ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal

of HPC Stage 2-5 Spools from Service for Replacement

GE PROPRIETARY INFORMATION

The information contained in this document is GE proprietary information and is disclosed in confidence. It is the property of GE and shall not be used, disclosed to others or reproduced without

the express written consent of GE, including, but without limitation, it is not to be used in the creation, manufacture, development, or derivation of any repairs, modifications, spare parts, designs, or

configuration changes or to obtain FAA or any other government or regulatory approval to do so. If

consent is given for reproduction in whole or in part, this notice and the notice set forth on each page

of this document shall appear in any such reproduction in whole or in part.

This technical data is considered EAR controlled pursuant to 15 CFR Parts 730-774 respectively.

Transfer of this data by any means to a Non-US Person, whether in the United States or abroad,

without the proper U.S. Government authorization (e.g., License, exemption, NLR, etc.), is strictly

prohibited.

Copyright (2013) General Electric Company, U.S.A.

August 14, 2013 GE90-100 S/B 72-0499

PAGE 1 of 14
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal

of HPC Stage 2-5 Spools from Service for Replacement

1. PLANNING INFORMATION

A. Effectivity

GE90-110B1 and -115B

This Service Bulletin is applicable to all GE90-100 engines.

The spool stages 2-5 [high pressure compressor (HPC) stage 2-5 spools] P/N

351-103-106-0, P/N 351-103-107-0, P/N 351-103-141-0, P/N 351-103-142-0, P/N

351-103-144-0, P/N 351-103-145-0, P/N 351-103-148-0, P/N 351-103-149-0, and

P/N 351-103-151-0 are affected by this Service Bulletin.

NOTE: The HPC stage 2-5 spools with serial numbers listed in paragraph 4.,

APPENDIX - A are affected by this Service Bulletin.

B. Description

This Service Bulletin provides instructions to replace the affected HPC stage 2-5

spools with a replacement HPC stage 2-5 spool.

This Service Bulletin also gives instructions to label, or mark and scrap the removed

HPC stage 2-5 spool.

C. Compliance

Category 2

GE recommends that you do this Service Bulletin as follows:

. If the HPC stage 2-5 spool has greater than 5,800 cycles since new (CSN),

remove within 3 months from the issue date of this Service Bulletin, but before

6,000 CSN.

. If the HPC stage 2-5 spool has greater than 5,500 CSN and less than 5,800

CSN, remove within 6 months from the issue date of this Service Bulletin, but

before 6,000 CSN.

. If the HPC stage 2-5 spool has less than 5,500 CSN, remove before reaching

5,800 CSN.

NOTE 1: This Service Bulletin is not intended to extend the life limit of any HPC stage

2-5 spools. If the published life limit for a part in the GE90-100 Engine

Manual (EM) Chapter 05 is lower than the removal thresholds in paragraph

1.C., Compliance, the Chapter 05 life limit supersedes recommendations in

this Service Bulletin.

NOTE 2: This Service Bulletin can be accomplished in shop.

This Service Bulletin is offered to improve the reliability or performance of your GE

product, or to help prevent the occurrence of the event or condition described in this

Service Bulletin. If the operator elects not to participate in the bulletin, that decision

August 14, 2013 GE90-100 S/B 72-0499

PAGE 2

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal

of HPC Stage 2-5 Spools from Service for Replacement

will be taken into consideration by GE in evaluating future product performance

issues that may arise in the operator’s fleet.

D. Concurrent Requirements

None.

E. Reason

(1) Objective:

To improve reliability and remove parts from service.

(2) Condition:

HPC stage 2-5 spools in service have experienced micro-cracks in the HPC

stage 5-6 seal teeth spacer arm.

(3) Cause:

Elevated stresses due to coating application process and elevated

temperatures.

(4) Improvement:

The affected HPC stage 2-5 spools will be removed from service and replaced.

(5) Substantiation:

Substantiation is by analysis and comparative analysis.

F. Approval

This Service Bulletin contains no modification information that revises the approved

configuration and therefore does not require FAA approval.

G. Manpower

No additional man-hours are required to comply with this Service Bulletin.

H. Weight and Balance

Weight and balance are not changed.

I. References (Use the latest version of these documents)

GEK 9250, Commercial Engine Standard Practices Manual (SPM)

GEK 109993, GE90-100 Engine Manual (EM)

GEK 110005, GE90-100 Illustrated Parts Catalog (IPC)

August 14, 2013 GE90-100 S/B 72-0499

PAGE 3

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal

of HPC Stage 2-5 Spools from Service for Replacement

J. Publications Affected

None.

K. Interchangeability

Not applicable.

