 | GEnx-1B SERVICE BULLETIN - 72-0162 R06 | Revised: 12/13/2019 |
| SB 72-0162 R06 ENGINE - General (72-00-00) - GEnx-1B/P2 Hardware Release (TCF Module) | Issued: 08/27/2013 | |
| GEnx-1B SERVICE BULLETIN - 72-0162 R06 | Revised: 12/13/2019 |
| SB 72-0162 R06 ENGINE - General (72-00-00) - GEnx-1B/P2 Hardware Release (TCF Module) | Issued: 08/27/2013 | |
| GE Designated: -CONFIDENTIAL- | |
| 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 part. | |
| This technical data is considered subject to the Export Administration Regulations (EAR) pursuant to 15 CFR Parts 730-774. Transfer of this data by any means to a Non-U.S. 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 (2019) General Electric Company, U.S.A. |
| TRANSMITTAL INFORMATION |
| REVISION 6 TO SERVICE BULLETIN 72-0162 |
| Revision 6 is issued to update paragraph 2., MATERIAL INFORMATION. |
| Revision 5 was issued October 26, 2016. Revision 4 was issued December 21, 2015. Revision 3 was issued August 25, 2015. Revision 2 was issued May 27, 2015. Revision 1 was issued May 02, 2014. The original was issued August 27, 2013. Revision bars in the left margin identify changes. |
| 1. | PLANNING INFORMATION |
| A. | Effectivity |
| * * * FOR GEnx-1B64, -1B67, -1B70, -1B64/P1, -1B67/P1, -1B70/P1, -1B70/75/P1, -1B64/P2, -1B67/P2, -1B70/P2, -1B70/75/P2, -1B74/75/P1, -1B74/75/P2 |
| This Service Bulletin is applicable to these GEnx-1B engines: |
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| This Service Bulletin has been introduced in production to these GEnx-1B engines: |
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| These serial numbers are the best available data. |
| B. | Description |
| This Service Bulletin releases the GEnx-1B/P2 new hardware names and part numbers (P/N) information to the Engine Illustrated Parts Catalog (EIPC). This Service Bulletin also provides instructions to convert the turbine center frame (TCF) module assembly from a GEnx-1BXX/G03, GEnx-1BXX/G04, or GEnx-1BXX/P1/G01 to the GEnx-1BXX/P2G01 configuration. |
| C. | Compliance |
| Category 7 |
| GE recommends that you do this Service Bulletin at customer's convenience or option. |
| NOTE: |
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| D. | Concurrent Requirements |
| None. |
| E. | Reason |
| (1) | Objective: |
| To introduce the new GEnx-1B/PIP2 engine model and associated new parts to the EIPC and provide configuration conversion instructions. |
| (2) | Condition: |
| The GEnx-1B/P2 model includes upgrades to improve performance and durability. |
| (3) | Cause: |
| Product improvement. |
| (4) | Improvement: |
| This Service Bulletin introduces the GEnx-1B/P2 configuration, which improves the fuel efficiency of the GEnx-1B engine. Depending on engine operating characteristics and configuration, this Service Bulletin can improve the Specific Fuel Consumption (SFC) of the GEnx-1B and GEnx-1B/P1 engines. |
| (5) | Substantiation: |
| Substantiation is by analysis and test. |
| F. | Approval |
| This Service Bulletin has been reviewed by the FAA or authorized representative of the FAA and the repair(s) and modification(s) herein comply with the applicable Aviation Regulations and are APPROVED for installation in the model(s) listed in this Service Bulletin. |
| G. | Manpower |
| The man hours required to accomplish this Service Bulletin are equivalent to the time required to perform a full performance restoration workscope. |
| H. | Weight and Balance |
