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Copyright (2016) General Electric Company, U.S.A.
TRANSMITTAL INFORMATION
REVISION 2 TO SERVICE BULLETIN 75-0011
Revision 2 is issued to update the Service Bulletin title and paragraphs 1., PLANNING INFORMATION, 2., MATERIAL INFORMATION, 3., ACCOMPLISHMENT INSTRUCTIONS, and 4., APPENDIX A.
Revision 1 was issued September 25, 2014. The original was issued May 27, 2014. Revision bars in the left margin identify changes.
1.PLANNING INFORMATION
A.Effectivity
* * * FOR GEnx-1B54, -1B58, -1B64, -1B67, -1B70, -1B54/P1, -1B58/P1, -1B64/P1, -1B67/P1, -1B70/P1, -1B70/72/P1, -1B70/75/P1, -1B74/75/P1, -1B75/P1, -1B54/P2, -1B58/P2, -1B64/P2, -1B67/P2, -1B70/P2, -1B70/72/P2, -1B70/75/P2, -1B74/75/P2, -1B75P2, -1B78/P2
This Service Bulletin has been introduced in production to these GEnx-1B engines:
•
GEnx-1B engines, serial numbers 956-330
and up.
These serial numbers are the best available data.
 The anti-ice valve VIN 3291779-4 (P/N 2045M87P04) is affected by this Service Bulletin.
B.Description
 This Service Bulletin provides procedures to rework the old anti-ice valve and introduces a new anti-ice valve part number to production.
C.Compliance
Category 5
 GE recommends that you do this Service Bulletin as soon as the anti-ice valve is removed from the engine.
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.
 This Service Bulletin introduces a new anti-ice valve VIN 63292047-2 (P/N 2045M87P07) to production, which will be common for the GEnx-1B and GEnx-2B engine configurations, and releases a reworked anti-ice valve VIN 3291779-6 (P/N 2045M87P06) to the field. Both configurations of anti-ice valves eliminate the manual lock open feature.
(2)Condition:
 The manual lock feature can be inadvertently locked open which can result in damage to components downstream of the anti-ice valve. The lock open feature is not needed for GEnx applications.
(3)Cause:
 The GEnx-1B anti-ice valve is a derivative of the GP7200 anti-ice valve which required downstream regulation and manual lock open feature. This feature is not needed on the GEnx engines.
(4)Improvement:
 The production and field reworked configuration of the anti-ice valve eliminates the lock open feature and potential maintenance error causing engine damage and disruption in service.
(5)Substantiation:
Substantiation is by comparative analysis
.
F.Approval
The data contained in this Service Bulletin has been reviewed by the appropriate governmental authority 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 anti-ice valve, you will need approximately 1 man-hour for each valve.
H.Weight and Balance
Weight and balance are not changed.
I.References (Use the latest version of these documents)
GEK 114040, GEnx-1B Component Maintenance Manual (CMM), 30-21-51
GEK 112851, GEnx-1B Engine Manual (EM)
GEK 112864, GEnx-1B Engine Illustrated Parts Catalog (EIPC)
GEnx-1B, Boeing 787 Aircraft Maintenance Manual (AMM)
Honeywell Service Bulletin 3291779-30-1897
NOTE:
The reference documents listed below are for the engine manufacturer's internal use only:
 
CID: 573917
 
BPP: 12-72-00-13
J.Publications Affected
GEK 114040, GEnx-1B Component Maintenance Manual (CMM), 30-21-51
GEK 112851, GEnx-1B Engine Manual (EM)
GEK 112864, GEnx-1B Engine Illustrated Parts Catalog (EIPC)
GEnx-1B, Boeing 787 Aircraft Maintenance Manual (AMM)
K.Interchangeability
 The old anti-ice valve VIN 3291779-4 (P/N 2045M87P04) or anti-ice valve VIN 3291779-6 (P/N 2045M87P06), tube P/N 2450M18G01, and tube P/N 2445M62G01 must be replaced as a group with the new anti-ice valve VIN 63292047-2 (P/N 2045M87P07) and tube P/N 2550M88G01.
 The old anti-ice valve VIN 3291779-4 (P/N 2045M87P04) is interchangeable with the new anti-ice valve VIN 3291779-6 (P/N 2045M87P06).
L.Software Accomplishment Summary
Not applicable.
2.MATERIAL INFORMATION
A.Material - Price and Availability
(1)Parts necessary to do this Service Bulletin:
Refer to the attached Honeywell Service Bulletin 3291779-30-1897.
 
