ENGINE - Accessory Drive Module (72-00-05) - Rework of Accessory Shield Assembly for TBC Protection Improvement

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September 22, 2015 CF6-80E1 S/B 72-0525 PAGE 1 of 9ENGINE - Accessory Drive Module (72-00-05) - Rework of Accessory Shield Assembly for TBC Protection Improvement

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 CF6-80E1A2, A3, A4, A4/B This Service Bulletin is applicable to all CF6-80E1 engines. This Service Bulletin has been introduced in production to these CF6-80E1 engines:



# . CF6-80E1 engines, serial numbers 811-743 and up. These serial numbers are the best available data. The existing accessory shield assembl y part numbers that are listed in Table 1 below are affected by this Service Bulletin: Table 1 - Existing Part Numbers of Accessory Shield Assemblies 1802M22G02 1802M22G03 1802M24G02 1825M61G01 1825M61G02 1825M61G03 B. D e s c r i p t i o n This Service Bulletin incorporates seven thermal barrier coated (TBC) fi re shields (plates) in the accessory shield assembly. These TBC plates will be installed in new accessory shield assemblies. The affected accessory shield assemblies will be reworked to incorporate the seven TBC plates in the fi eld. This Service Bulletin also provides instru ctions to rework the current accessory shield assembly using Repair Document (RD) 032-562. C. C o m p l i a n c e Category 3 GE recommends that you do this Service Bulletin at the next shop visit of the engine/module. N O T E : This Service Bulletin can be accomplished 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 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.

September 22, 2015 CF6-80E1 S/B 72-0525 PAGE 2 GE PROPR IETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.ENGINE - Accessory Drive Module (72-00-05) - Rework of Accessory Shield Assembly for TBC Protection Improvement

E. R e a s o n (1) Objective: To rework parts and improve reliability. (2) Condition: The old accessory shield assembly incorporates three TBC plates. However, one event caused secondary damage in the accessory compartment integrated drive generator (IDG) from direct impingement of a B-sump fi re event caused by improper maintenance. (3) Cause: The old titanium accessory shield assembly leaves a large area above the sensitive accessories such as the IDG and the main fuel pump (MFP) without adequate protection. (4) Improvement: The new accessory shield assembly was redesigned to provide coating coverage on a more extensive area on top of the accessory heat shield. Existing accessory shield assemblies in the fi eld will be reworked to incorporate the seven TBC plates that reduce the risk of high temperature air/gas entering to the accessory compartment and creating secondary hazards. (5) Substantiation: Substantiation is by analysis and comparative analysis. F. A p p ro v a l The data contained in this Service Bulletin has been reviewed by the appropriate governmental authority and the repair(s) and modi fi cation(s) herein comply with the applicable Aviation Regulations and are 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 accessory shield assembly, you will need approximately 5 man-hours to do the rework portion of this Service Bulletin. H. We i g h t a n d B a l a n c e The complete compliance with this Servi ce Bulletin increases weight by 5.2 lb (2.4 kg).

September 22, 2015 CF6-80E1 S/B 72-0525 PAGE 3 GE PROPR IETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.ENGINE - Accessory Drive Module (72-00-05) - Rework of Accessory Shield Assembly for TBC Protection Improvement

I. R efe re n c e s (Use the latest version of these documents) GEK 99376, CF6-80E1 Engine Manual (EM) GEK 99378, CF6-80E1 Illustrated Parts Catalog (IPC) Repair Document (RD) 032-562 (S1 or higher), Accessory Gearbox Heatshield - Accessory Shield Assembly - Alteration - Thermal Barrier Coating Improvement N O T E 1 : Get RDs from GE: E-mail: geae.aoc@ge.com OR GE Aviation M/D Rm. 285 One Neumann Way Cincinnati, OH 45215 U.S.A. OR International Phone: (513) 552-3272 U.S.A. Phone: 877-432-3272 N O T E 2 : The reference documents listed below are for the engine manufacturer's internal use only: CID: 569425, 569461 BPP: 12-72-00-07 J. P u b l i ca t i o n s Af fe cte d GEK 99376, CF6-80E1 Engine Manual (EM) GEK 99378, CF6-80E1 Illustrated Parts Catalog (IPC) K. I n te rc h a n g e a b i l i ty The old and new accessory shield assembly con fi gurations are physically interchangeable. However, functional interchangeability is impacted due to the additional sump fi re protection of the new TBC plates and attaching hardware (bolts, self-locking nuts) required. N O T E : The reworked accessory shield assembly is reidenti fi ed per RD 032-562 instructions into the new part number. 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.
September 22, 2015 CF6-80E1 S/B 72-0525 PAGE 4 GE PROPR IETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.ENGINE - Accessory Drive Module (72-00-05) - Rework of Accessory Shield Assembly for TBC Protection Improvement

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 c e 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 ce P kg Q ty L e a d T i m e D a ys 2608M18P01 (1) Shield, Fire 1,853.00 (1) Quote 2608M19P01 (1) Shield, Fire 1,853.00 (1) Quote 2608M20P01 (1) Shield, Fire 3,103.00 (1) Quote 2608M21P01 (1) Shield, Fire 1,832.00 (1) Quote 2608M22P01 (1) Shield, Fire 1,853.00 (1) Quote 2608M23P01 (1) Shield, Fire 1,853.00 (1) Quote 2608M24P01 (1) Shield, Fire 1,853.00 (1) Quote AN123480* (12) Rivet NP (-) -- J1092P03 (15) Nut, Self-Locking 7.50 (50) 5 MS9556-06* (25) Bolt, Double Hexagon Head Machine NP (-) --