L. Software Accomplishment Summary

Not applicable.

2. MATERIAL INFORMATION

A. Material - Price and Availability

(1) Parts necessary to do this Service Bulletin:

Part Number

Qty/

Eng Part Name

Unit ($)

Price

Pkg

Qty

Lead

Time

Days

351-103-110-0 (1) Spool Stage 2-5 446,500.00 (1) 30

OR

351-103-108-0* (1) Spool Stage 2-5 NP (-) --

OR

351-103-109-0* (1) Spool Stage 2-5 NP (-) --

OR

351-103-143-0* (1) Spool Stage 2-5 NP (-) --

OR

351-103-146-0* (1) Spool Stage 2-5 NP (-) --

OR

351-103-147-0* (1) Spool Stage 2-5 NP (-) --

OR

351-103-150-0* (1) Spool Stage 2-5 NP (-) --

OR

351-103-152-0* (1) Spool Stage 2-5 NP (-) --

*Part not supplied by GE Engine Services Distribution L.L.C.

NP = Not Provisioned

NOTE: Prices are provided for planning purposes and are subject to change.

August 14, 2013 GE90-100 S/B 72-0499

PAGE 4

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal

of HPC Stage 2-5 Spools from Service for Replacement

(2) Other Spare Parts:

None.

(3) Consumables:

Code Number Description

C05-003 Marking Pen

B. Industry Support Information

Contact your Customer Support Manager (CSM).

C. Configuration Chart

Not applicable.

D. Parts Disposition

Scrap the removed HPC stage 2-5 spool.

E. Tooling - Price and Availability

None.

3. ACCOMPLISHMENT INSTRUCTIONS

A. General

(1) Make sure if the HPC stage 2-5 spool (1, Figure 1) serial number is listed in

paragraph 4., APPENDIX - A and then do as follows:

(a) If the HPC stage 2-5 spool (1) serial number is not listed, no more

action is necessary.

(b) If the HPC stage 2-5 spool (1) serial number is listed in paragraph 4.,

APPENDIX - A, continue with step 3.A.(2).

(2) Disassemble the HPC rotor assembly until you can see the HPC stage 2-5

spool (1) serial number located on the outer surface of the stage 2 dovetail

slot No. 1. Refer to the GE90-100 EM, 72-31-00, DISASSEMBLY 001 or

DISASSEMBLY 002, and Figure 2.

(3) When you can see the serial number on the outer surface of the stage 2

dovetail slot No. 1, physically do a check of the serial number engraved in the

marking area of the suspect HPC stage 2-5 spool (1, Figure 1). Make sure

that the engraved serial number (Figure 2) is the same serial number as the

one shown in paragraph 4., APPENDIX - A.

August 14, 2013 GE90-100 S/B 72-0499

PAGE 5

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal

of HPC Stage 2-5 Spools from Service for Replacement

(4) When you get access to the affected HPC stage 2-5 spool (1, Figure 1) and

before the disassembly of the HPC stage 2-5 spool (1), do as follows:

CAUTION: THE AFFECTED HPC STAGE 2-5 SPOOL IS NOT SERVICEABLE

AND NOT REPAIRABLE DESPITE THE VISUAL CONDITIONS.

(a) Attach a cardboard or metal label (tag) with "NON SERVICEABLE"

marked on it to the affected HPC stage 2-5 spool (1). Refer to the SPM,

70-16-02, TEMPORARY MARKING.

OR

(b) Mark "NON SERVICEABLE" on the affected HPC stage 2-5 spool (1,

Figure 1). Use a marking pen (C05-003) or equivalent. Refer to the

SPM, 70-16-02, TEMPORARY MARKING.

(5) Make sure that the "NON SERVICEABLE" mark can be read and the label is

attached tightly to prevent the HPC stage 2-5 spool (1, Figure 1) from being

reinstalled after removal.

(6) Remove the affected HPC stage 2-5 spool (1). Refer to the GE90-100 EM,

72-31-00, DISASSEMBLY 001 or DISASSEMBLY 002.

(7) Install a replacement HPC stage 2-5 spool (1, Figure 1). Refer to the

GE90-100 EM, 72-31-00, ASSEMBLY 001 or ASSEMBLY 002.

(8) Assemble the HPC rotor assembly. Refer to the GE90-100 EM, 72-31-00,

ASSEMBLY 001 or ASSEMBLY 002.

