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

TBC Protection Improvement

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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

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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 (2015) General Electric Company, U.S.A.

GE Aviation authorizes the Federal Aviation Administration to incorporate this document by reference

in an Airworthiness Directive.

September 22, 2015 CF6-80E1 S/B 72-0525

PAGE 1 of 9
ENGINE - Accessory Drive Module (72-00-05) - Rework of Accessory Shield Assembly for

TBC Protection Improvement

1. PLANNING INFORMATION

A. Effectivity

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 assembly 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. Description

This Service Bulletin incorporates seven thermal barrier coated (TBC) fire 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 field.

This Service Bulletin also provides instructions to rework the current accessory

shield assembly using Repair Document (RD) 032-562.

C. Compliance

Category 3

GE recommends that you do this Service Bulletin at the next shop visit of the

engine/module.

NOTE: 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 fleet.

D. Concurrent Requirements

None.

September 22, 2015 CF6-80E1 S/B 72-0525

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GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - Accessory Drive Module (72-00-05) - Rework of Accessory Shield Assembly for

TBC Protection Improvement

E. Reason

(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 fire

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 field 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. 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 accessory shield assembly, you will need approximately

5 man-hours to do the rework portion of this Service Bulletin.

H. Weight and Balance

The complete compliance with this Service Bulletin increases weight by 5.2 lb

(2.4 kg).

September 22, 2015 CF6-80E1 S/B 72-0525

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GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - Accessory Drive Module (72-00-05) - Rework of Accessory Shield Assembly for

TBC Protection Improvement

I. References (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

NOTE 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

NOTE 2: The reference documents listed below are for the engine manufacturer's

internal use only:

CID: 569425, 569461

BPP: 12-72-00-07

J. Publications Affected

GEK 99376, CF6-80E1 Engine Manual (EM)

GEK 99378, CF6-80E1 Illustrated Parts Catalog (IPC)

K. Interchangeability

The old and new accessory shield assembly configurations are physically

interchangeable. However, functional interchangeability is impacted due to the

additional sump fire protection of the new TBC plates and attaching hardware

(bolts, self-locking nuts) required.

NOTE: The reworked accessory shield assembly is reidentified per RD 032-562

instructions into the new part number.

L. Software Accomplishment Summary

Not applicable.

September 22, 2015 CF6-80E1 S/B 72-0525

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GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - Accessory Drive Module (72-00-05) - Rework of Accessory Shield Assembly for

TBC Protection Improvement

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

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

NOTE: Prices are provided for planning purposes and are subject to change.

(2) Other Spare Parts:

Part Number

Qty/

Eng Part Name

Unit ($)

Price

Pkg

Qty

Lead

Time

Days

1825M61G04 (1) Shield Assembly,

Accessory

Quote (1) Quote

1802M22G04 (1) Shield, Heat

Accessory

Quote (1) Quote

NOTE: 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

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GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - Accessory Drive Module (72-00-05) - Rework of Accessory Shield Assembly for

TBC Protection Improvement

B. Industry Support Information

Contact your Customer Support Manager (CSM).

C. Configuration Chart

New

Part Number

Qty/

Eng Part Name

Old Part Number/

IPC Location

Qty/

Eng

Op

Code

Chg/

Sprt

Code

(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

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GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE - Accessory Drive Module (72-00-05) - Rework of Accessory Shield Assembly for

TBC Protection Improvement

New

Part Number

Qty/

Eng Part Name

Old Part Number/

IPC Location

Qty/

Eng

Op

Code

Chg/

Sprt

Code

..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

Operation Codes

AD = Add

DE = Delete

QTC = Quantity Change

RI = Reidentify

RM = Remains

RW = Rework

Change Codes

5 = Qualified interchangeability. Refer to paragraph 1.K., Interchangeability.

Support Codes

A = Old parts will no longer be supplied.

E = Old parts will be supplied, and can be used at other engine locations.

D. Parts Disposition

Rework the old accessory shield assembly. Refer to RD 032-562.

Discard the old rivets, self-locking nuts, and bolts.

E. Tooling - Price and Availability

Refer to RD 032-562.

3. ACCOMPLISHMENT INSTRUCTIONS

A. General

(1) Remove and disassemble the accessory shield assemblies (Figure 1) listed

in paragraph 1.A., Effectivity, 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

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GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first 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

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GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first 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

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GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.