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ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identi fication 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 con- fidence. 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, modi fications, 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.
GE Aviation authorizes the Federal Aviation Administration to incorporate this document by reference in an Airworthiness Directive.
Copyright (2018) General Electric Company, U.S.A.
July 27, 2017 GE90-100 S/B 72-0714 Revision 01, February 16, 2018 PAGE 1 of 18
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identi fication and Removal of HPC Stage 2-5 Spools from Service for Replacement
TRANSMITTAL INFORMATION REVISION 1 TO SERVICE BULLETIN 72-0714 Revision 1 is issued to update paragraphs 1.A., E ffectivity and 4., A PPENDIX - A.
The original was issued July 27, 2017. Revision bars in the left margin identify changes.
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 351-103-108-0, P/N 351-103-109-0, P/N 351-103-110-0, P/N 351-103-143-0, P/N 351-103-146-0, P/N 351-103-147-0, P/N 351-103-150-0, and P/N 351-103-152-0 are affected by this Service Bulletin.
NOTE 1: The HPC stage 2-5 spool P/N 351-103-108-0 (or the reidenti fied HPC stage 2-5 spool P/N 351-103-143-0, P/N 351-103-146-0, or P/N 351-103-150-0) with serial numbers listed in paragraph 4., A PPENDIX - A is affected by this Service Bulletin.
NOTE 2: The affected part numbers and the table given in paragraph 4., A PPENDIX - A show original HPC stage 2-5 spool part numbers from as-delivered parts.
If the parts have been remarked to new part numbers as speci fied by other Service Bulletins but the spool serial numbers are still shown in this table, they are still applicable to the recom mendations of this Service Bulletin.
NOTE 3: All the HPC stage 2-5 spools P/N 351-103-109-0, P/N 351-103-110-0, P/N 351-103-147-0, and P/N 351-103-152-0 are affected by this Service Bulletin with no restriction on the serial numbers.
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 the affected HPC stage 2-5 spools be removed from service before they exceed 8,200 cycles since new (CSN).
Impact A July 27, 2017 GE90-100 S/B 72-0714 Revision 01, February 16, 2018 PAGE 2 GE PROP RIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identi fication and Removal of HPC Stage 2-5 Spools from Service for Replacement This recommendation is to address a condition that may affect Flight Safety.
NOTE: This Service Bulletin can be accomplished in shop.
D. Concurrent Requirements None.
E. Reason
(1) Objective:
T o improve reliability and remove affected parts from service.
(2) Condition:
The HPC stage 2-5 spools in service may experience crack initiation in the HPC stage 5-6 seal teeth spacer arm based on engineering analysis.
(3) Cause:
The thermomechanical model led to con firm elevated stresses and temperatures higher than the initially predicted, based on previous experience.
(4) Improvement:
The affected HPC stage 2-5 spools will be removed from service and replaced.
(5) Substantiation:
Substantiation is by analysis.
F. Approval The data contained in this Service Bulletin has been reviewed by the FAA or authorized entity representing the FAA and the repair(s) and modi fication(s) herein comply with the applicable Aviation Regulations and are APPROVED for installation in the model(s) listed in this Service Bulletin.
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) July 27, 2017 GE90-100 S/B 72-0714 Revision 01, February 16, 2018 PAGE 3 GE PROP RIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identi fication and Removal of HPC Stage 2-5 Spools from Service for Replacement GEK 110005, GE90-100 Illustrated Parts Catalog (IPC) GE90-100 S/B 72-0666, ENGINE - Compressor Module Assembly (72-30-00) - Limited Workscope for Removal and Installation of HPC Rotor Stage 2-5 Spool 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:
None.
