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
* * * FOR GEnx-1B64, -1B64/P1, -1B64/P2, -1B67, -1B67/P1, -1B67/P2, -1B70, -1B70/75/P1, -1B70/75/P2, -1B70/P1, -1B70/P2
This Service Bulletin is applicable to all GEnx-1B engines.
The electronic engine control (EEC) kit P/N 738L357G08, P/N 738L357G09, P/N 738L357G10, P/N 738L357G11, and P/N 738L357G15 and EEC software P/N 2124M23P13, P/N 2124M23P14, and P/N 2124M23P16 are affected by this Service Bulletin.
B.Description
This Service Bulletin releases new software P/N 2124M23P18 and EEC kit P/N 738L357G19. This Service Bulletin also provides EEC reprogramming procedures.
C.Compliance
Category 2
GE recommends that you do this Service Bulletin by August 31, 2014.
Refer to GEnx-1B EM, TASK 05-11-07-200-801 (CONTROL SYSTEM - TIME LIMITED DISPATCH AND LIMITATIONS), which requires that software version B165 be removed from service no later than August 31, 2014 for the GEnx-1BXX/P2 series engine models.
NOTE:
Prior to compliance of this Service Bulletin, verify engine Maximum Continuous Margins can meet ETOPS requirements for the specific rating. Refer to GEK112851, Tasks 05-23-00-200-801 (Chapter 5 - Engine Condition Monitoring) and 72-00-00-760-824 (TESTING).
NOTE:
This Service Bulletin can be accomplished on wing or 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 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 EEC software improvements.
(4)Improvements:
The new EEC software version B175:
•
Enables ice crystal accommodation logic [variable bypass valve (VBV) opens to address potential core ice ingestion during ice crystal icing conditions].
•
Changes combustor cruise fuel mode logic for improved combustor spray nozzle durability (reduced pilot-only operation).
•
Improves booster anti-ice (BAI) functional test to reduce "test-not-run" and "test-failed" nuisance faults.
•
Updates EEC common data network fault logic to inhibit nuisance faults following engine shutdown.
•
Increases the persistence time of the thrust reverser (T/R) directional control valve secondary power distribution unit (SPDU) or power panel relay failed closed fault logic to reduce nuisance faults.
•
Updates take-off and stable cruise report trigger logic sent to engine maintenance unit (EMU) to reduce trend data scatter. These changes have no impact on the engine operation.
•
Increases persistence time for high pressure shut off valve (HPSOV) failed closed detection for air-starts to prevent nuisance engine indicating and crew alerting system (EICAS) indications.
•
Changes logic to inhibit the autorelight EICAS indication during thrust control malfunction accommodation (TCMA) shutdown as required.
•
Updates to GENX-1Bxx/P2 fuel control and variable geometry to protect against booster stall during a rejected takeoff (RTO).
NOTE:
The following improvements versus EEC software version B140 are included in the baseline PIP 2 EEC software version, B165, as well as B175.
•
Enabled BAI master minimum equipment list (MMEL) logic and revised BAI flow curves to reduce nuisance "test-not-run" faults.
•
Added EEC maintenance power on fault to reduce operation with EEC maintenance power left on.
•
Improved fuel flow signal processing logic to reduce nuisance blanking.
•
Added TCMA test robustness to reduce nuisance faults.
•
Updated fuel lever input processing logic to better leverage system redundancy, to reduce delayed engine shutdown and other related nuisance faults.
•
Introduced ground start logic improvements to increase start stall margin.
•
Improved internal EEC internal fault detection and channel switching logic to reduce nuisance auto-throttle disconnect faults.
•
Changed target VBV position in borescope special function (VBVs open) to support VBV system maintenance.
•
Added provisional logic for main fuel-oil heat exchanger (MFOHX) delta pressure monitoring.
(5)Substantiation:
Substantiation is by analysis and test.
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
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)
GEK 112851, GEnx-1B Engine Manual (EM)
GEK 112864, GEnx-1B Engine Illustrated Parts Catalog (EIPC)
GEnx-1B Boeing 787 Aircraft Maintenance Manual (AMM) - B787-81205-A0101-00
GEnx-1B Fault Isolation Manual (FIM) - B787-A81205-A0106-00
GEnx-1B S/B 73-0027, ENGINE FUEL AND CONTROL - Electronic Engine Control (73-21-20) - Release of EEC Software Version B165
NOTE:
The reference documents listed below are for the engine manufacturer's internal use only:
CID: 575286
BPP: 14-72-00-03
J.Publications Affected
GEK 112864, GEnx-1B Engine Illustrated Parts Catalog (EIPC)
K.Interchangeability
One-way interchangeable.
NOTE:
EEC software version B175 is compatible with all released EEC hardware configurations.
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
 
