 | GEnx-1B SERVICE BULLETIN - 73-0085 R00 | Revised: 12/23/2019 |
| SB 73-0085 R00 ENGINE FUEL AND CONTROL - Electronic Engine Control (73-21-20) - Release of EEC Software (Version B205) | Issued: 12/23/2019 | |
| GEnx-1B SERVICE BULLETIN - 73-0085 R00 | Revised: 12/23/2019 |
| SB 73-0085 R00 ENGINE FUEL AND CONTROL - Electronic Engine Control (73-21-20) - Release of EEC Software (Version B205) | Issued: 12/23/2019 | |
| 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. |
| 1. | PLANNING INFORMATION |
| A. | Effectivity |
| * * * FOR GEnx-1B64, -1B64/P1, -1B64/P2, -1B67, -1B67/P1, -1B67/P2, -1B70, -1B70/75/P1, -1B70/75/P2, -1B70/P1, -1B70/P2, -1B70C/P1, -1B70C/P2, -1B74/75/P1, -1B74/75/P2, -1B76/P2, -1B76A/P2 |
| This Service Bulletin is applicable to all GEnx-1B engines. |
| This Service Bulletin has been introduced in production to these GEnx-1B engines: |
| • |
|
| These serial numbers are the best available data. |
| The electronic engine control (EEC) software (version B200) P/N 2124M23P24 and earlier are affected by this Service Bulletin. |
| B. | Description |
| This Service Bulletin releases a new EEC software (version B205) P/N 2124M23P25 and provides reprogramming instructions. |
| C. | Compliance |
| Category 2 |
| GE recommends that you do this Service Bulletin as soon as possible without effect on revenue service but before 120 days from the issue date of this Service Bulletin. |
| Impact B |
| This recommendation is to address a condition that may result in an Increased Rate of In-Flight Shutdowns (IFSD), Take-Off Aborts (TOA), Air Turn Backs (ATB) or Diversions (DIV). |
| NOTE: |
|
| 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 will be taken into consideration by GE in evaluating future product performance issues that may arise in the operators fleet. |
| D. | Concurrent Requirements |
| None. |
| E. | Reason |
| (1) | Objective: |
| To introduce new parts. |
| (2) | Condition: |
| Improvements to the EEC software have been identified. |
| (3) | Cause: |
| Revenue service experience has identified opportunities for the EEC software to abate combustion dynamics. |
| (4) | Improvement: |
| The purpose of the EEC software (version B205) is to introduce fuel split changes to further abate combustion dynamics seen in the GEnx-1B/P2 fleet. |
| (5) | Substantiation: |
| Substantiation is by analysis, comparative analysis, and test. |
| 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 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 |
| After you get access to the EEC, you will need approximately 1.0 man-hour for each engine or component. |
| H. | Weight and Balance |
| Weight and balance are not changed. |
| I. | References (Use the latest version of these documents) |
| GEnx-1B, Boeing 787 Aircraft Maintenance Manual (AMM) |
| GEK 112851, GEnx-1B Engine Manual (EM) |
| GEK 112864, GEnx-1B Engine Illustrated Parts Catalog (EIPC) |
| GEK 114001, GEnx-1B Component Maintenance Manual (CMM), 73-21-50 |
| NOTE: |
|
| J. | Publications Affected |
| GEK 112864, GEnx-1B Engine Illustrated Parts Catalog (EIPC) |
| K. | Interchangeability |
| One-way interchangeable. |
| NOTE: |
|
| L. | Software Accomplishment Summary |
| Not applicable. |
| 2. | MATERIAL INFORMATION |
| A. | Material - Price and Availability |
| (1) | Parts necessary to do this Service Bulletin: |
|
| NP = Not Provisioned |
| *Part not supplied by GE Engine Services Distribution L.L.C. To procure parts, contact the following: |
| FADEC International C/O BAE Systems Controls ATTN: Manager Spare Parts Sales P.O. Box 2232 Fort Wayne, IN 46801-2232 U.S.A. |
| Phone: (260) 434-5664 Fax: (260) 434-5616 |
| NOTE: |
|
| NOTE: |
|
| (2) | Other Spare Parts: |
| None. |
| (3) | Consumables: |
| None. |
| B. | Industry Support Information |
| None. |
| C. | Configuration Chart |
|
| Operation Codes RE=Replace RM=Remains |
| Change Codes 1=One-way interchangeable. |
| Support Codes A=Old parts will no longer be supplied. |
| D. | Parts Disposition |
| None. |
| E. | Tooling - Price and Availability |
|
| NOTE: |
|
| (1) | Operators performing the EEC software reprogramming procedure must request the following master CD-ROM from BAE Systems Controls Product Support Engineering: |
|
| NOTE: |
|
| • |
|
| • |
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| All CD-ROM load disks have embedded instructions allowing operators to make the data loading and configuration system (DLCS) reprogramming disks, portable data loader (PDL) disks, and retrieve only working copies as needed. |
| 3. | ACCOMPLISHMENT INSTRUCTIONS |
| A. | General |
| (1) | EEC onboard flight deck reprogramming procedure: |
| (a) | Start the onboard loadable software (LSAP). Refer to the GEnx-1B Boeing 787 AMM, TASK DMC-B787-A-45-13-00-02A-110B-A, START THE ONBOARD DATA LOAD FUNCTION - SOFTWARE OPERATION. |
| (b) | Install the software in the EEC. Refer to the GEnx-1B Boeing 787 AMM, TASK DMC-B787-A-G73-21-05-00B-750A-A, ELECTRONIC ENGINE CONTROL (WITH ONBOARD DATA LOAD FUNCTION) - SOFTWARE INSTALLATION. |
| (c) | Start the central maintenance computer (CMC). Refer to the GEnx-1B Boeing 787 AMM, TASK DMC-B787-A-45-11-00-00A-110B-A, CENTRAL MAINTENANCE COMPUTING FUNCTION - SOFTWARE OPERATION. |
| (d) | Examine the software configuration. Refer to the GEnx-1B Boeing 787 AMM, TASK DMC-B787-A-45-11-00-02A-300D-A, AIRPLANE COMPONENT WITH LOADABLE SOFTWARE - SOFTWARE CHECK. |
| NOTE: |
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| NOTE: |
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| (2) | Engine shop reprogramming and verification procedure: |
| (a) | Prepare a 615 working copy disk of the software. Refer to the instructions embedded on CD-ROM P/N 362A9836P18. |
| (b) | Reprogram the EEC with the PDL reprogramming disk working copy. Refer to Figure 1, paragraph 4., APPENDIX A - EEC REPROGRAMMING AND NVM RETRIEVAL, and GEnx-1B EM, 72-00-00, SPECIAL PROCEDURE 001. |
| (3) | EEC shop reprogramming and verification procedure: |
| (a) | Prepare a 615 working copy disk of the software. Refer to the instructions embedded on CD-ROM P/N 362A9836P18. |
| (b) | Reprogram the EEC with the PDL reprogramming disk working
copy. Refer to the GEnx-1B CMM, 73-21-50, APPENDIX
A - EEC REPROGRAMMING AND NVM RETRIEVAL and paragraph 4., APPENDIX A - EEC REPROGRAMMING AND NVM RETRIEVAL. |
| 4. | APPENDIX A - EEC REPROGRAMMING AND NVM RETRIEVAL |
| EEC/GSE Software Configuration |
| GE Software Part Number: 2124M23P25 |
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