 | GEnx-1B SERVICE BULLETIN - 72-0207 R00 | Revised: 04/30/2014 |
| SB 72-0207 R00 ENGINE - HPC Rotor Assembly (72-31-00) - Introduction of New HPC Stages 9 and 10 Blades with Alternate Coating | Issued: 04/30/2014 | |
| GEnx-1B SERVICE BULLETIN - 72-0207 R00 | Revised: 04/30/2014 |
| SB 72-0207 R00 ENGINE - HPC Rotor Assembly (72-31-00) - Introduction of New HPC Stages 9 and 10 Blades with Alternate Coating | Issued: 04/30/2014 | |
| 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 (2014) General Electric Company, U.S.A. |
| 1. | PLANNING INFORMATION |
| A. | Effectivity |
|
| This Service Bulletin is applicable to all GEnx-1B engines. |
| The HPC stages 9 and 10 blades listed in paragraph 2.C., Configuration Chart are affected by this Service Bulletin. |
| B. | Description |
| This Service Bulletin releases new HPC stages 9 and 10 blades with an alternate physical vapor deposition (PVD) coating. |
| C. | Compliance |
| Category 7 |
| GE recommends that you do this Service Bulletin at customer's option. |
| NOTE: |
|
| D. | Concurrent Requirements |
| None. |
| E. | Reason |
| (1) | Objective: |
| To introduce new parts. |
| (2) | Condition: |
| The GEnx-1B engine illustrated parts catalog (EIPC) needs to be updated to incorporate the new stages 9 and 10 blades part numbers. |
| (3) | Cause: |
| The new blade part numbers use an alternate coating with corrosion and erosion resistance equal to or better than the existing coating. |
| (4) | Improvement: |
| Information only to update the GEnx-1B EIPC. |
| (5) | Substantiation: |
| Substantiation is by comparative analysis. |
| F. | Approval |
| This Service Bulletin has been reviewed by the FAA and the repair(s) and modification(s) herein comply with the applicable Federal Aviation Regulations and are FAA 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 112851, GEnx-1B Engine Manual (EM) |
| GEK 112864, GEnx-1B Engine Illustrated Parts Catalog (EIPC) |
| NOTE: |
|
| J. | Publications Affected |
| GEK 112864, GEnx-1B Engine Illustrated Parts Catalog (EIPC) |
| K. | Interchangeability |
| Two-way interchangeable. |
| L. | Software Accomplishment Summary |
| Not applicable. |
| 2. | MATERIAL INFORMATION |
| A. | Material - Price and Availability |
| (1) | Parts necessary to do this Service Bulletin: |
|
| NOTE: |
|
| (2) | Other Spare Parts: |
| None. |
| (3) | Consumables: |
| None. |
| B. | Industry Support Information |
| None. |
| C. | Configuration Chart |
|
| Operation Codes AD=Add RE=Replace RM=Remains |
| Change Codes 2=Two-way interchangeable. 5=Qualified interchangeability. Refer to paragraph 1.K., Interchangeability. |
| D. | Parts Disposition |
| None. |
| E. | Tooling - Price and Availability |
| None. |
| 3. | ACCOMPLISHMENT INSTRUCTIONS |
| A. | General. |
| (1) | Removal and installation instructions for the HPC stages 9 and 10 blades have not changed. Refer to the GEnx-1B EM, 72-31-00, DISASSEMBLY 001 and ASSEMBLY 001, CONFIG 01 and 02. |