2124M23P18*
(1)
Software
NP
(-)
--
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:
The on-board software LSAP GEC4C-2124-2318 is obtained through the Boeing software library.
NOTE:
The CDs for PMAT loading are obtained from FADEC International. Refer to paragraph 2.E., Tooling - Price and Availability
for information on ordering CDs. CDs are provided for use when performing off-wing programming only.
(2)Other Spare Parts:
 
Part Number
Qty/ Eng
Part Name
Unit ($) Price
Pkg Qty
Lead Time Days
 
738L370G19*
(1)
Kit, EEC
NP
(-)
--
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
(3)Consumables:
None.
B.Industry Support Information
None.
C.Configuration Chart
 
New Part Number
Qty/ Eng
Part Name
Old Part Number/ IPC Location
Qty/ Eng
Op Code
Chg/ Sprt Code
 
GENX-1B64G03/
G04
(X)
GEnx Model
(SIN 00001)
GENX-1B64G03/
G04
(X)
RM
-/-
 
GENX-1B64/P1G01
(X)
GEnx Model
(SIN 00001)
GENX-1B64/P1G01
(X)
RM
-/-
 
GENX-1B67G03/
G04
(X)
GEnx Model
(SIN 00001)
GENX-1B67G03/
G04
(X)
RM
-/-
 
GENX-1B67/P1G01
(X)
GEnx Model
(SIN 00001)
GENX-1B67/P1G01
(X)
RM
-/-
 
GENX-1B70G03/
G04
(X)
GEnx Model
(SIN 00001)
GENX-1B70G03
G04
(X)
RM
-/-
 
GENX-1B70/P1G01
(X)
GEnx Model
(SIN 00001)
GENX-1B70/P1G01
(X)
RM
-/-
 
GENX-1B70/75/P1G01
(X)
GEnx Model
(SIN 00001)
GENX-1B70/75/P1G01
(X)
RM
-/-
 
.738L357G19
01-012K, 73-21-20
(1)
Kit, EEC
(SIN 00035)
.738L357G11
01-012G, 73-21-20
(1)
RW
1/-
 
..2124M23P18
01-014J, 73-21-20
(1)
Software
(SIN 66H00)
..2124M23P14
01-014F, 73-21-20
(1)
RW
1/-
 
.738L357G10
01-012H, 73-21-20
(ALT)
Kit, EEC
(SIN 00035)
.738L357G10
01-012H, 73-21-20
(ALT)
RM
1/-
 
..2124M23P18
01-014J, 73-21-20
(1)
Software
(SIN 66H00)
..2124M23P14
01-014G, 73-21-20
(1)
RW
1/-
 
.738L357G19
01-012K, 73-21-20
(1)
Kit, EEC
(SIN 00035)
.738L357G09
01-012E, 73-21-20
(1)
RW
1/-
 
..2124M23P18
01-014J, 73-21-20
(1)
Software
(SIN 66H00)
..2124M23P13
01-014D, 73-21-20
(1)
RW
1/-
 
.738L357G08
01-012F, 73-21-20
(ALT)
Kit, EEC
(SIN 00035)
.738L357G08
01-012F, 73-21-20
(ALT)
RM
1/-
 
..2124M23P18
01-014J, 73-21-20
(1)
Software
(SIN 66H00)
..2124M23P13
01-014E, 73-21-20
(1)
RW
1/-
 
GENX-1B64/P2G01
(X)
PIP 2 Model List
(SIN 00001)
GENX-1B64/P2G01
(X)
RM
-/-
 
GENX-1B64/P2G02
(X)
PIP 2 Model List
(SIN 00001)
GENX-1B64/P2G02
(X)
RM
-/-
 
GENX-1B67/P2G01
(X)
PIP 2 Model List
(SIN 00001)
GENX-1B67/P2G01
(X)
RM
-/-
 
GENX-1B67/P2G02
(X)
PIP 2 Model List
(SIN 00001)
GENX-1B67/P2G02
(X)
RM
-/-
 
GENX-1B70/P2G01
(X)
PIP 2 Model List
(SIN 00001)
GENX-1B70/P2G01
(X)
RM
-/-
 
GENX-1B70/P2G02
(X)
PIP 2 Model List
(SIN 00001)
GEnx-1B70/P2G02
(X)
RM
-/-
 
GENX-1B70/75/P2G01
(X)
PIP 2 Model List
(SIN 00001)
GENX-1B70/75/P2G01
(X)
RM
-/-
 