*Part not supplied by GE Engine Services Distribution L.L.C. Procure through local purchase. NP = Not Provisioned N O T E : Prices are provided for planning purposes and are subject to change. (2) Other Spare Parts:

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 ce P kg Q ty L e a d T i m e D a ys 1825M61G04 (1) Shield Assembly, Accessory Quote (1) Quote 1802M22G04 (1) Shield, Heat Accessory Quote (1) Quote

N O T E : Prices are provided for planning purposes and are subject to change. (3) Consumables: Refer to RD 032-562. September 22, 2015 CF6-80E1 S/B 72-0525 PAGE 5 GE PROPR IETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.ENGINE - Accessory Drive Module (72-00-05) - Rework of Accessory Shield Assembly for TBC Protection Improvement

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). 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 (PRODUCTION) 1457M85G01/G02 (X) Accessory Drive Assembly 1457M85G01/G02 (X) RM -/- .1825M61G04 (1) Shield Assembly, Accessory .1825M61G03 72-00-05-45-160 (1) RW/RI 5/A ..1802M22G04 (1) Shield, Heat Accessory ..1802M22G03 72-66-00-01-010 (1) RW 5/A ...MS20615-5M5 (93) Rivet ...MS20615-5M5 72-66-00-05-270 (101) QTC 5/E

-- (-) Mount ...1802M22P037A 72-66-00-05-070 (1) DE 5/A

-- (-) Shield, Fire ..1378M89G01 72-66-00-01-030 (1) DE 5/A

-- (-) Shield, Fire ..1883M99P001A 72-66-00-01-030 (ALT) DE 5/A ..MS9556-06 (25) Bolt, Double Hexagon Head Machine ..MS9556-06 72-66-00-01-112 72-66-00-01-150 (13) QTC 5/-

..J1092P03 (15) Nut, Self-Locking ..J1092P03 72-66-00-01-060 (3) QTC 5/- ..AS3486-09 (ALT) Nut, Self-Locking -- (-) AD 5/-

-- (-) Plate, Heat ..1991M54P01 72-66-00-01-105 (1) DE 5/A
..2608M18P01 (1) Shield, Fire -- (-) AD 5/- ..2608M19P01 (1) Shield, Fire -- (-) AD 5/- ..2608M20P01 (1) Shield, Fire -- (-) AD 5/- ..2608M21P01 (1) Shield, Fire -- (-) AD 5/- ..2608M22P01 (1) Shield, Fire -- (-) AD 5/- ..2608M23P01 (1) Shield, Fire -- (-) AD 5/- ..2608M24P01 (1) Shield, Fire -- (-) AD 5/-

September 22, 2015 CF6-80E1 S/B 72-0525 PAGE 6 GE PROPR IETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.ENGINE - Accessory Drive Module (72-00-05) - Rework of Accessory Shield Assembly for TBC Protection Improvement

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 ..AN123480 (12) Rivet -- (-) AD 5/- (FIELD ONLY) 1457M85G01/G02 (X) Accessory Drive Assembly 1457M85G01/G02 (X) RM -/- .2628M55G01 (1) Shield Assembly, Accessory .1825M61G03 72-00-05-45-160 (1) RW/RI 5/A

O p e ra t i o n C o d e s AD = Add DE = Delete QTC = Quantity Change RI = Reidentify RM = Remains RW = Rework C h a n g e C o d e s 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 Rework the old accessory shield assembly. Refer to RD 032-562. Discard the old rivets, sel f-locking nuts, and bolts. E. T o o l i n g - P r i ce a n d Ava i l a b i l i ty Refer to RD 032-562. 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) Remove and disassemble the accessory shield assemblies (Figure 1) listed in paragraph 1.A., E f fe ct i v i ty , Table 1 at the next shop visit. Refer to the CF6-80E1 EM, 72-00-05, DISASSEMBLY 001. (2) Do an inspection of the accessory shield assembly (Figure 1). Refer to the CF6-80E1 EM, 72-66-01, INSPECTION 001 and 72-66-02, INSPECTION 001. (3) Rework the existing accessory shield assembly P/N 1825M61G03. Refer to RD 032-562.
September 22, 2015 CF6-80E1 S/B 72-0525 PAGE 7 GE PROPR IETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.ENGINE - Accessory Drive Module (72-00-05) - Rework of Accessory Shield Assembly for TBC Protection Improvement
(4) Assemble and install the reworked accessory shield assembly (Figure 1). Refer to the CF6-80E1 EM, 72-00-05, ASSEMBLY 001.

September 22, 2015 CF6-80E1 S/B 72-0525 PAGE 8 GE PROPR IETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.ENGINE - Accessory Drive Module (72-00-05) - Rework of Accessory Shield Assembly for TBC Protection Improvement

Location of Accessory Shield Assembly Figure 1

September 22, 2015 CF6-80E1 S/B 72-0525 PAGE 9 GE PROPR IETARY INFORMATION - Subject to the restrictions on the cover or fi rst page.