJ1936 CENCAK1689

C210AA0066 CENCAH0436 CENCAH5518 CENCAH5535 CENCAJ1939 CENCAJ6810

C210AA0083 CENCAH0446 CENCAH5516 CENCAH5546 CENCAJ1935 CENCAJ6813

C210AA0073 CENCAH0450 CENCAH5520 CENCAH5555 CENCAJ1944 CENCAK1695

C210AA0081 CENCAH0433 CENCAH5512 CENCAH5556 CENCAJ1941 CENCAK1696

C210AA0086 CENCAH0430 CENCAH5517 CENCAH5550 CENCAJ1943 CENCAK1692

C210AA0088 CENCAH0443 CENCAH5522 CENCAH5557 CENCAJ1945 CENCAJ6811

August 20/15

PW4ENG A72-833

Page 18

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).
SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

C210AA0087 CENCAH0449 CENCAH5511 CENCAH5552 CENCAJ1947 CENCAK1690

C210AA0095 CENCAH0442 CENCAH5526 CENCAH5554 CENCAJ1949 CENCAK1691

C210AA0089 CENCAH0437 CENCAH5519 CENCAJ1914 CENCAJ1928 CENCAK1687

C210AA0082 CENCAH0452 CENCAH5521 CENCAJ1913 CENCAJ1954 CENCAJ6812

C210AA0084 CENCAH0463 CENCAH5525 CENCAJ1916 CENCAJ1953 CENCAK1688

C210AA0096 CENCAH0455 CENCAH5524 CENCAJ1912 CENCAJ1950 CENCAK1697

C210AA0085 CENCAH0456 CENCAH5515 CENCAJ1907 CENCAJ1948 CENCAK1701

C210AA0098 CENCAH0444 CENCAH5523 CENCAJ1915 CENCAJ1938 CENCAK1694

C210AA0100 CENCAH0453 CENCAH5513 CENCAJ1919 CENCAJ1955 CENCAK1700

C210AA0080 CENCAH0451 CENCAH5532 CENCAJ1917 CENCAJ6795 CENCAK1699

C210AA0099 CENCAH0460 CENCAH5528 CENCAJ1908 CENCAJ6794 CENCAK1706

C210AA0090 CENCAH0459 CENCAH5531 CENCAJ1918 CENCAJ1952 CENCAK1705

C210AA0092 CENCAH0464 CENCAH5527 CENCAJ1909 CENCAJ1951 CENCAK1703

CENCAH0428 CENCAH0457 CENCAH5529 CENCAJ1929 CENCAJ1942 CENCAK1707

CENCAH0429 CENCAH0462 CENCAH5540 CENCAJ1924 CENCAJ1956 CENCAK1708

CENCAH0426 CENCAH0454 CENCAH5545 CENCAJ1911 CENCAJ1940 CENCAK1715

CENCAK1716 CENCAL0365 T83104 T83145 C210AA0030 C210AA0068

CENCAK1714 CENCAL0364 T83106 T83155 C210AA0031 C210AA0063

CENCAK1718 CENCAL0373 T83113 T83134 C210AA0037 C210AA0071

CENCAK1719 CENCAL0372 T83124 T83152 C210AA0036 C210AA0076

CENCAK1711 CENCAL0375 T83121 T83150 C210AA0033 C210AA0078

CENCAK1717 CENCAL0378 T83125 T83153 C210AA0039 C210AA0070

CENCAK1731 CENCAL0381 T83114 T83160 C210AA0038 C210AA0077

CENCAK1712 CENCAL0371 T83115 C210AA0001 C210AA0032 C210AA0072

CENCAK1710 CENCAL0374 T83129 T83161 C210AA0013 C210AA0075

CENCAK1730 CENCAL0380 T83117 C210AA0009 C210AA0028 C210AA0079

CENCAK1713 CENCAL0379 T83119 T83159 C210AA0023 C210AA0069

CENCAK1709 CENCAL0377 T83122 C210AA0015 C210AA0029 C210AA0065

CENCAL0349 CENCAL0382 T83116 C210AA0016 C210AA0046 T67794

CENCAK1734 CENCAL0385 T83126 C210AA0004 C210AA0047 T67786

CENCAK1733 CENCAL0383 T83120 T83157 C210AA0040 T67774

CENCAK1729 CENCAL0384 T83138 T83158 C210AA0043 T67773

August 20/15

PW4ENG A72-833

Page 19

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).
SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