GENX-1B70/75/P2G02
(X)
PIP 2 Model List
(SIN 00001)
GENX-1B70/75/P2G02
(X)
RM
-/-
 
.738L357G19
01-012K, 73-21-20
(1)
Kit, EEC
(SIN 00035)
.738L357G15
S/B 73-0027
(1)
RW
1/A
 
..2124M23P18
01-014J, 73-21-20
(1)
Software
(SIN 66H00)
..2124M23P16
S/B 73-0027
(1)
RW
1/A
Operation Codes
RM=Remains
RW=Rework
Change Code
1=One-way interchangeable.
Support Code
A=Old parts will no longer be supplied.
D.Parts Disposition
Rework.
E.Tooling - Price and Availability
 
Tool Number
Description
 
PMAT 2000
Portable maintenance access terminal (PMAT)
 
362A9836P11
CD-ROM reprogramming retrieve software
NOTE:
Tooling and CD-ROM only required for shop loading of software.
(1)Operators performing the EEC software reprogramming must request the following master CD-ROM from BAE Systems Controls Product Support Engineering:
 
Part Number
Name
Manufacturer
 
362A9836P11
CD-ROM, EEC Software ARINC 615 and 615A load disk for PDL loading and for DLCS loading
FADEC International C/O BAE Systems Controls Inc.
NOTE:
The master CD-ROMs will be provided at no charge. A "REQUEST FOR ENGINE CONTROL SOFTWARE" form is available from BAE Systems Controls web site at http://www.baesystems-ps.com/cas/. The site provides two on-line options. The first allows you to automatically e-mail your request. The second option allows you to print a copy to fax: (607) 770-3015.
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 on-board flight deck reprogramming procedures:
(a)Start the on-board loadable software (LSAP). Refer to the Boeing 787 AMM, TASK DMC-B787-A-45-13-00-02A-110B-A, Start the Onboard Data Load Function - Software Operation.
(b)Load the software to the EEC. Refer to the 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. Refer to the 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 Boeing 787 AMM, TASK DMC-B787-A-45-11-00-02A-300D-A, Airplane Component with Loadable Software - Software Check.
NOTE:
The on-board software LSAP is obtained through the Boeing software library.
NOTE:
The Boeing part number for the LSAP is GEC4C-2124-2318.
(2)EEC shop reprogramming and verification procedure:
(a)Prepare a 615 working copy disk of the software. Refer to the instructions embedded on software load disk P/N 362A9836P11.
(b)Reprogram the EEC with the PDL reprogramming disk working copy. Refer to the GEnx-1B EM, 72-00-00 (SPECIAL PROCEDURE 001) and paragraph 4., APPENDIX A - ECU REPROGRAMMING AND NVM RETRIEVAL.
4.APPENDIX A - ECU REPROGRAMMING AND NVM RETRIEVAL
EEC/GSE Software Configuration
GE Software Part Number: 2124M23P18
(1)ECU/EEC
Version Numbers:
 
Description
Address
Value
 
Application Software (AS)
00080008
B1750529
 
Non-Volatile Memory (NVM)
08080008
B1750529
 
Operating System (OS)
00000008
0404016B
 
Avionics Full Duplex Ethernet (AFDX)
00700008
B1750529
 
AML Version
00F00008
01000008
 
GPBOS Version
0A01CDAC
0402B11B
 
AS/OS Interface (in AS)
00080004
00000007
 
AS/OS Interface (in NVM)
08080004
00000007
 
AS/OS Interface (in OS)
00080004
00000007
 
AS/OS Interface (in AFDX)
00700004
00000007
Checksums:
 
Description
Address
Value
 
AS Code
00080018
7F653579
 
NVM Data
08080018
23845DB5
 
OS Code
00000018
E60D925C
 
Bulk NVM Adjustments
0A1DFFFC
1F8B54EA
 
NVM Adjustments
0808579C
065ECDDB
 
AFDX Data
00700018
F421E678
 
AML Code
00F00018
6AD1D54F
 
GPBOS
0A01CDB4
A9B4A242
(2)GSE Software:
 
A.
EEC NVM Utility
Version No. 3.2 (Or Higher)
B.
Decode Definition File
File Name: B175A00.DCD
(3)Master Disk Title: CD-ROM, EEC Operation Software Part Number: 362A9836P11