AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets

GE PROPRIETARY INFORMATIONThe information contained in this document is GE proprietary information and is disclosed in confi dence. It is the property of GE and shall not be used, disclosed to others or reproduced withoutthe 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, modi fi cations, spare parts, designs, or con fi guration 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 (2013) General Electric Company, U.S.A.

January 30, 2013 GEnx-2B S/B 75-0008 Rev ision 02, May 30, 2013 PAGE 1 of 17AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets

January 30, 2013 GEnx-2B S/B 75-0008 Revision 02, May 30, 2013 PAGE 2 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets

GE PROPRIETARY INFORMATION The information contained in this document is GE proprietary information and is disclosed in con fi dence. 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, modi fi cations, spare parts, designs, or con fi guration 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 (2013) General Electric Company, U.S.A.
TRANSMITTAL INFORMATION REVISION TO SERVICE BULLETIN 75-0008 Revision 2 is issued to update paragraphs 2., M A T E R I A L I N F O R M A T I O N and 3., AC C O M P L I S H M E N T I N S T R U C T I O N S

. Revision 1 was issued February 4, 2013. The original was issued January 30, 2013. Revision bars in the left margin identify changes. 1. P LA N N I N G I N F O R M A T I O N A. E f fe ct i v i ty GEnx-2B67, -2B67B This Service Bulletin is applicable to these GEnx-2B engines:



# . GEnx-2B engines, serial numbers 959-101 through 959-332. This Service Bulletin has been introduced in production to these GEnx-2B engines:



# . GEnx-2B engines, serial numbers 959-333 and up. These serial numbers are the best available data. N O T E : This Service Bulletin may be accomplished on affected engine serial numbers at the airframer prior to aircraft delivery. The old support bracket P/N 2469M46G01 is affected by this Service Bulletin.

January 30, 2013 GEnx-2B S/B 75-0008 Rev ision 02, May 30, 2013 PAGE 3 of 17AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets

B. D e s c r i p t i o n This Service Bulletin releases new support brackets P/N 2550M03G01, P/N 2548M66G01, P/N 2548M67P01, P/N 2550M18G01, and P/N 2550M17P01 to the BAI air duct assembly to constrain the BAI system motion. Completion of this Service Bulletin provides terminating action for Service Bulletin 75-0006, which requires to repeat the inspection of the BAI air duct. C. C o m p l i a n ce Category 5 GE recommends that you do this Service Bulletin as soon as the BAI air duct P/N 2469M32G01 is removed from the engine. N O T E : This Service Bulletin can be accomplished on wing. 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 operator’s fl eet. D. C o n c u r re n t R e q u i re m e n ts None. E. R e a s o n (1) Objective: To introduce new parts, improve reliability, improve maintainability, and reduce signi fi cant events. To provide a fi eld fi x by a set of brackets and installation procedures to prevent cracks of the BAI duct P/N 2469M32G01 and restores intended support of the BAI valve system within acceptable levels of displacement and stress to components of the assembled system. This fi eld fi x provides for termination of the compliance as described in Service Bulletin 75-0006. (2) Condition: Cracks can occur at the forward end of the BAI duct P/N 2469M32G01 and in the aft bend. (3) Cause: Cracks in anti-ice duct P/N 2469M32G01 are attributed to resonant modes of the BAI valve system coincident to response to higher vibration modes.