CENCAK1735 CENCAL0390 T83128 T83137 C210AA0045 T67796

CENCAL0354 CENCAP9815 T83143 C210AA0005 C210AA0052 T67793

CENCAL0350 CENCAL0388 T83141 C210AA0003 C210AA0048 T67795

CENCAK1736 CENCAL0391 T83133 C210AA0007 C210AA0044 T67797

CENCAL0352 CENCAS2034 C210AA0002 T83136 C210AA0057 T67779

CENCAL0351 CENCAS2032 T83130 C210AA0006 C210AA0042 T67808

CENCAL0356 CENCAS2033 T83118 C210AA0012 C210AA0053 T67739

CENCAL0353 CENCAS2031 T83131 C210AA0018 C210AA0054 T67772

CENCAL0359 CENCAS2036 T83100 C210AA0008 C210AA0055 T67798

CENCAL0358 CENCAS2037 T83127 C210AA0010 C210AA0041 T67805

CENCAL0355 CENCAS2035 T83149 C210AA0011 C210AA0049 T67809

CENCAL0357 CENCAS2039 T83135 C210AA0024 C210AA0051 T67780

CENCAL0360 CENCAW0889 T83132 C210AA0014 C210AA0050 T67802

CENCAL0368 CENCAW0890 T83148 C210AA0020 C210AA0058 T67803

CENCAL0367 CENCAW0891 T83142 C210AA0017 C210AA0056 T67783

CENCAL0361 CENCAW0894 T83144 C210AA0021 C210AA0059 T67818

CENCAL0363 CENCAW0893 T83140 C210AA0019 C210AA0061 T67811

CENCAL0362 CENCAW0896 T83147 C210AA0025 C210AA0060 T67800

CENCAL0366 CENCAW0895 T83154 C210AA0022 C210AA0074 T67815

CENCAL0370 CENCAW0897 T83146 C210AA0027 C210AA0062 T67799

CENCAL0369 CENCBC7495 T83139 C210AA0026 C210AA0067 T67817

T67807 P03259 P03262 P55839 R17048 R38473

T67812 P03260 P03246 P55837 R17032 R44572

T67814 P03263 P55804 P55841 R17038 R38467

T67816 N31802 N48863 P55808 R17019 R38460

T67821 P03261 P55803 P55842 R17054 R38474

T67801 P03258 P55800 P55838 R17021 T83156

T67819 N31790 P03294 P55840 R17042 R44575

T67826 P03282 P03270 P55845 R17037 R38476

T67825 P03273 P03271 M53708 R55127 R38477

T67813 P03284 P03281 P55821 R17023 R44573

T67823 N31793 P03288 M53704 R17035 R44568

August 20/15

PW4ENG A72-833

Page 20

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).
SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