August 14, 2013 GE90-100 S/B 72-0499

PAGE 6

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal

of HPC Stage 2-5 Spools from Service for Replacement

HPC Rotor Assembly

Figure 1, ( Sheet 1 of 2 )

August 14, 2013 GE90-100 S/B 72-0499

PAGE 7

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal

of HPC Stage 2-5 Spools from Service for Replacement

HPC Rotor Assembly

Figure 1, ( Sheet 2 )

August 14, 2013 GE90-100 S/B 72-0499

PAGE 8

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal

of HPC Stage 2-5 Spools from Service for Replacement

Marking Location of the HPC Stage 2-5 Spool

Figure 2

August 14, 2013 GE90-100 S/B 72-0499

PAGE 9

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal

of HPC Stage 2-5 Spools from Service for Replacement

4. APPENDIX - A

The HPC stage 2-5 spool serial numbers listed below are affected by this Service Bulletin:

NOTE 1: The table below shows original spool part numbers from as-delivered parts. If parts

have been re-marked to new part numbers as specified by other Service Bulletins but

the spool serial numbers are still shown in this table, they are still applicable to the

recommendations in this Service Bulletin.

NOTE 2: The information in the table below is the best available data.

Original HPC

Stage 2-5 Spool

Part Number

HPC Stage 2-5

Spool Serial

Number

Original HPC Rotor

Assembly Serial Number

(at New Engine Build)

Engine Serial Number

(at New Engine Build)

351-103-106-0 LA095096 WM034003 906-103

351-103-106-0 LA098356 WM034002 906-102

351-103-106-0 LA099259 WM034004 906-104

351-103-106-0 LA100659 WM034005 906-105

351-103-106-0 LA108679 WM034007 906-107

351-103-106-0 LA109780 WM034008 906-108

351-103-106-0 LA109792 WM034010 906-110

351-103-106-0 LA110557 WM034009 906-109

351-103-106-0 LA110884 WM034013 906-113

351-103-106-0 LA115491 WM034012 906-112

351-103-106-0 LA115492 WM034011 906-111

351-103-106-0 LA115833 WM034014 906-116

351-103-106-0 LA116325 WM034016 906-115

351-103-106-0 LA116394 WM034017 906-117

351-103-106-0 LA116395 WM034015 906-114

351-103-106-0 LA117628 WM034019 906-119

351-103-106-0 LA117629 WM034018 906-118

351-103-106-0 LA118983 WM034021 906-121

351-103-106-0 LA118984 WM034020 906-120

351-103-106-0 LA119419 WM034023 906-123

351-103-107-0 LA118883 WM034022 906-122

351-103-107-0 LA119791 WM034024 906-124

351-103-107-0 LA120914 WM034026 906-126

August 14, 2013 GE90-100 S/B 72-0499

PAGE 10

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal

of HPC Stage 2-5 Spools from Service for Replacement

Original HPC

Stage 2-5 Spool

Part Number

HPC Stage 2-5

Spool Serial

Number

Original HPC Rotor

Assembly Serial Number

(at New Engine Build)

Engine Serial Number

(at New Engine Build)

351-103-107-0 LA120998 WM034025 906-125

351-103-107-0 LA121711 WM034028 906-128

351-103-107-0 LA121714 WM034032 906-132

351-103-107-0 LA122047 WM034029 906-129

351-103-107-0 LA122049 WM034089 906-189

351-103-107-0 LA122381 WM034031 906-131

351-103-107-0 LA122382 WM034030 906-130

351-103-107-0 LA122383 WM034033 906-133

351-103-107-0 LA122385 WM034034 906-135

351-103-107-0 LA123449 WM034036 906-136

351-103-107-0 LA123450 WM034035 906-134

351-103-107-0 LA124238 WM034039 906-139

351-103-107-0 LA124239 WM034046 906-147

351-103-107-0 LA124298 WM034040 906-140

351-103-107-0 LA124300 WM034037 906-137

351-103-107-0 LA124307 WM034038 906-138

351-103-107-0 LA124501 WM034041 906-141

351-103-107-0 LA124502 WM034043 906-143

351-103-107-0 LA124503 WM034042 906-142

351-103-107-0 LA124505 WM034047 906-146

351-103-107-0 LA125188 WM034044 906-144

351-103-107-0 LA125189 WM034045 906-145

351-103-107-0 LA125757 WM034048 906-148

351-103-107-0 LA125758 WM034049 906-149

351-103-107-0 LA125759 WM034054 906-154

351-103-107-0 LA125897 WM034071 906-171

351-103-107-0 LA125898 WM034065 906-164

351-103-107-0 LA125975 WM034056 906-156

351-103-107-0 LA125976 WM034053 906-153

351-103-107-0 LA126335 WM034055 906-155

August 14, 2013 GE90-100 S/B 72-0499

PAGE 11

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal

of HPC Stage 2-5 Spools from Service for Replacement

Original HPC

Stage 2-5 Spool

Part Number

HPC Stage 2-5

Spool Serial

Number

Original HPC Rotor

Assembly Serial Number

(at New Engine Build)