| Weight and balance are not changed. Refer to the GEnx-1B S/B 72-0154, GEnx-1B/P2 Hardware Release (Collector Bulletin) for final weight and balance information. |
| I. | References (Use the latest version of these documents) |
| GEK 9250, Commercial Engine Standard Practice Manual (SPM) |
| GEK 112851, GEnx-1B Engine Manual (EM) |
| GEK 112862, GEnx-1B Cleaning, Inspection, and Repair Manual (CIR) |
| GEK 112864, GEnx-1B Engine Illustrated Parts Catalog (EIPC) |
| GEnx-1B S/B 72-0016, ENGINE - Turbine Center Frame Assembly - No. 4 Bearing (72-54-00) - Introduction of Improved No. 4 Roller Bearing |
| GEnx-1B S/B 72-0062, ENGINE - Turbine Center Frame (72-54-00) - Introduction of New Service Tubes and Piston Ring Seals |
| GEnx-1B S/B 72-0121, ENGINE - Propulsor Module Assembly (72-00-02) - Introduction of MTU Designed Turbine Center Frame Assembly |
| GEnx-1B S/B 72-0154, ENGINE - General (72-00-00) - GEnx-1B/P2 Hardware Release (Collector Bulletin) |
| GEnx-1B S/B 72-0252, ENGINE - General (72-00-00) - Introduction of Parts to the GEnx-1B IPC |
| Repair Document (RD) 925-564 (L1 or higher), Turbine Center Frame - Turbine Center Frame Case Assembly - Alteration - Relocation of Hub Purge Holes and Increase Strut Purge Slot Size |
| Repair Document (RD) 925-575 (L1 or higher), Turbine Center Frame - Rear Transition Duct Hangers - Alteration - Machine Hanger for Fit of Extended Heat Shield |
| NOTE: |
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| J. | Publications Affected |
| GEK 112851, GEnx-1B Engine Manual (EM) |
| GEK 112862, GEnx-1B Cleaning, Inspection, and Repair Manual (CIR) |
| GEK 112864, GEnx-1B Engine Illustrated Parts Catalog (EIPC) |
| K. | Interchangeability |
| (1) | The TCF assemblies P/N 1GN38001G01 (NON-RAKE) and P/N 1GN38003G01 (RAKE) are two-way interchangeable as a set on the GEnx-1B/P2 engine. Both modules can be used on either RAKE or NON-RAKE GEnx-1B/P2 engines. |
| (2) | The TCF assemblies P/N 2305M58G05, P/N 2305M58G06, and P/N 2305M58G07 are one-way interchangeable as a set with the TCF assembly P/N 2305M58G08 or P/N 1GN38001G01 or P/N 1GN38003G01. |
| (3) | The parts listed below must be replaced as a set. If any part from the list below is installed on a TCF, all the remaining part numbers must also be installed. |
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| L. | Software Accomplishment Summary |
| Not applicable. |
| 2. | MATERIAL INFORMATION |
| A. | Material - Price and Availability |
| (1) | Parts necessary to do this Service Bulletin: |
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| *Significant item number (SIN) |
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| (2) | Other Spare Parts: |
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| NOTE: |
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| (3) | Consumables: |
| None. |
| B. | Industry Support Information |
| None. |
| C. | Configuration Chart |
| *Operation code replace (RE) is used in this configuration chart for part number changes and for changes in GEnx-1B EIPC catalog sequence numbers (CSNs). |
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| Operation Codes AD=Add DE=Delete QTC=Quantity Change RE=Replace RM=Remains RW=Rework |
| Change Codes 1=One-way interchangeable. 5=Qualified interchangeability. |
| Support Codes B=Old parts will be supplied until all old parts are sold. D=Old parts will be supplied for engines that have not been changed by this Service Bulletin and therefore will remain Non-PIP2 engines. |