(2) Other Spare Parts:
Part Number Qty/ Eng Part Name Unit ($) Price Pkg Qty Lead Time Days 351-103-106-0* (1) Spool Stages 2-5
NP (-) -- OR 351-103-107-0* (1) Spool Stages 2-5
NP (-) -- OR 351-103-108-0* (1) Spool Stages 2-5
NP (-) -- OR 351-103-109-0* (1) Spool Stages 2-5
NP (-) -- OR 351-103-110-0* (1) Spool Stages 2-5
NP (-) -- OR July 27, 2017 GE90-100 S/B 72-0714 Revision 01, February 16, 2018 PAGE 4 GE PROP RIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identi fication and Removal of HPC Stage 2-5 Spools from Service for Replacement Part Number Qty/ Eng Part Name Unit ($) Price Pkg Qty Lead Time Days 351-103-112-0 (1) Spool Stages 2-5 563,700.00 (1) 5 OR 351-103-141-0* (1) Spool Stages 2-5
NP (-) -- OR 351-103-142-0* (1) Spool Stages 2-5
NP (-) -- OR 351-103-143-0* (1) Spool Stages 2-5
NP (-) -- OR 351-103-144-0* (1) Spool Stages 2-5
NP (-) -- OR 351-103-145-0* (1) Spool Stages 2-5
NP (-) -- OR 351-103-146-0* (1) Spool Stages 2-5
NP (-) -- OR 351-103-147-0* (1) Spool Stages 2-5
NP (-) -- OR 351-103-148-0* (1) Spool Stages 2-5
NP (-) -- OR 351-103-149-0* (1) Spool Stages 2-5
NP (-) -- OR 351-103-150-0* (1) Spool Stages 2-5
NP (-) -- OR July 27, 2017 GE90-100 S/B 72-0714 Revision 01, February 16, 2018 PAGE 5 GE PROP RIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identi fication and Removal of HPC Stage 2-5 Spools from Service for Replacement Part Number Qty/ Eng Part Name Unit ($) Price Pkg Qty Lead Time Days 351-103-151-0* (1) Spool Stages 2-5
NP (-) -- OR 351-103-152-0 (1) Spool Stages 2-5 572,700.00 (1) Quote *Part is a non-provisioned field rework part number.
NP = Not Provisioned NOTE: Prices are provided for planning purposes and are subject to change.
(3) Consumables:
Code Number Description C05-003 Marking Pen B. Industry Support Information None.
C. Configuration Chart Not applicable.
D. Parts Disposition Remove the affected HPC stage 2-5 spools from service.
E. Tooling - Price and Availability None.
3. ACCOMPLISHMENT INSTRUCTIONS A. General
(1) Make sure that the HPC stage 2-5 spool (1, Figure 1) part number is listed in paragraph 1.A., E ffectivity and/or the serial number is listed in paragraph 4., APPENDIX - A, and then do as follows:
(a) If the HPC stage 2-5 spool (1) is not affected, no more action is necessary.
(b) If the HPC stage 2-5 spool (1) is affected, continue with step 3.A.(2).
July 27, 2017 GE90-100 S/B 72-0714 Revision 01, February 16, 2018 PAGE 6 GE PROP RIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identi fication and Removal of HPC Stage 2-5 Spools from Service for Replacement
(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 HPC stage 2 dovetail slot No. 1. Refer to the GE90-100 EM, 72-31-00, DISASSEMBLY 001 or DISASSEMBLY 002, or GE90-100 S/B 72-0666, and Figure 2.
(3) Once you find the part number on the outer surface of the HPC stage 2 No. 1 dovetail slot, do a physical check of the part number that is engraved in the identification area of the suspected HPC stage 2-5 spool (1, Figure 1). Make sure that the engraved part number (Figure 2) is affected by this Service Bulletin.
(4) If the part number of the HPC stage 2-5 spool is P/N 351-103-108-0, P/N 351-103-143-0, P/N 351-103-146-0, or P/N 351-103-150-0, once you can see the serial number on the outer surface of the HPC stage 2 No. 1 dovetail slot, do a physical check of the serial number that is engraved in the identi fication area of the suspected 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., A PPENDIX - A.
(5) 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:
(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) Put a NON SERVICEABLE mark 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.
(6) Make sure that the NON SERVICEABLE mark can be read and that the label is attached tightly to prevent the HPC stage 2-5 spool (1, Figure 1) from reinstallation after removal.
(7) Remove the affected HPC stage 2-5 spool (1). Refer to the GE90-100 EM, 72-31-00, DISASSEMBLY 001 or DI SASSEMBLY 002, or GE90-100 S/B 72-0666.
(8) Install a replacement HPC stage 2-5 spool (1, Figure 1). Refer to the GE90-100 EM, 72-31-00, ASSEMB LY 001 or ASSEMBLY 002, or GE90-100 S/B 72-0666.
(9) Assemble the HPC rotor assembly. Refer to the GE90-100 EM, 72-31-00, ASSEMBLY 001 or ASSEMBLY 002, or GE90-100 S/B 72-0666.
July 27, 2017 GE90-100 S/B 72-0714 Revision 01, February 16, 2018 PAGE 7 GE PROP RIETARY INFORMATION - Subject to the restrictions on the cover or first page.