T67822 P03257 P55824 P55849 R17052 R38459

T67824 N48865 P55816 R17014 R17039 R44576

T67820 P03248 P03293 P55818 R17051 R44569

T67810 P03256 P03279 P55835 R17050 R38465

T83099 P03269 P03252 P55836 R17036 R44571

T67830 P03274 P55832 P55844 R17041 R38469

T83101 P03292 P55807 M53705 R17044 R38468

T83102 N31792 P55828 M53706 R17047 R38472

T67834 P03253 P55814 M53707 R17049 R44582

T67836 N31789 P55815 P55831 R38457 R44594

T67828 P03265 P55830 R17015 R38461 R55123

T67837 P03264 P55820 R17029 R38454 R55125

T67833 P03283 P55829 R17012 R17034 R44591

T83110 P03278 P55822 R17018 R17043 R44577

T67831 P03266 P55823 P55809 R38456 R44583

T67776 N48858 P55827 R17016 R17055 R55129

T67835 N48869 P55810 R17011 R38458 R44596

T67832 P03291 P03290 R17009 R38464 R44586

T83112 P03286 P55811 R17028 R17057 R44587

T83105 P55833 P55817 P55846 R38463 R44578

T83111 P03285 P55812 R17027 R38453 R55124

T83108 P55802 P55813 P55847 R17040 R38475

T83107 P03287 P55806 R17033 R38462 R55128

P03268 P03272 P03276 R17045 R38455 R44580

N31796 P03289 P55801 R17010 R17053 R44579

N31798 N48871 P55843 P55848 R17056 R44585

R55126 R79019 R79038 R79084 S08667 S24131

R44588 R55151 R79026 R79085 S08677 S24139

R44595 R55149 R79044 R79083 S08673 S08657

R44590 R79020 R79040 R79059 S08668 S24145

R44592 R79018 R79041 R79055 S08650 S08703

R44593 R55135 R79043 R79065 R79089 S08658

August 20/15

PW4ENG A72-833

Page 21

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).
SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

R55130 R17017 R79035 R79069 S08666 S24137

P55834 R79032 R79048 R79051 S08681 S08687

R44584 R55133 R79039 R79064 S08634 S24155

R38466 R55131 R55162 R79056 S08629 S24157

R44581 R79034 R79042 R79082 S08682 S24156

R44574 R79022 R79037 S08665 S08669 S08692

R44597 R55153 R79060 S08644 S08684 S24135

R44589 R79027 R79071 S08639 S08641 S24150

R79024 R79029 R79050 S08630 S08680 S24134

R55158 R79031 R79052 S08643 S08631 S24141

R55168 R79028 R79057 S08656 S08676 S24143

R55161 R79033 R79054 R79087 S08697 S24154

R55157 R55144 R79058 S08661 S08699 S24133

R79023 R55166 R79047 S08655 S08640 S24152

R55138 R55156 R79063 S08663 S08647 S24144

R55142 R79021 R79073 R79088 S08654 S24172

R55140 R55145 R79076 S08645 S08702 S24147

S24193 R55150 R79061 S08670 S08679 S24160

R55132 R55159 R79062 S08674 S08696 R79070

R55148 R55139 T83151 S08636 S08686 S08695

R55167 R55169 R79086 S08642 S08659 S08683

R55163 R55170 R79078 S08633 S08649 S24167

R55165 R55172 R79072 S08675 S08701 S08685

R55160 R55134 R79049 R79090 S08632 S08678

R55152 R55155 R79077 S08662 S08664 S08700

R55171 R55136 R79067 S08660 S24132 S08689

R55146 R55143 R79079 S08637 S08648 S24138

R55137 R79053 R79036 S08671 S24148 S24174

R79017 R79066 R79068 S08635 S24136 S24153

R55164 R79074 R79080 S08672 S08688 S24170

R55141 R79075 S08638 S08652 S08646 S24164

S24169 S24180 S47564 S47539 S91199 S91228

August 20/15

PW4ENG A72-833

Page 22

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).
SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