| D. | Parts Disposition |
| Parts Disposition is described in each concurrent Service Bulletin listed in paragraph 1.D., Concurrent Requirements. Parts removed in the course of complying with this Service Bulletin, which are not reinstalled or reworked for reinstallation, may be retained by GE to support needs of the GEnx-1B configurations prior to the GEnx-1B/P2 configuration. |
| NOTE: |
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| E. | Tooling - Price and Availability |
| None. |
| 3. | ACCOMPLISHMENT INSTRUCTIONS |
| A. | GEnx-1B/G03 TCF Assembly P/N 2305M58G05 to GEnx-1B/P2 P/N 2305M58G08 Configuration Upgrade. |
| (1) | Send the complete TCF assembly P/N 2305M58G05 to MTU Hannover: |
| (a) | Shipping address: |
| MTU Maintenance Hannover GmbH Muenchener Strasse 31 30855 Langenhagen Germany |
| (2) | Disassembly: |
| (a) | Disassembly instructions for the TCF assembly (Figure 1) have not changed. Refer to the GEnx-1B EM, 72-54-00, DISASSEMBLY 001, CONFIG 01. |
| (3) | Alternative procedure available. Rework the rear hangers as follows: |
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| (b) | Rework the rear hangers from P/N 2304M53G01 to the P/N 2304M53G03 configuration. Refer to the RD 925-575. |
| (4) | Alternative procedure. Replace the TCF flowpath P/N 2304M99G21 with P/N 2304M99G23. |
| (5) | Alternative Procedure Available. Rework the TCF frames (hub-strut-cases) P/N 2304M98G07 or P/N 2304M98G08 as follows: |
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| (a) | Rework the rake capable TCF frame from P/N 2304M98G07 to P/N 2008M97G01 configuration. Refer to RD 925-564. |
| (b) | Rework the TCF frame from P/N 2304M98G08 to the P/N 2008M97G02 configuration. Refer to RD 925-564. |
| (6) | Alternative Procedure. Replace the TCF frames P/N 2304M98G07 or P/N 2304M98G08 with P/N 1GN32033 or P/N 2304M98G12 or P/N 2304M98G16. |
| (7) | Replace the necessary parts for the GEnx-1B/G03 upgrade as follows: |
| (a) | Use the GEnx-1B/G03 upgrade kits P/N 739L110G01, P/N 739L111G01, and P/N 739L113G01. |
| (b) | Deleted. |
| (8) | Assembly: |
| (a) | Assembly instructions for the TCF assembly (Figure 1) have not changed. Refer to the GEnx-1B EM, 72-54-00, ASSEMBLY 001, CONFIG 02. |
| (9) | Reidentify one side of the TCF strut No. 1 at the 12:00 o'clock position as follows: |
| (a) | Use one of the methods that follow: |
| 1 | For the dot peen marking method, refer to the SPM, 70-16-08, DOT PEEN MARKING FOR OPTICAL CHARACTER RECOGNITION. |
| NOTE: |
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| 2 | For the electrochemical etch marking method, refer to the SPM, 70-16-03, ELECTROCHEMICAL ETCH MARKING. |
| NOTE: |
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| (b) | Line out the current 2304M99GXX part number. Make sure that you maintain legibility and do not line out any other number. |
| (c) | Add P/N 2304M99G21 or P/N 2304M99G23, this decision depends on the TCF flowpath installed. |
| B. | GEnx-1B/G04 and GEnx-1B/P1 TCF Assembly P/N 2305M58G06 to GEnx-1B/P2 P/N 2305M58G08 Configuration Upgrade. |
| (1) | Send the complete TCF assembly P/N 2305M58G06 to MTU Hannover: |
| (a) | Shipping address: |
| MTU Maintenance Hannover GmbH Muenchener Strasse 31 30855 Langenhagen Germany |
| (2) | Disassembly: |
| (a) | Disassembly instructions for the TCF assembly (Figure 1) have not changed. Refer to the GEnx-1B EM, 72-54-00, DISASSEMBLY 001, CONFIG 01. |