January 30, 2013 GEnx-2B S/B 75-0008 Revision 02, May 30, 2013 PAGE 4 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets

(4) Improvement: The proposed set of brackets constrain motion and shift the BAI valve system resonant modes to the low-input frequency range to avoid the higher vibration modes. (5) Substantiation: Substantiation is by analysis and comparative analysis. F. A p p ro v a l This Service Bulletin has been reviewed by the FAA and the repair(s) and modi fi cation(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. M a n p owe r After you get access to the BAI valve, you will need approximately 4 man-hours for each engine or component. H. We i g h t a n d B a l a n c e The complete compliance with this Service Bulletin increases weight by 1.48 lb (0.67 kg). I. R efe re n c e s (Use the latest version of these documents) GEK 114119, GEnx-2B Engine Manual (EM) GEK 114122, GEnx-2B Engine Illustrated Parts Catalog (EIPC) Boeing 747-8 Aircraft Maintenance Manual (AMM), D633U8101-TBC GEnx-2B S/B 75-0006, AIR - Booster Anti-Ice Valve (75-11-30) - Inspection of Booster Anti-Ice Air Duct N O T E : The reference documents listed below are for the engine manufacturer's internal use only: CID: 573755 BPP: 12-75-00-10

J. P u b l i ca t i o n s Af fe cte d GEK 114119, GEnx-2B Engine Manual (EM) GEK 114122, GEnx-2B Engine Illustrated Parts Catalog (EIPC) Boeing 747-8 Aircraft Maintenance Manual (AMM), D633U8101-TBC
January 30, 2013 GEnx-2B S/B 75-0008 Revision 02, May 30, 2013 PAGE 5 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets

K. I n te rc h a n g e a b i l i ty Proposed and superseded hardware must be introduced in complete engine sets. Mixing the details of the proposed and superseded hardware on the same engine is not permitted. L. S of tw a re Ac co m p l i s h m e n t S u m m a ry Not applicable. 2. M A T E R I A L I N F O R M A T I O N A. M a te r i a l

- P r i ce a n d A v a i l a b i l i ty (1) Parts necessary to do this Service Bulletin:

P a rt N u m b e r Q ty/ E n g P a rt N a m e U n i t ( $ ) P r i c e P kg Q ty L e a d T i m e D a ys SPK844G01 (1) Spare Kit Quote (X) Quote J222P013* (1) Packing, Preformed NP (-) -- J222P015* (1) Packing, Preformed NP (-) -- *Part not supplied by GE Engine Services Distribution L.L.C. Procure through local purchase. NP = Not Provisioned N O T E 1 : The following parts are included in the kit P/N SPK844G01. It is not necessary to order these parts separately.

P a rt N u m b e r Q ty/ E n g P a rt N a m e U n i t ( $ ) P r i c e P kg Q ty L e a d T i m e D a ys AS3237-08 (2) Bolt, Machine Quote (-) -- AS3237-16 (7) Bolt, Machine Quote (-) -- 1519M13P12 (2) Clamp, Hose 15.25 (1) 30 2550M03G01 (1) Bracket, Support 541.00 (1) 30 2548M66G01 (1) Bracket, Valve 185.25 (1) 30 2548M67P01 (1) Bracket, Valve 185.25 (1) 30 2550M18G01 (1) Bracket, Valve 185.25 (1) 30 2550M17P01 (1) Bracket, Valve 185.25 (1) 30
January 30, 2013 GEnx-2B S/B 75-0008 Revision 02, May 30, 2013 PAGE 6 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets

N O T E 2 : Prices are provided for planning purposes and are subject to change. (2) Other Spare Parts: N O T E 1 : These part numbers are only required if the BAI duct P/N 2469M32G01 is required to be replaced. These are not included in kit P/N SPK844G01.

P a rt N u m b e r Q ty/ E n g P a rt N a m e U n i t ( $ ) P r i c e P kg Q ty L e a d T i m e D a ys AS1895/23-150* (2) Seal, Ring NP (-) -- 2469M32G01 (1) Duct, Bai Air 10,120.00 (1) 30 * Part not supplied by GE Engine Services Distribution L.L.C. Procure through local purchase. NP = Not Provisioned N O T E 2 : Prices are provided for planning purposes and are subject to change. (3) Consumables: None. B. I n d u s t ry S u p p o rt I n f o r m a t i o n Contact your Customer Support Manager (CSM) for industry support information. C. C o n fi g u ra t i o n C h a rt