S24165 S24194 S47571 S47565 S47586 S91215

S24162 S24179 S47556 S47551 S91197 S91212

S24173 S24183 S47563 S47584 S91195 S47587

S24151 S24192 S47557 S47583 S91192 S91226

S24161 S24190 S47552 S47592 S91200 S91239

S08690 S47516 S47567 S47580 S47602 S91221

S24158 S24197 S47553 S47582 S91191 S91189

S24149 S24191 S47554 S47577 S91220 S91235

S24159 S24178 S47541 S47569 S91231 S91243

S24163 R79091 S47529 S47596 S91217 S91230

S24166 S24176 S47536 S47589 S91219 S91237

S08698 S24187 S47532 S47566 S91233 S91244

S24168 S47518 S47526 S47593 S91224 S91236

S24205 S24202 S47531 S47599 S91218 S91241

S08693 S24188 S47568 S47573 S47603 S91242

S24201 S47511 S47537 S47597 S91213 S91245

S47513 S24177 S47570 S47595 S91214 S91238

S47510 S47505 S47559 S47598 S91216 S91267

S24184 S24195 S47561 S47588 S91201 S91277

S24199 S47508 S47572 S47578 S91223 S91258

S47515 S47521 S47545 S47574 S91203 S91246

S24140 S24189 S47549 S47575 S91208 S91240

S24203 S24182 S08691 S47600 S91211 S91247

S24171 S47523 S47560 S47591 S91206 S91268

S24204 S24198 S47562 S47579 S91234 S91274

S47512 S24196 S47540 S47590 S91205 S91253

S47504 S47506 S08694 S47581 S91209 S91252

S47509 S47527 S47544 S47576 S91202 S91270

S47517 S24200 S47558 S47543 S91225 S91269

S47514 S47519 S47542 S91194 S91207 S91251

S47520 S24186 S47538 S91196 S91232 S91248

S47507 S47534 S47550 S91193 R79081 S91262

August 20/15

PW4ENG A72-833

Page 23

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).
SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

S47525 S47522 S47555 S91190 S91227 S91266

S24185 S47530 S47546 S47601 S91229 S91271

S24181 S47533 S47548 S91198 S91210 S91263

S47524 S47528 S47547 S47585 S91222 S91275

S91282 T42427 T42445 T42470 T42498 T67715

S91273 T42434 T42457 T42496 T42536 T42538

S91259 T42429 T42472 T42492 T42522 T67714

S91283 S91292 T42471 T42451 T42531 T42541

S91254 S91302 T42448 T42486 T42535 T67730

S91256 T42421 S91313 T42458 T42520 T67724

S91278 S91306 T42473 T42488 T42526 T67732

S91279 T42422 T42476 T42489 T42525 T42539

S91272 S91308 T42443 T42441 T42518 T67729

S91284 S91301 T42484 T42494 T42524 T67728

S91276 T42420 T42454 T42503 T42527 T42543

S91261 S91307 T42479 T42512 T42537 T67727

S91280 S91291 T42439 T42490 T66591 T67734

S91257 S91304 T42449 T42517 T42533 T67745

S91249 T42426 T42478 T42499 T42519 T67731

S91264 S91303 T42477 T42511 T67841 T67755

S91255 S91260 T42459 T42497 T42523 T67746

T42425 S91296 T42463 T42495 T67838 T67747

S91289 S91300 T42453 T42485 T42528 T67749

S91281 T42433 T42483 T42487 T42510 T67765

S91250 T42438 T42455 T42513 T67713 T67760

S91293 S91309 T42464 T42500 T67840 T67758

S91265 T42436 T42442 T42514 T67718 T67761

S91285 S91310 T42447 T42516 T67717 T67751

S91298 S91290 T42475 T42521 T67839 T67756

S91299 S91312 T42462 T42507 T67719 T67769

S91286 S91295 T42466 T42501 T42544 T67748

T42430 S91294 T42481 T42504 T67844 T67754

August 20/15

PW4ENG A72-833

Page 24

UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).
SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

