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

PW4164, PW4168, PW4168A, PW4168A-1D, PW4170

BULLETIN ISSUE SEQUENCE

PW4G-100 Series A72-255

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

2639

August 31/15

PW4G-100-A72-255

Page 1 of 15

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, Table 1. 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

PW4164, PW4168, PW4168A, PW4168A-1D, PW4170

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

specified in Appendix A, Table 1.

This Service Bulletin also applies to engines converted to the PW4164-1D, PW4168-1D,

PW4168A-1D, PW4170 models by Service Bulletin PW4G-100-72-220.

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 the 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 PW4000-100 series engine models

is as follows:

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 10th stage disk for cracks.

A. Part A — ECI as specified in Reference 7, NDIP-1155 at every HPC overhaul.

B. Part B — UTI as specified in Reference 6, NDIP-1154 at every High Pressure

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

(1) Remove any 10th stage disk from service that doesn’t 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:

August 31/15

PW4G-100-A72-255

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).
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 holder has 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.

Software Accomplishment Summary

Not Applicable.

References

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

2. PW4164, PW4168, PW4168A, PW4170 Turbofan Engines, Illustrated Parts Catalog,

Part No. 51A343.

3. PW4164, PW4164-1D, PW4164C, PW4164C-1D, PW4164C/B, PW4164C/B-1D, PW4168,

PW4168-1D, PW4168A, PW4168A-1D, PW4170 Turbofan Engines, Engine Manual, Part

No. 51A342.

4. PW4000 Series Turbofan Engines, Engine Cleaning, Inspection And Repair (CIR) Manual,

Part No. 51A357.

5. Service Bulletin No. PW4G-100-72-220; Engine — Conversion Of A PW4164, PW4168,

Or PW4168A Engine To A PW4164-1D, PW4168-1D, PW4168A-1D, Or PW4170 Engine.

Issue Sequence 72-220, PW4G-100 Series.

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

Ultrasonic Inspection (Module/Full HPC Drum Level).

August 31/15

PW4G-100-A72-255

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

Eddy Current Inspection (Disassembled Component).

NOTE: Reference 5 is shown to help find non-production configurations that may

incorporate this bulletin.

Publications Changed

1. PW4164, PW4168, PW4168A, PW4170 Turbofan Engines, Illustrated Parts Catalog, Part

No. 51A343, 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 31/15

PW4G-100-A72-255

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).
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 PW4164, PW4168, PW4168A, PW4168A-1D, PW4170 Engines:

New PN Qty Estimate of Unit

Price ($)

Keyword Old PN Instructions —

Disposition

1 DISK — ASSY

OF, HPC DRUM

ROTOR

53H976-01

(72-35-00-1-120)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06

(72-35-00-1-126)

(4)(X)

OR

1 DISK — ASSY

OF, HPC DRUM

ROTOR

53H976-101

(72-35-00-1-120AC)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06

(72-35-00-1-126)

(4)(X)

OR

1 DISK — ASSY

OF, HPC DRUM

ROTOR

54H816-01

(72-35-00-1-120 A)

(4)(X)

August 31/15

PW4G-100-A72-255

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).
New PN Qty Estimate of Unit

Price ($)

Keyword Old PN Instructions —

Disposition

1 .DISK — 10TH

STAGE

53H976-06

(72-35-00-1-126)

(4)(X)

OR

1 DISK — ASSY

OF, HPC DRUM

ROTOR

54H816-101

(72-35-00-1-120AB)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06

(72-35-00-1-126)

(4)(X)

OR

1 DISK — ASSY

OF, HPC DRUM

ROTOR

55H106-01

(72-35-00-1-120 B)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06

(72-35-00-1-126)

(4)(X)

OR

1 DISK — ASSY

OF, HPC DRUM

ROTOR

55H106-101

(72-35-00-1-120AA)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06

(72-35-00-1-126)

(4)(X)

OR

1 DISK — ASSY

OF, HPC DRUM

ROTOR

50S106-01

(72-35-00-1-120 C)

(4)(X)

1 .DISK — 10TH

STAGE

53H976-06

(72-35-00-1-126)

(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, Illustrated Parts Catalog for applicable replacement parts.

Vendor Services or Special Components/Materials

Not Applicable.

August 31/15

PW4G-100-A72-255

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).
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.

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 6, NDIP1154.

NOTE: * Detail tool listing for ECI is found in Reference 7, 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 31/15

PW4G-100-A72-255

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).
Accomplishment Instructions

Part A: EDDY CURRENT INSPECTION (ECI)

1. Do the ECI procedure as specified in Reference 7, NDIP-1155 on the suspect 10th Stage

Disk, PN 53H976-06 as specified in Appendix A, Table 1 and inspect for cracks. See

Figure 1, Sheets 1 and 2.

NOTE: To obtain a copy of the ECI procedure as specified in Reference 7, 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

Reference 7, NDIP-1155.

3. Rejected 10th Stage Disk, PN 53H976-06 must be removed from service and may be

replaced as specified in Reference 4, 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 3, 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 HPT as specified in Reference 3, Engine Manual, Chapter/Section

72-00-52, Removal-01.

C. Do the UTI procedure as specified in Reference 6, NDIP-1154 on the suspect 10th

Stage Disk, PN 53H976-06 as specified in Appendix A, Table 1 and inspect for cracks.

See Figure 1, Sheets 1 and 2.

NOTE: To obtain a copy of the UTI procedure as specified in Reference 6,

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).

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

Reference 6, NDIP-1154.

E. Rejected 10th Stage Disk, PN 53H976-06 must be removed from service and may

be replaced as specified in Reference 4, CIR Manual, Chapter/Section 72-35-07,

Repair-04.

NOTE: Operators may choose to inspect the 10th Stage Disk, PN 53H976-06 per

ECI procedure as specified in Reference 7, NDIP-1155 following a part

rejection via UTI procedure as specified in Reference 6, NDIP-1154 to

confirm part rejection.

August 31/15

PW4G-100-A72-255

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).
LOCATION OF THE DRUM ROTOR DISK ASSEMBLY

72-35-00

FIGURE 1, SHEET 1

August 31/15

PW4G-100-A72-255

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).
INSPECTION OF THE 10TH STAGE DISK

FIGURE 1, SHEET 2

August 31/15

PW4G-100-A72-255

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).
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 53H976-06

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

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

August 31/15

PW4G-100-A72-255

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).
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

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

August 31/15

PW4G-100-A72-255

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).
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

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

August 31/15

PW4G-100-A72-255

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).
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

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

August 31/15

PW4G-100-A72-255

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).
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

August 31/15

PW4G-100-A72-255

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).