N ew P a rt N u m b e r Q ty/ E n g P a rt N a m e O l d P a rt N u m b e r / I P C L o ca t i o n Q ty/ E n g O p C o d e C h g / S p rt C o d e 2330M20G07-G10 (X) Assembly, Propulsor Module 2330M20G07-G10 (X) RM -/- .2550M03G01 79-22-30-05-296A (1) Bracket, Support (SIN 46112) .2469M46G01 79-22-30-05-296 (1) RE 5/A .2548M66G01 75-11-30-01-210 (1) Bracket, Valve (SIN 6371C) -- (-) AD 5/-
.2548M67P01 75-11-30-01-220 (1) Bracket, Valve (SIN 6371D) -- (-) AD 5/- .2550M18G01 75-11-30-01-230 (1) Bracket, Valve (SIN 6371E) -- (-) AD 5/-
.2550M17P01 75-11-30-01-240 (1) Bracket, Valve (SIN 6371F) -- (-) AD 5/-

January 30, 2013 GEnx-2B S/B 75-0008 Revision 02, May 30, 2013 PAGE 7 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets

N ew P a rt N u m b e r Q ty/ E n g P a rt N a m e O l d P a rt N u m b e r / I P C L o ca t i o n Q ty/ E n g O p C o d e C h g / S p rt C o d e .AS3237-08 75-11-30-01-010A (6) Bolt, Machine (SIN 63721) .AS3237-08 75-11-30-01-010 (4) QTC 5/-

-- (-) Bolt, Machine (SIN 63722) .AS3237-12 75-11-30-01-040 (4) DE 5/E .AS3237-16 75-11-30-01-045 (7) Bolt, Machine (SIN 6372A) -- (-) AD 5/- .AS3237-14 79-22-30-05-040A (2) Bolt, Machine (SIN 99221) .AS3237-14 79-22-30-05-040 (4) QTC 5/E O p e ra t i o n C o d e s AD = Add DE = Delete RE = Replace RM = Remains QTC = Quantity Change C h a n g e C o d e 5 = Quali fi ed interchangeability. Refer to paragraph 1.K., I n te rc h a n g e a b i l i ty
. S u p p o rt C o d e s A = Old parts will no longer be supplied. E = Old parts will be supplied, and can be used at other engine locations. D. P a rts D i s p o s i t i o n Discard old parts. E. T o o l i n g - P r i ce a n d Ava i l a b i l i ty None. 3. A C C O M P L I S H M E N T I N S T R U C T I O N S A. G e n e ra l (1) Read all instructions in this Service Bulletin before work begins on the engine. (2) If a new BAI air duct (01-030, 75-11-30) has been installed per GEnx-2B S/B 75-0006 in the engine and has 25 cycles since new (CSN) or less, do not remove the BAI air duct (01-030), unless the inspection in paragraph 3.A.(4) is unsatisfactory. (3) Remove the core compartment cooling (CCC) valve (01-010 ,75-24-20, Figure 1 ) for accessibility. Refer to the GEnx-2B Boeing 747-8 AMM, TASK 75-23-01-000-801-G00. (4) Do an inspection of the BAI air duct (01-030, 75-11-30) and adjacent brackets support as follows: January 30, 2013 GEnx-2B S/B 75-0008 Revision 02, May 30, 2013 PAGE 8 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets

N O T E : If the BAI air duct (01-030) is removed in paragraph 3.A.(2), the BAI air duct (01-030) inspection in paragraph 3.A.(4)(a) can be skipped. (a) Do an inspection of the BAI air duct (01-030). Refer to the GEnx-2B Boeing 747-8 AMM, TASK 75-11-00-200-801-G00, and as follows: N O T E : A fl exible borescope can be used to help to access to the area and give a better visibility by magni fi cation. This is an optional requirement. 1 Do an inspection of the BAI air duct (01-030) for circumferential cracks at the forward end of the BAI air duct (01-030) close to the BAI valve (01-090). 2 Do an inspection of the entire length of the BAI air duct (01-030) for cracks. No cracks are permitted in the BAI air duct. (b) Do an inspection of the adjacent brackets. Refer to the GEnx-2B Boeing 747-8 AMM, SUBTASK 70-00-05-210-021-G00. (5) Remove the BAI valve (01-090, Figure 1 ) for accessibility. Refer to the GEnx-2B Boeing 747-8 AMM, TASK 75-11-01-000-801-G00. (6) Remove the BAI air duct (01-030, Figure 1 ). Refer to the GEnx-2B Boeing 747-8 AMM, TASK 75-11-03-000-801-G00. (7) Replace the support bracket (1, Figure 1 ) as follows: (a) Remove the support bracket (1) as follows: 1 Remove the two machine bolts (05-030, 79-22-30) that attach the retaining strap (05-070) and the oil tube (05-011) to the support bracket (1). Keep this hardware for future reinstallation. 2 Remove the retaining strap (05-070). Keep this hardware for future reinstallation. 3 Remove the machine bolt (10-100, 73-11-40) from the cushioned loop clamp (10-110). Keep this hardware for future reinstallation. 4 Remove the machine bolt (10-080) from the cushioned loop clamp (10-090). Keep this hardware for future reinstallation. 5 Remove the two machine bolts (05-310, 79-22-30) that attach the support bracket (1) to the support bracket (33-240, 72-00-02). Keep this hardware for future reinstallation. 6 Remove the machine bolts (01-100, 75-11-30) and the machine bolts (05-060A, 79-22-30) that attach the support bracket (1) to the forward compressor stator case (15-011, 72-32-00). 7 Remove and discard the support bracket (1) .
January 30, 2013 GEnx-2B S/B 75-0008 Revision 02, May 30, 2013 PAGE 9 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets

(b) Install the new support bracket (1, Figure 2 ) as follows: 1 Attach the support bracket (1) to the forward compressor stator case (15-011, 72-32-00) with machine bolts (05-060A, 79-22-30) and (01-100, 75-11-30). Do not tighten the machine bolts (05-060A, 79-22-30) and (01-100, 75-11-30) at this time. 2 Torque the machine bolts (05-060A, 79-22-30) and (01-100, 75-11-30) to 106-124 lb in. (12.0-14.0 N·m). 3 Install the support bracket (1) to the support bracket (33-240, 72-00-02) with the two machine bolts (05-310, 79-22-30). Do not tighten the machine bolts (05-310) at this time. 4 Install the retaining strap (05-070) and the oil tube (05-011) to the support bracket (1) with the two machine bolts (05-030). Do not tighten the machine bolts (05-030) at this time. 5 Install the cushioned loop clamps (10-110, 73-11-40) and (10-090) to the support bracket (1) with the machine bolts (10-100) and (10-080) respectively. Do not tighten the machine bolts (10-080) and (10-100) at this time. 6 Torque the machine bolts (05-310, 79-22-30) to 106-124 lb in. (12.0-14.0 N·m). 7 Torque the machine bolts (10-100, 73-11-40) and (10-080) to 32-38 lb in. (3.6-4.3 N·m). (c) Install the valve brackets (2, 3, 4, and 5) as follows. Refer to Figure 2. 1 Remove and discard the two inboard machine bolts (05-040, 79-22-30) that attach the oil tube (05-011) to the to the fan hub frame case (01-490, 72-26-00). 2 Attach the valve bracket (2) to the 4- fl ange of the oil tube (05-011, 79-22-30) and the fan hub frame case (01-490, 72-26-00) with the two machine bolts (6). Do not tighten the machine bolts (6) at this time. 3 Remove and discard the four machine bolts (01-040, 75-11-30) that attach the BAI air duct (01-180) and BAI air duct (01-030) to the BAI bracket (01-120) and BAI bracket (01-110). 4 Install the valve bracket (3 and 4) as follows:
a Attach the valve bracket (3) to the valve bracket (2) with the two machine bolts (7). Do not tighten the machine bolts (8) at this time. b Attach the valve brackets (3 and 4) to the BAI air duct (01-180) and BAI bracket (01-120) with the two machine bolts (6). Do not tighten the machine bolts (6) at this time. January 30, 2013 GEnx-2B S/B 75-0008 Revision 02, May 30, 2013 PAGE 10 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets

5 Install the valve bracket (5) as follows:
a Attach the valve bracket (5) to the BAI air duct (01-030) and BAI bracket (01-110) with the two machine bolts (6). Do not tighten the machine bolts (6) at this time. 6 Install the valve brackets (4) and (5) to the support bracket (1) as follows:
a Attach the valve brackets (4) and (5) support bracket (1) with one machine bolt (6). 7 Torque the machine bolts (6) to 106-124 lb in. (12.0-14.0 N.m). 8 Torque the machine bolts (7) to 106-124 lb in. (12.0-14.0 N.m). (d) Install the BAI air duct (01-030, Figure 1 ). Refer to the GEnx-2B Boeing 747-8 AMM, TASK 75-11-03-400-801-G00. (e) Install the BAI valve (01-090, Figure 1 ). Refer to the GEnx-2B Boeing 747-8 AMM, TASK 75-11-01-400-801-G00. (f) Install the CCC valve (01-010, 75-24-20). Refer to the GEnx-2B Boeing 747-8 AMM, 75-23-01-400-801-G00. (g) Do a booster anti-ice system test. Refer to the GEnx-2B Boeing 747-8 AMM, TASK 75-11-00-700-801-G00. (h) Do an actuators operational test. Refer to the GEnx-2B Boeing 747-8 AMM, Test No. 15 - Engine Actuators Operational Test, TASK 71-00-00-730-803-G00. N O T E : Test No. 3 - Wet-Motor Leak Test, TASK 71-00-00-790-805-G00 is optional. (i) Do an idle-leak test. Refer to the GEnx-2B Boeing 747-8 AMM, Test No. 4 Idle-Leak Test, TASK 71-00-00-790-804-G00. (j) Refer to GEnx-2B Boeing 747-8 FIM to correct defects.

January 30, 2013 GEnx-2B S/B 75-0008 Revision 02, May 30, 2013 PAGE 11 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets

NOTE: ALL IPC REFERENCES FROM 79-22-30 UNLESS SPECIFIED DIFFERENTLY. LEGEND: 1. SUPPORT BRACKET REPLACE OLD PART WITH P/N 2550M03G01

SUPPORT BRACKET (33-240, 72-00-02) BAI AIR DUCT (01-030, 75-11-30)

MACHINE BOLT (01-100, 75-11-30) MACHINE BOLT (01-040, 75-11-30) BAI VALVE (01-090, 75-11-30) MACHINE BOLT (05-310) 1 RETAINING STRAP (05-070) CCC VALVE (01-010, 72-24-20)

MACHINE BOLT (05-030)

OIL TUBE (05-011) CUSHIONED LOOP CLAMP (10-110, 73-11-40) MACHINE BOLT (10-100, 73-11-40)

CUSHIONED LOOP CLAMP (10-090, 73-11-40) MACHINE BOLT (10-080, 73-11-40) MACHINE BOLT (05-060A)

FORWARD COMPRESSOR STATOR CASE (15-011, 72-32-00)

OLD CONFIGURATION 1368830-00 BAI Air Duct Bracket Support Introduction Figure 1

January 30, 2013 GEnx-2B S/B 75-0008 Revision 02, May 30, 2013 PAGE 12 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets

LEGEND: 2. VALVE BRACKET P/N 2548M66G01 3. VALVE BRACKET P/N 2548M67P01 4. VALVE BRACKET P/N 2550M18G01 5.VALVE BRACKET P/N 2550M17P01

NEW CONFIGURATION 5 4 3

2

BAI VALVE (01-090) 1 REF 

### C B

NOTE: ALL IPC REFERENCES FROM 75-11-30 UNLESS SPECIFIED DIFFERENTLY.