T42424 T42452 T42456 T42509 T67716 T67753

T42432 T42437 T42465 T42502 T42540 T67743

T42435 T42446 T42468 T42508 T67720 T67737

T42431 T42469 T42444 T42529 T67726 T67752

T42428 T42440 T42460 T42493 T42542 T67733

S91305 S91288 T42450 T42534 T67721 T67768

S91311 T42467 T42480 T42506 T67725 T67766

S91297 S91287 T42491 T42505 T67723 T67744

T42423 T42461 T42474 T42530 T67722 T67757

T67767 T67762 T67763 T67771 T67775 T67790

T67764 T67759 T67742 T67791 T67784 T67778

Table 2 — Serial Numbers for 10th Stage Disk, PN 53H976-06

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

CENCBA4504 CENCAH4233 CENCAK9741 CENCAM3124 CENCAM3157 CENCAN9248

CENCBE5829 CENCAH4239 CENCAH4253 CENCAM3126 CENCAM3150 CENCAN9253

CENCAT7228 CENCAH4237 CENCAK9745 CENCAM3123 CENCAM3143 CENCAP3363

C210AA0127 CENCAH4236 CENCAM3109 CENCAM3125 CENCAM3146 CENCAP3364

C210AA0126 CENCAH4229 CENCAH4259 CENCAM3133 CENCAM3169 CENCAN9258

CENCAH4213 CENCAH4240 CENCAK9740 CENCAM3132 CENCAM3158 CENCAP3362

CENCAH4212 CENCAH4235 CENCAK9747 CENCAM3137 CENCAM3166 CENCAN9259

CENCAH4211 CENCAH4238 CENCAK9748 CENCAM3135 CENCAM3173 CENCAP5120

CENCAH4216 CENCAH4244 CENCAM3110 CENCAM3139 CENCAN9241 CENCAP5122

CENCAH4214 CENCAH4243 CENCAK9743 CENCAM3131 CENCAM3172 CENCAP5121

CENCAH4219 CENCAH4247 CENCAK9746 CENCAM3136 CENCAM3171 CENCAP5128

CENCAH4218 CENCAH4249 CENCAK9749 CENCAM3141 CENCAM3175 CENCAN9251

CENCAH4215 CENCAH4250 CENCAK9744 CENCAM3144 CENCAM3176 CENCAP5124

CENCAH4217 CENCAH4241 CENCAM3112 CENCAM3138 CENCAN9242 CENCAN9257

CENCAH4221 CENCAH4245 CENCAM3114 CENCAM3122 CENCAN9246 CENCAN9256

CENCAH4222 CENCAH4242 CENCAM3116 CENCAM3142 CENCAM3177 CENCAP3365

CENCAH4220 CENCAH4246 CENCAM3111 CENCAM3145 CENCAN9243 CENCAP5127

CENCAH4227 CENCAH4248 CENCAM3115 CENCAM3148 CENCAN9245 CENCAP5126

August 20/15

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Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).
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NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