Part Number
Qty/ Eng
Part Name
Unit ($) Price
Pkg Qty
Lead Time Days
 
2550M88G01
(1)
Tube
30,350.00
(1)
Q
NOTE:
Prices are provided for planning purposes and are subject to change.
(2)Other Spare Parts:
None.
(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
 
2376M20G05
/G06/G07
/G08/G09
(X)
Propulsor Module Assembly
2376M20G05
/G06/G07
/G08/G09
(X)
RM
-/-
 
2447M20G01
/G02
(X)
Propulsor Module Assembly
2447M20G01
/G02
(X)
RM
-/-
 
.VIN 63292047-2 (2045M87P07)
01-010A, 75-11-30
(1)
Valve, Nacelle
(Old Name)
Valve, Anti-Ice
(New Name)
(SIN 63700)
.VIN 3291779-4
(2045M87P04)
01-010, 75-11-30
(1)
RE
5/A
 
.VIN 3291779-6 (2045M87P06)
01-010B, 75-11-30
(ALT)
Valve, Nacelle
(Old Name)
Valve, Anti-Ice
(New Name)
(SIN 63700)
.VIN 3291779-4
(2045M87P04)
01-010, 75-11-30
(1)
RW
5/A
 
.2550M88G01
01-030B, 75-11-30
(1)
Tube
(SIN 63703)
.2450M18G01
01-030A, 75-11-30
(1)
RE
5/A
 
--
(-)
Tube
(SIN 63708)
.2445M62G01
01-040, 75-11-30
(1)
DE
5/A
Operation Codes
DE=Delete
RE=Replace
RM=Remains
RW=Rework
Change Code
5=Qualified interchangeability. Refer to paragraph 1.K., Interchangeability.
Support Code
A=Old parts will no longer be supplied.
D.Parts Disposition
 Rework the anti-ice valve VIN 3291779-4 (P/N 2045M87P04) to VIN 3291779-6 (P/N 2045M87P06). Refer to the attached Honeywell Service Bulletin 3291779-30-1897.
E.Tooling - Price and Availability
None.
3.ACCOMPLISHMENT INSTRUCTIONS
 A.Rework the Old Anti-Ice Valve VIN 3291779-4 (P/N 2045M87P04) to the Anti-Ice Valve VIN 3291779-6 (P/N 2045M87P06) (On-Wing or In-Shop Procedure).
 (1)Removal of the anti-ice valve (2, Figure 1).
 (a)Remove the anti-ice valve (2). Refer to the GEnx-1B, Boeing 787 AMM, TASK DMC-B787-A-G75-11-01-00A-520A-A or GEnx-1B EM, 72-00-02, DISASSEMBLY 002, CONFIG 01.
 (2)Rework the anti-ice valve (2, Figure 1). Refer to the attached Honeywell Service Bulletin 3291779-30-1897 (latest version).
(3)Install the reworked anti-ice valve (2, Figure 2) VIN 3291779-6 (P/N 2045M87P06) as follows:
 (a)Install the anti-ice valve (2). Refer to the GEnx-1B, Boeing 787 AMM, TASK DMC-B787-A-G75-11-01-00A-720A-A or GEnx-1B EM, 72-00-02, ASSEMBLY 005, CONFIG 01.
 B.Replace Old Anti-Ice Valve VIN 3291779-4 (P/N 2045M87P04) or Anti-Ice Valve VIN 3291779-6 (P/N 2045M87P06) with the New Anti-Ice Valve VIN 63292047-2 (P/N 2045M87P07) (In-Shop Procedure)
 (1)Removal of the anti-ice valve (2, Figure 1).
(a)Remove the tube ( 3, Figure 1) as follows:
 1Disconnect the tube (3) from the anti-ice valve (2).
2Disconnect the tube (3) from the tube (1).
3Remove and discard the tube (3).
 (b)Remove the anti-ice valve (2) as follows:
 1Remove the V-band (01-210, 75-11-30) from the anti-ice valve (2, Figure 1) and tube (1).
 2Remove the V-band (01-210, 75-11-30) that attaches the anti-ice valve (2, Figure 1) to the tube (01-020, 75-11-30).
 3Remove the anti-ice valve (2).
4Remove the seals (01-160, 75-11-30).
(c)Remove the tube (1, Figure 1) as follows:
 1Remove the coupling clamp (clamp) (01-110, 75-11-30) that connects the air tube (tube) (01-180) to the tube (1, Figure 1).
2Remove the machine bolts (bolts) (01-080, 75-11-30) that attach the tube (1, Figure 1) to the support bracket (25-330, 72-00-02) and bracket (01-060, 75-11-30).
3Remove the machine bolts (bolts) (01-090) and retaining strap (strap) (01-230) that attach the tube (1, Figure 1) to the bracket (01-130, 75-11-30).
4Remove the bolts (01-090) that attach the tube (1, Figure 1) to the fan hub frame.
5Remove and discard the tube (1).
 (2)Installation of the new anti-ice valve (2, Figure 2) VIN 63292047-2 (P/N 2045M87P07).
(a)Install the new tube (1) P/N 2550M88G01 as follows:
1Attach the tube (1) to the fan hub frame (01-490, 72-25-00) at the 1:00 o'clock position aft looking forward (ALF), with bolts (01-090, 75-11-30). Hand-tighten the bolts.
2Attach the tube to the support bracket (25-330, 72-00-02) and bracket (01-060) with the bolts (01-080). Hand-tighten the bolts.
3Attach the tube to bracket (01-130) with a strap (01-230) and bolts (01-090). Hand-tighten the bolts.
4Install the seals (01-160) to the tube (1, Figure 2) aft end down.
5Install the clamp (01-110, 75-11-30) that connects the tube (01-180) to the tube (1, Figure 2).
 (b)Install the new anti-ice valve (2, Figure 2) as follows:
 1Install the anti-ice valve to the tube (1, Figure 2) and tube (01-020, 75-11-30) with the V-bands (01-210). Install the V-bands with the nut assembly towards the 3:00 o'clock position (the nut must point forward). Install the V-bands loosely.
(c)Torque the bolts (01-090) to 106-124 lb in. (12.0-14.0 N.m).
(d)Torque the bolts (01-080) to 106-124 lb in. (12.0-14.0 N.m).
(e)Torque the V-band (01-210, 75-11-30) that attaches the tube (1, Figure 2) to the valve, to 106-124 lb in. (12.0 - 14.0 N.m). Use a mallet and lightly tap the V-band while torquing.
(f)Torque the V-band (01-210, 75-11-30) that attaches the tube (01-020, 75-11-30) to the valve, to 106-124 lb in. (12.0-14.0 N.m). Use a mallet to tap the V-band while torque is done.
 C.Table of Permitted Combination of Anti-Ice Valve-Tube Configurations
  CAUTION:
DO NOT INSTALL A CAP ON ANTI-ICE VALVE P/N 2045M87P06 DOWNSTREAM THE SENSE PORT OR FAILURE OF THE ANTI-ICE VALVE AND A RESULTING MAINTENANCE MESSAGE "FAILED CLOSED" CAN OCCUR. THE ANTI-ICE VALVE P/N 2045M87P06 MUST BE INSTALLED TOGETHER WITH THE TUBE P/N 2445M62G01.
 (1)For the compliance with this Service Bulletin, make sure that one of the permitted configurations that follow is installed on the engine:
 