GEN • -100 SERIES GE Aircraft Engines
SERVICE BULLETIN ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal of HPC Stage 2-5 Spools from Service for Replacement FWD 5039037-00 HPC Rotor Assembly Figure 1, ( Sheet 1 of 2) July 27, 2017 GE90-100 S/B 72-0714 Revision 01, February 16, 2018 PAGE 8 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
GEO • -100 SERIES GE Aircraft Engines
SERVICE BULLETIN ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal of HPC Stage 2-5 Spools from Service for Replacement INTERSTAGE 5-6
SEAL TEETH HPC STAGE 5-6 SEAL
TEETH SPACER ARM LEGEND:
1. HPC STAGE 2-5 SPOOL 5039038-00 HPC Rotor Assembly Figure 1, ( Sheet 2) July 27, 2017 GE90-100 S/B 72-0714 Revision 01, February 16, 2018 PAGE 9 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
GE O • - 100 SERIES GE Aircraft Engines
SERVICE BULLETIN ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identification and Removal of HPC Stage 2-5 Spools from Service for Replacement HPC STAGE 2-5 SPOOL STAGE 2 DISK SLOT NUMBER 1- HPC STAGE 2-5 SPOOL
SERIAL NUMBER
BLADE NUMBER ONE LOCATION IS IDENTIFIED BY TWO NUMBER " 1" ON THE FORWARD FACE OF THE HPC STAGE 2-5 SPOOL STAGE 2 DISK STAGE 2 DISK SLOT NUMBER 2 NOTE:
SOME HPC STAGE 2-5 SPOOLS COULD HAVE BEEN REMARKED MULTIPLE TIMES. THUS,
THE MARKING AREA CAN BE DIFFERENT FROM THE ONE DESCRIBED ABOVE (THE MARKING MUST BE IN A DIFFERENT DOVETAIL LOCATION). 5039039-00 HPC Rotor Assembly Figure 2 July 27, 2017 GE90-100 S/B 72-0714 Revision 01, February 16, 2018 PAGE 10 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identi fication 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 the parts have been remarked to new part numbers as speci fied 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) 351-103-108-0 PA139924 Unknown 906108 351-103-108-0 PA259984 Unknown 906109 351-103-108-0 PA113828 WM034385 906111 351-103-108-0 LA147390 Unknown 906115 351-103-108-0 PA131454 Unknown 906117 351-103-108-0 PA047921 WM034315 906125 351-103-108-0 PA010161 WM034318 906143 351-103-108-0 PA121299 WM034373 906165 351-103-108-0 PA235376 WM034470 906169 351-103-108-0 PA235374 WM034480 906200 351-103-108-0 PA177444 WM034425 906212 351-103-108-0 PA158707 WM034392 906223 351-103-108-0 LA152444 Unknown 906242 351-103-108-0 PA010162 WM034280 906252 351-103-108-0 LA147233 WM034168 906266 351-103-108-0 LA147394 WM034170 906267 351-103-108-0 PA135690 WM034391 906269 351-103-108-0 LA148247 WM034173 906272 351-103-108-0 LA148821 WM034178 906287 351-103-108-0 PA206086 WM034446 906295 351-103-108-0 PA206084 WM034451 906307 351-103-108-0 PA111099 WM034353 906318 351-103-108-0 PA235373 WM034482 906322 July 27, 2017 GE90-100 S/B 72-0714 Revision 01, February 16, 2018 PAGE 11 GE PROP RIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - High Pressure Compressor Rotor Assembly (72-31-00) - Identi fication 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) 351-103-108-0 PA102565 WM034343 906329 351-103-108-0 LA156529 WM034240 906340 351-103-108-0 PA012802 WM034287 906357 351-103-108-0 PA012800 WM034271 906370 351-103-108-0 PA012639 WM034270 906371 351-103-108-0 LA157981 WM034272 906372 351-103-108-0 LA158255 WM034274 906373 351-103-108-0 LA158257 WM034275 906374 351-103-108-0 LA158253 WM034277 906376 351-103-108-0 LA158256 WM034279 906377 351-103-108-0 PA012635 WM034278 906378 351-103-108-0 PA106357 WM034354 906380 351-103-108-0 PA012797 WM034281 906381 351-103-108-0 PA043717 WM034310 906383 351-103-108-0 PA030097 WM034285 906384 351-103-108-0 PA019904 WM034284 906385 351-103-108-0 PA012803 WM034283 906387 351-103-108-0 PA030101 WM034289 906388 351-103-108-0 PA012801 WM034288 906389 351-103-108-0 PA025611 WM034286 906390 351-103-108-0 PA033713 WM034294 906391 351-103-108-0 PA072694 WM034320 906393 351-103-108-0 PA030100 WM034298 906394 351-103-108-0 PA030098 WM034299 906395 351-103-108-0 PA046890 WM034300 906397 351-103-108-0 PA046887 WM034302 906398 351-103-108-0 PA025613 WM034290 906399 351-103-108-0 PA047920 WM034306 906403 351-103-108-0 PA019903 WM034301 906404 July 27, 2017 GE90-100 S/B 72-0714 Revision 01, February 16, 2018 PAGE 12 GE PROP RIETARY INFORMATION - Subject to the restrictions on the cover or first page.