Engine Serial Number

(at New Engine Build)

351-103-107-0 LA126734 WM034051 906-151

351-103-107-0 LA126735 WM034052 Unknown

351-103-107-0 LA126736 WM034092 906-192

351-103-107-0 LA126737 WM034050 906-150

351-103-107-0 LA127450 WM034082 906-182

351-103-107-0 LA127451 WM034080 906-180

351-103-107-0 LA127452 WM034057 906-157

351-103-107-0 LA127453 WM034063 906-162

351-103-107-0 LA127454 WM034067 906-166

351-103-107-0 LA128316 WM034058 906-158

351-103-107-0 LA128317 WM034059 906-159

351-103-107-0 LA128318 WM034064 906-163

351-103-107-0 LA128319 WM034060 906-160

351-103-107-0 LA128320 WM034069 906-168

351-103-107-0 LA128321 WM034061 906-161

351-103-107-0 LA128322 WM034062 906-169

351-103-107-0 LA128500 WM034068 906-167

351-103-107-0 LA129364 WM034077 906-177

351-103-107-0 LA129365 WM034091 906-191

351-103-107-0 LA129366 WM034072 906-172

351-103-107-0 LA129367 WM034074 906-193

351-103-107-0 LA129368 WM034076 906-176

351-103-107-0 LA129369 WM034066 906-165

351-103-107-0 LA130802 WM034090 906-190

351-103-107-0 LA130803 WM034073 906-175

351-103-107-0 LA132095 WM034079 906-179

351-103-107-0 LA132096 WM034075 906-174

351-103-107-0 LA132097 WM034070 906-170

351-103-107-0 LA132116 WM034083 906-183

351-103-107-0 LA132720 WM034088 906-188

August 14, 2013 GE90-100 S/B 72-0499

PAGE 12

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal

of HPC Stage 2-5 Spools from Service for Replacement

Original HPC

Stage 2-5 Spool

Part Number

HPC Stage 2-5

Spool Serial

Number

Original HPC Rotor

Assembly Serial Number

(at New Engine Build)

Engine Serial Number

(at New Engine Build)

351-103-107-0 LA132721 WM034078 906-178

351-103-107-0 LA133345 WM034085 906-186

351-103-107-0 LA133346 WM034087 906-187

351-103-107-0 LA133347 WM034086 906-185

351-103-107-0 LA133348 WM034084 906-184

351-103-107-0 LA133349 WM034081 906-181

351-103-107-0 LA134478 WM034104 906-204

351-103-107-0 LA134479 WM034094 906-194

351-103-107-0 LA134480 WM034096 906-196

351-103-107-0 LA135372 WM034093 906-173

351-103-107-0 LA135373 WM034098 906-202

351-103-107-0 LA135620 WM034099 906-198

351-103-107-0 LA135621 WM034103 906-203

351-103-107-0 LA135622 WM034095 906-195

351-103-107-0 LA136026 WM034100 906-199

351-103-107-0 LA136028 WM034102 906-201

351-103-107-0 LA136029 WM034105 906-218

351-103-107-0 LA136030 WM034101 906-200

351-103-107-0 LA136035 WM034097 906-197

351-103-107-0 LA136430 WM034110 906-209

351-103-107-0 LA136431 WM034112 906-211

351-103-107-0 LA136432 WM034111 906-210

351-103-107-0 LA136433 WM034109 906-205

351-103-107-0 LA136434 WM034119 906-217

351-103-107-0 LA138184 WM034108 906-208

351-103-107-0 LA138723 WM034116 906-214

351-103-107-0 LA138724 WM034114 906-212

351-103-107-0 LA138725 WM034117 906-215

351-103-107-0 LA139701 WM034113 906-216

351-103-107-0 LA139702 WM034115 906-225

August 14, 2013 GE90-100 S/B 72-0499

PAGE 13

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal

of HPC Stage 2-5 Spools from Service for Replacement

Original HPC

Stage 2-5 Spool

Part Number

HPC Stage 2-5

Spool Serial

Number

Original HPC Rotor

Assembly Serial Number

(at New Engine Build)

Engine Serial Number

(at New Engine Build)

351-103-107-0 LA140791 WM034125 906-223

351-103-107-0 LA140792 WM034123 906-222

351-103-141-0 LA119416 WM034027 906-127

August 14, 2013 GE90-100 S/B 72-0499

PAGE 14

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.