### E

1368831-00 BAI Air Duct Bracket Support Introduction Figure 2, ( Sheet 1 of 5 )

January 30, 2013 GEnx-2B S/B 75-0008 Revision 02, May 30, 2013 PAGE 13 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets

RETAINING STRAP (05-070) 1 REF

MACHINE BOLT (05-310)

BAI VALVE (01-090, 75-11-30)

MACHINE BOLT (01-100, 75-11-30)
FORWARD COMPRESSOR STATOR CASE (15-011, 72-32-00) SUPPORT BRACKET (33-240, 72-00-02)

MACHINE BOLT (05-060A)

CUSHIONED LOOP CLAMP (10-090, 73-11-40) MACHINE BOLT (10-080, 73-11-40) CUSHIONED LOOP CLAMP (10-110, 73-11-40) MACHINE BOLT (10-100, 73-11-40) OIL TUBE (05-011) MACHINE BOLT (05-030)



## B NOTE: ALL IPC REFERENCES FROM 79-22-30 UNLESS SPECIFIED DIFFERENTLY. 1368832-00 BAI Air Duct Bracket Support Introduction Figure 2, ( Sheet 2 )

January 30, 2013 GEnx-2B S/B 75-0008 Revision 02, May 30, 2013 PAGE 14 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets



## C LEGEND: 6. MACHINE BOLT REPLACE OLD PART WITH P/N AS3237-16 (QTY-7) 7. MACHINE BOLT P/N AS3237-08 (QTY-2)

NOTES: ALL IPC REFERENCES FROM 75-11-30 UNLESS SPECIFIED DIFFERENTLY.

2 REF

7

3 REF BAI VALVE (01-090) OIL TUBE (05-011, 79-22-30) FAN HUB FRAME (01-490, 72-26-00)

6



### D

1368833-00 BAI Air Duct Bracket Support Introduction Figure 2, ( Sheet 3 )

January 30, 2013 GEnx-2B S/B 75-0008 Revision 02, May 30, 2013 PAGE 15 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets

NEW CONFIGURATION

NOTES: ALL IPC REFERENCES FROM 75-11-30 UNLESS SPECIFIED DIFFERENTLY. OLD CONFIGURATION 

## D

D BAI AIR DUCT (01-030)

6 REF

BAI BRACKET (01-110) BAI BRACKET (01-120) 6 REF 3 REF BAI AIR DUCT (01-180) BAI BRACKET (01-110) MACHINE BOLT (01-040) BAI AIR DUCT (01-030) BAI AIR DUCT (01-180)

MACHINE BOLT (01-040)

BAI BRACKET (01-120)

1368855-00 BAI Air Duct Bracket Support Introduction Figure 2, ( Sheet 4 )

January 30, 2013 GEnx-2B S/B 75-0008 Revision 02, May 30, 2013 PAGE 16 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.AIR - Booster Anti-Ice Valve (75-11-30) - Introduction of Booster Anti-Ice Air Duct Support Brackets

BAI VALVE (01-090)

BAI AIR DUCT (01-030)

6 REF

BAI BRACKET (01-110)

5 REF 1 REF

6 REF 4 REF 3 REF 6 REF BAI AIR DUCT (01-180) BAI BRACKET (01-120)



## E NOTE: ALL IPC REFERENCES FROM 75-11-30 UNLESS SPECIFIED DIFFERENTLY. 1368834-00 BAI Air Duct Bracket Support Introduction Figure 2, ( Sheet 5 )

January 30, 2013 GEnx-2B S/B 75-0008 Revision 02, May 30, 2013 PAGE 17 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.