CENCAH4223 CENCAH4252 CENCAM3113 CENCAM3149 CENCAN9247 CENCAP5123

CENCAH4228 CENCAH4251 CENCAM3118 CENCAM3134 CENCAM3178 CENCAN9255

CENCAH4226 CENCAH4254 CENCAM3121 CENCAM3140 CENCAN9244 CENCAP5125

CENCAH4225 CENCAH4255 CENCAM3119 CENCAM3147 CENCAN9252 CENCAP5130

CENCAH4224 CENCAH4257 CENCAM3120 CENCAM3168 CENCAN9249 CENCAP5129

CENCAH4231 CENCAH4258 CENCAM3117 CENCAM3170 CENCAN9254 CENCAP5131

CENCAH4234 CENCAH4256 CENCAM3127 CENCAM3167 CENCAM3174 CENCAP5133

CENCAH4232 CENCAH4260 CENCAM3128 CENCAM3165 CENCAN9250 CENCAP5134

CENCAP5136 CENCAR4725 CENCAS3728 CENCAT0464 CENCAT7218 CENCAW0750

CENCAP5137 CENCAR4726 CENCAS3724 CENCAT0460 CENCAT7224 CENCAW0743

CENCAP5135 CENCAR6751 CENCAS3730 CENCAT0465 CENCAT7221 CENCAW0751

CENCAP5139 CENCAR6750 CENCAS3722 CENCAT0467 CENCAT7223 CENCAU5153

CENCAP5138 CENCAR6749 CENCAS3729 CENCAS6884 CENCAT0477 CENCAW0749

CENCAP9807 CENCAR6684 CENCAS3733 CENCAT0468 CENCAT7226 CENCAW0757

CENCAP9805 CENCAR6753 CENCAS3732 CENCAS6886 CENCAT7222 CENCAU5151

CENCAP9806 CENCAR6752 CENCAS3737 CENCAT0469 CENCAT7227 CENCAW0761

CENCAP9808 CENCAR6755 CENCAS3734 CENCAT0472 CENCAT7225 CENCAU5161

CENCAP9812 CENCAR6756 CENCAS3739 CENCAT0474 CENCAT7220 CENCAW0758

CENCAP9811 CENCAR6754 CENCAS3740 CENCAT0466 CENCAU3760 CENCAW7228

CENCAP9819 CENCAR6758 CENCAS3726 CENCAT0471 CENCAU3761 CENCAU5160

CENCAP9813 CENCAR6761 CENCAS3725 CENCAT0470 CENCAT7229 CENCAU5152

CENCAP9820 CENCAR6759 CENCAS3738 CENCAT0473 CENCAU5158 CENCAW0760

CENCAP9818 CENCAR6763 CENCAS3735 CENCAT5301 CENCAU5149 CENCAW7229

CENCAP9816 CENCAR6760 CENCAS3736 CENCAT5300 CENCAU5150 CENCAW7227

CENCAP9822 CENCAR6762 CENCAS6871 CENCAT0476 CENCAU5148 CENCAW0762

CENCAP9817 CENCAR9933 CENCAS6869 CENCAT7210 CENCAU5157 CENCAW7231

CENCAR4711 CENCAR9932 CENCAS6872 CENCAT5303 CENCAU5159 CENCAW7230

CENCAR4707 CENCAR6757 CENCAS6875 CENCAT7211 CENCAU5162 CENCAW7232

CENCAP9824 CENCAR9934 CENCAS6873 CENCAT5306 CENCAU5167 CENCAW7240

CENCAP9821 CENCAR9931 CENCAS6876 CENCAT7212 CENCAU5165 CENCAW7234

CENCAP9823 CENCAR9939 CENCAS6868 CENCAT5305 CENCAU8318 CENCAW7235

CENCAR4712 CENCAR9935 CENCAS6870 CENCAT5309 CENCAU5163 CENCAW7238

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UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).
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NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