Anti-Ice Valve
Tube
Tube
 
P/N 2045M87P06
P/N 2437M29G01
P/N 2445M62G01
 
P/N 2045M87P06
P/N 2450M18G01
P/N 2445M62G01
 
P/N 2045M87P07
P/N 2550M88G01
Removed
Removal of the Booster Anti-Ice Valve System
Figure 1   (Sheet 1)
Removal of the Booster Anti-Ice Valve System
Figure 1   (Sheet 2)
Removal of the Booster Anti-Ice Valve System
Figure 1   (Sheet 3)
Removal of the Booster Anti-Ice Valve System
Figure 1   (Sheet 4)
Installation of the Booster Anti-Ice Valve System
Figure 2   (Sheet 1)
Installation of the Booster Anti-Ice Valve System
Figure 2   (Sheet 2)
Installation of the Booster Anti-Ice Valve System
Figure 2   (Sheet 3)
Installation of the Booster Anti-Ice Valve System
Figure 2   (Sheet 4)
4.APPENDIX A
VENDOR SERVICE BULLETIN SUMMARY TABLE
 
Vendor Service Bulletin Title:
ICE AND RAIN PROTECTION - NACELLE ANTI-ICE VALVE - Rework Nacelle Anti-Ice Valve, PN 3291779-4 to PN 3291779-6
 
GE Service Bulletin Number:
GEnx-1B S/B 75-0011, Revision 2
 
Supplier Service Bulletin Number:
3291779-30-1897
Vendor:
Honeywell
 
Category:
5
Vendor CAGE Code:
59364
 
Component Maintenance Manual (CMM):
30-21-51
CMM CAGE Code:
59364
PARTS AFFECTED
 
New GE Part Number
Old GE Part Number
New Vendor Part Number
Old Vendor Part Number
Part Name
 
2045M87P06
2045M87P04
3291779-6
3291779-4
Anti-Ice Valve
For interchangeability and/or material support, refer to the attached Honeywell Service Bulletin 3291779-30-1897 (latest version).