| (3) | Alternative procedure available. Rework the rear hangers as follows: |
|
| (b) | Rework the rear hangers from P/N 2304M53G01 to the P/N 2304M53G03 configuration. Refer to the RD 925-575. |
| (4) | Alternative procedure. Replace the TCF flowpath P/N 2304M99G21 with P/N 2304M99G23. |
| (5) | Replace the necessary parts for the GEnx-1B/G04 and GEnx-1B/P1 upgrade as follows: |
| (a) | Use the GEnx-1B/P1 upgrade kit P/N 739L114G01. |
| (b) | Deleted. |
| (6) | Assembly: |
| (a) | Assembly instructions for the TCF assembly (Figure 1) have not changed. Refer to the GEnx-1B EM, 72-54-00, ASSEMBLY 001, CONFIG 02. |
| (7) | Reidentify both sides of the TCF strut No. 1 at the 12:00 o'clock position as follows: |
| (a) | Use one of the methods that follow: |
| 1 | For the dot peen marking method, refer to the SPM, 70-16-08, DOT PEEN MARKING FOR OPTICAL CHARACTER RECOGNITION. |
| NOTE: |
|
| 2 | For the electrochemical etch marking method, refer to the SPM, 70-16-03, ELECTROCHEMICAL ETCH MARKING. |
| NOTE: |
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| (b) | Line out the current 2304M99GXX part number. Make sure that you maintain legibility and do not line out any other number. |
| (c) | Add P/N 2304M99G21 or P/N 2304M99G23, this decision depends on the TCF flowpath installed. |
| C. | GEnx-1B/G04 and GEnx-1B/P1 TCF Assembly P/N 2305M58G07 to GEnx-1B/P2 P/N 2305M58G08 Configuration Upgrade. |
| (1) | Send the complete TCF assembly P/N 2305M58G07 to MTU Hannover: |
| (a) | Shipping address: |
| MTU Maintenance Hannover GmbH Muenchener Strasse 31 30855 Langenhagen Germany |
| (2) | Disassembly: |
| (a) | Disassembly instructions for the TCF assembly (Figure 1) have not changed. Refer to the GEnx-1B EM, 72-54-00, DISASSEMBLY 001, CONFIG 01. |
| (3) | Alternative procedure available. Rework the rear hangers as follows: |
|
| (b) | Rework the rear hangers from P/N 2304M53G01 to the P/N 2304M53G03 configuration. Refer to the RD 925-575. |
| (4) | Alternative procedure. Replace the TCF flowpath P/N 2304M99G21 with P/N 2304M99G23. |
| (5) | Replace the necessary parts for the GEnx-1BG04 and GEnx-1B/P1 upgrade as follows: |
| (a) | Use the GEnx-1B/P1 upgrade kit P/N 739L114G01. |
| (b) | Deleted. |
| (6) | Assembly: |
| (a) | Assembly instructions for the TCF assembly (Figure 1) have not changed. Refer to the GEnx-1B EM, 72-54-00, ASSEMBLY 001, CONFIG 02. |
| (7) | Reidentify both sides of the TCF strut No. 1 at the 12:00 o'clock position as follows: |
| (a) | Use one of the methods that follow: |
| 1 | For the dot peen marking method, refer to the SPM, 70-16-08, DOT PEEN MARKING FOR OPTICAL CHARACTER RECOGNITION. |
| NOTE: |
|
| 2 | For the electrochemical etch marking method, refer to the SPM, 70-16-03, ELECTROCHEMICAL ETCH MARKING. |
| NOTE: |
|
| (b) | Line out the current 2304M99GXX part number. Make sure that you maintain legibility and do not line out any other number. |
| (c) | Add P/N 2304M99G21 or P/N 2304M99G23, this decision depends on the TCF flowpath installed. |
| (d) | Line out the current P/N 2304M98G14. Make sure that you maintain legibility and do not line out any other number. |
| (e) | Add P/N 2304M98G18. |
| D. | For All Other GEnx-1B Configurations |
| (1) | Deleted |
| (2) | Deleted |
| (3) | For GEnx-1B/G04 or GEnx-1B/P1: |
| (a) | If the NON-RAKE TCF assembly P/N 1GN38001G01 or RAKE capable TCF assembly P/N 1GN38003G01 is already installed, no action is necessary. These TCF assemblies are certified for GEnx-1B PIP2 certified. |