CENCAR4708 CENCAR9938 CENCAS6878 CENCAT5308 CENCAU5164 CENCAW7237

CENCAR4710 CENCAR9936 CENCAS3741 CENCAT7213 CENCAU8319 CENCAW7236

CENCAR4713 CENCAS2795 CENCAS6881 CENCAT5307 CENCAW0746 CENCAW7239

CENCAR4715 CENCAS2792 CENCAS6867 CENCAT7215 CENCAW0747 CENCAW7242

CENCAR4714 CENCAR9941 CENCAS6882 CENCAT7217 CENCAW0753 CENCAW7243

CENCAR4716 CENCAR9937 CENCAS6877 CENCAT5304 CENCAW0755 CENCAW7241

CENCAR4717 CENCAR9940 CENCAS6879 CENCAT5302 CENCAU5166 CENCAW7245

CENCAR4722 CENCAS2793 CENCAS6883 CENCAT0479 CENCAW0744 CENCAW7244

CENCAR4723 CENCAS2791 CENCAS6880 CENCAT0475 CENCAW0745 CENCAX4139

CENCAR4720 CENCAS2794 CENCAS6874 CENCAT7216 CENCAW0748 CENCAX4140

CENCAR4721 CENCAS3727 CENCAT0463 CENCAT7214 CENCAW0756 CENCAX4135

CENCAR4718 CENCAS3723 CENCAT0462 CENCAT7219 CENCAW0754 CENCAX4136

CENCAR6683 CENCAS3731 CENCAS6885 CENCAT0478 CENCAW0752 CENCAX4138

CENCAX4137 CENCAX4179 CENCAY8152 CENCA14443 CENCA17820 CENCA33657

CENCAX4143 CENCAX4181 CENCA02748 CENCA10564 CENCA17823 CENCA33654

CENCAX4147 CENCAX4182 CENCAY8158 CENCA10563 CENCA17821 CENCA35132

CENCAX4142 CENCAX4178 CENCA02747 CENCA14441 CENCA17826 CENCA33655

CENCAX4144 CENCAX4185 CENCA02749 CENCA14442 CENCA17827 CENCA33641

CENCAX4145 CENCAX4177 CENCA02745 CENCA14449 CENCA17825 CENCA35129

CENCAX4146 CENCAX4186 CENCA02743 CENCA14451 CENCA17808 CENCA35137

CENCAX4150 CENCAX4187 CENCA02744 CENCA14447 CENCA27578 CENCA35138

CENCAX4152 CENCAX4183 CENCA02746 CENCA14448 CENCA27576 CENCA35136

CENCAX4151 CENCAX4184 CENCA02752 CENCA14450 CENCA27577 CENCA35130

CENCAX4148 CENCAX4190 CENCA02751 CENCA14444 CENCA27579 CENCA35128

CENCAX4154 CENCAX4189 CENCA02750 CENCA14446 CENCA27580 CENCA35126

CENCAX4149 CENCAX4191 CENCA02754 CENCA14454 CENCA27581 CENCA35134

CENCAX4155 CENCAX4192 CENCA02753 CENCA14445 CENCA27588 CENCA35133

CENCAX4158 CENCAX4188 CENCA10547 CENCA14456 CENCA27587 CENCA35131

CENCAX4156 CENCAX4193 CENCA02757 CENCA14459 CENCA27583 CENCA35135

CENCAX4157 CENCAY8142 CENCA02756 CENCA14457 CENCA27584 CENCA17828

CENCAX4153 CENCAY8144 CENCA02755 CENCA17809 CENCA27585 CENCA17829

CENCAX4161 CENCAY8141 CENCA02759 CENCA17806 CENCA27586 CENCA35127

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UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).
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NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

CENCAX4162 CENCAX4194 CENCA10548 CENCA14453 CENCA27582 CENCA35141

CENCAX4159 CENCAY8143 CENCA10545 CENCA17824 CENCA33638 CENCA35142

CENCAX4166 CENCAY8140 CENCA02760 CENCA14452 CENCA27590 CENCA35139

CENCAX4160 CENCAY8149 CENCA10546 CENCA17810 CENCA27592 CENCA35144

CENCAX4167 CENCAY8146 CENCA10550 CENCA14460 CENCA27594 CENCA35143

CENCAX4170 CENCAY8145 CENCA10549 CENCA14458 CENCA27593 CENCA43496

CENCAX4172 CENCAY8150 CENCA10553 CENCA14455 CENCA27595 CENCA35140

CENCAX4169 CENCAY8147 CENCA10551 CENCA17817 CENCA27589 CENCA43495

CENCAX4176 CENCAY8148 CENCA10554 CENCA17814 CENCA27591 CENCA43850

CENCAX4173 CENCAY8155 CENCA10561 CENCA17807 CENCA33640 CENCA43853

CENCAX4175 CENCAY8159 CENCA10560 CENCA17813 CENCA33643 CENCA43848

CENCAX4163 CENCA02742 CENCA10555 CENCA17815 CENCA33639 CENCA43855

CENCAX4164 CENCAY8153 CENCA10562 CENCA17812 CENCA33642 CENCA43851

CENCAX4168 CENCAY8151 CENCA10552 CENCA17811 CENCA35125 CENCA43849

CENCAX4171 CENCAY8157 CENCA10558 CENCA17819 CENCA33656 CENCA43852

CENCAX4174 CENCAY8156 CENCA10556 CENCA17816 CENCA33644 CENCA43859

CENCAX4165 CENCAY8154 CENCA10559 CENCA17818 CENCA33653 CENCA43857

CENCAX4180 CENCA02741 CENCA10557 CENCA17822 CENCA33652 CENCA43862

CENCA43866 CENCA50644 CENCA58356 CENCA60136 CENCA67256 CENCA72713

CENCA43854 CENCA50647 CENCA58612 CENCA63647 CENCA69675 CENCA74565

CENCA43856 CENCA54906 CENCA58360 CENCA63643 CENCA69676 CENCA74566

CENCA43861 CENCA50654 CENCA58605 CENCA63645 CENCA67255 CENCA74562

CENCA43867 CENCA50653 CENCA58606 CENCA63646 CENCA69671 CENCA74561

CENCA43865 CENCA50657 CENCA58611 CENCA63640 CENCA69672 CENCA74564

CENCA43858 CENCA54904 CENCA58620 CENCA63641 CENCA69670 CENCA74575

CENCA43860 CENCA50655 CENCA58615 CENCA63644 CENCA69678 CENCA74570

CENCA45576 CENCA50649 CENCA58617 CENCA63642 CENCA69685 CENCA74574

CENCA45577 CENCA50650 CENCA58619 CENCA63638 CENCA69680 CENCA74569

CENCA45578 CENCA50648 CENCA58621 CENCA63639 CENCA69679 CENCA74567

CENCA45579 CENCA54908 CENCA58614 CENCA63648 CENCA69683 CENCA74568

CENCA43864 CENCA50656 CENCA58618 CENCA63650 CENCA69677 CENCA74573

CENCA45580 CENCA50652 CENCA60119 CENCA63651 CENCA69686 CENCA74572

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Not Subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3).
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SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

SERIAL

NUMBER

CENCA43863 CENCA54910 CENCA58616 CENCA63649 CENCA69681 CENCA74571

CENCA48261 CENCA54912 CENCA60120 CENCA63652 CENCA69687 CENCA78364

CENCA48259 CENCA54907 CENCA58623 CENCA63653 CENCA69682 CENCA78362

CENCA48265 CENCA54914 CENCA58624 CENCA67246 CENCA71301 CENCA74576

CENCA48264 CENCA54913 CENCA58622 CENCA67244 CENCA71297 CENCA78365

CENCA48260 CENCA54911 CENCA60121 CENCA67248 CENCA71300 CENCA78366

CENCA48263 CENCA54909 CENCA60122 CENCA67245 CENCA69684 CENCA78363

CENCA48262 CENCA54919 CENCA60125 CENCA67243 CENCA71298 CENCA78368

CENCA48269 CENCA54920 CENCA60123 CENCA67240 CENCA71296 CENCA78370

CENCA48267 CENCA54916 CENCA60124 CENCA67242 CENCA71299 CENCA78375

CENCA50639 CENCA54917 CENCA60126 CENCA67241 CENCA72706 CENCA78372

CENCA48271 CENCA54921 CENCA60128 CENCA67239 CENCA72709 CENCA78371

CENCA50640 CENCA54922 CENCA60130 CENCA67249 CENCA71302 CENCA78369

CENCA48266 CENCA54915 CENCA60127 CENCA67247 CENCA72704 CENCA78374

CENCA48270 CENCA54918 CENCA60129 CENCA67252 CENCA72710 CENCA78376

CENCA50638 CENCA58359 CENCA60132 CENCA67238 CENCA72708 CENCA78373

CENCA48268 CENCA58358 CENCA60133 CENCA67251 CENCA72707 CENCA78367

CENCA50642 CENCA58355 CENCA60135 CENCA67253 CENCA72712 CENCA78379

CENCA50646 CENCA58354 CENCA60134 CENCA67257 CENCA72711 CENCA78381

CENCA50645 CENCA58357 CENCA60131 CENCA67250 CENCA74558 CENCA78378

CENCA50641 CENCA58613 CENCA63634 CENCA67254 CENCA74559 CENCA82085

CENCA50643 CENCA58353 CENCA63635 CENCA69674 CENCA74560 CENCA78377

CENCA50651 CENCA58607 CENCA63637 CENCA69673 CENCA74557 CENCA78380

CENCA82088 CENCA82098 CENCA86466 CENCA86468 CENCA86476 CENCA89911

CENCA82087 CENCA82095 CENCA82102 CENCA86470 CENCA86477 CENCA89913

CENCA82086 CENCA82096 CENCA74563 CENCA86472 CENCA86480 CENCA89914

CENCA82090 CENCA82094 CENCA82103 CENCA86473 CENCA89909 CENCA89912

CENCA82089 CENCA82097 CENCA86471 CENCA86474 CENCA89908 CENCA89917

CENCA82091 CENCA82099 CENCA86467 CENCA86478 CENCA89910

CENCA82092 CENCA82101 CENCA82104 CENCA86475 CENCA89907

CENCA82093 CENCA82100 CENCA86469 CENCA86479 CENCA89906

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UTC/P&W PROPRIETARY INFORMATION

Subject to the restrictions on the cover or first page.

Not subject to the EAR per 15 C.F.R Chapter 1, Part 734.3(b)(3).