ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

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.

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 1 of 17
ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

TRANSMITTAL INFORMATION

REVISION 1 TO SERVICE BULLETIN 73-0414

Revision 1 is issued to update the Service Bulletin title, paragraphs 1., PLANNING INFORMATION,

and 3., ACCOMPLISHMENT INSTRUCTIONS.

The original was issued July 02, 2013. Revision bars in the left margin identify changes.

1. PLANNING INFORMATION

A. Effectivity

CF6-80C2A1/A2/A3/A5/A8/B1/B2/B4/B6

CF6-80C2A5F/B1F/B2F/B4F/B5F/B6F/B6FA/B7F/B8F/D1F/L1F/K1F

This Service Bulletin is applicable to all CF6-80C2 engines.

The left and right side fuel manifolds (fuel manifolds) pre-CF6-80C2 S/B 73-0371

configurations are affected by this Service Bulletin.

B. Description

This Service Bulletin provides a repetitive inspection procedure for epoxy wear

sleeve (epoxy sleeve) and/or repaired fuel manifolds with PTFE coated para-aramid

tape and tube clamp (block clamp) P/N 1153M26G15 and replacement of any

affected fuel manifolds configurations. The inspection is necessary to detect

damage of the epoxy sleeve or repaired fuel manifolds with PTFE coated

para-aramid tape in the fuel manifolds, which can result from relative motion

between the block clamp and the fuel manifold.

C. Compliance

Category 2

GE recommends that you do this Service Bulletin as soon as possible without effect

on revenue service but before reaching the threshold inspection intervals for each

fuel manifold as follows:

Do an initial inspection within the first six months after the original issue date of this

Service Bulletin and do the repetitive inspection at the same interval (every 7,500

flight hours) as the fuel manifold cushion clamps inspection. Refer to CF6-80C2

S/B 73-0326.

NOTE 1: For non-installed engines, accomplish the initial inspection prior to installation

on wing, thereafter perform the repetitive inspection as instructed in this

Service Bulletin.

NOTE 2: This Service Bulletin can be accomplished on wing or in shop.

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 2

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

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.

E. Reason

(1) Objective:

To improve reliability and reduce significant events.

(2) Condition:

Tube wall thinning on the fuel manifolds, if undetected, can result in a fuel

leak. This fuel manifold system is common to the CF6-80C2 and CF6-80E1

engine programs.

(3) Cause:

Looseness of the clamp due to a poor fit between the clamp and the epoxy

wear sleeve or repaired fuel manifolds with PTFE coated para-aramid tape

at the extremes of dimensional variation from manufacturing. Time exposure

of the block clamp with the epoxy sleeve is also a contributor to cause wear

of the epoxy sleeve with wear/damage affecting the fuel manifold (thins the

tube wall beyond serviceable limits).

(4) Configuration Description:

The accomplishment of this Service Bulletin will result in the replacement of

the worn epoxy wear sleeve or existing worn PTFE coated para-aramid tape

with a new PTFE coated para-aramid tape

(5) Inspection:

This inspection will allow detection of worn fuel manifolds on the epoxy sleeve

area. The block clamps are replaced with serviceable block clamps to ensure

that damaged block clamps are not installed on the engine.

(6) Substantiation:

Substantiation is based upon design analysis and field inspection data

analysis.

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 3

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

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 fuel manifolds and block clamps, you will need

approximately 1.0 man-hour to inspect the fuel manifolds and replace the block

clamps if damaged, for each engine. If removal and installation of the fuel manifolds

are necessary, you will need approximately 10 man-hours.

H. Weight and Balance

Weight and balance are not changed.

I. References (Use the latest version of these documents)

CF6-80C2 Airbus A300-600 Aircraft Maintenance Manual (AMM) (June 01, 2013 or

later approved revision)

CF6-80C2 Airbus A310-300 Aircraft Maintenance Manual (AMM) (June 01, 2013 or

later approved revision)

CF6-80C2 Boeing 747-300/400 Aircraft Maintenance Manual (AMM) D633U101-GH

(November 15, 2013 or later approved revision)

CF6-80C2 Boeing 767-300/400 Aircraft Maintenance Manual (AMM) D633T196

(April 22, 2014 or later approved revision)

CF6-80C2 C5-RERP CF6-80C2L1F/C-5M USAF Technical Orders (TO)

1C-5M-6WC-7 (May 28, 2013 or later approved revision) and 1C-5M-6WC-8 (May

12, 2012 or later approved revision)

Deleted

CF6-80C2 McDonnell Douglas MD-11 Aircraft Maintenance Manual (AMM)

TR-11MM-UPS (March 01, 2014 or later approved revision)

CF6-80C2 S/B 73-0326, ENGINE - Fuel and Control (72-00-02) - Fuel Manifold

Inspection and Clamp Replacement

CF6-80C2 S/B 73-0365, FUEL AND CONTROL - Core Engine Module (72-00-02) -

Fuel Manifold PTFE Tape Installation

CF6-80C2 S/B 73-0371, ENGINE FUEL AND CONTROL - Fuel System (73-00-00)

- Introduction of New Fuel Manifold System

GEK 9250, Commercial Engine Standard Practices Manual (SPM)

GEK 92452-1, CF6-80C2A (PMC) Illustrated Parts Catalog (IPC)

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 4

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

GEK 92452-2, CF6-80C2B (PMC) Illustrated Parts Catalog (IPC)

GEK 92452-3, CF6-80C2D (FADEC) Illustrated Parts Catalog (IPC)

GEK 92452-4, CF6-80C2B (FADEC) Illustrated Parts Catalog (IPC)

GEK 92452-5, CF6-80C2A (FADEC) Illustrated Parts Catalog (IPC)

GEK 112657, CF6-80C2L1F Illustrated Parts Catalog (IPC)

GEK 112722, CF6-80C2K1F Illustrated Parts Catalog (IPC)

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

internal use only:

BPP: 13-72-00-02

J. Publications Affected

None.

K. Interchangeability

Not applicable.

L. Software Accomplishment Summary

Not applicable.

2. MATERIAL INFORMATION

A. Material - Price and Availability

(1) Parts necessary to do this Service Bulletin:

None.

(2) Other Spare Parts:

Part Number

Qty/

Eng Part Name

Unit ($)

Price

Pkg

Qty

Lead

Time

Days

1153M26G15* (4) Clamp, Tube 154.00 (1) 5

1303M31G12** (1) Manifold, Fuel

Left Side

- (-) -

1303M32G12** (1) Manifold, Fuel

Right Side

- (-) -

2420M70G01 (1) Manifold, Fuel

Left Side

14,780.00 (1) 5

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 5

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

Part Number

Qty/

Eng Part Name

Unit ($)

Price

Pkg

Qty

Lead

Time

Days

2420M71G01 (1) Manifold, Fuel

Right Side

12,570.00 (1) 5

*Quantity required per engine if all the block clamps are found

unserviceable after inspection.

**Refer to the applicable CF6-80C2 IPC for latest configurations.

GE recommends that fuel manifolds P/N 1303M31G12 and P/N

1303M32G12 are reworked per CF6-80C2 S/B 73-0365 to add PTFE

tape prior to use.

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

(3) Consumables:

Code Number Description

C04-001 Solvent, General [methyl ethyl ketone (MEK)]

C04-002 Solvent, General (solvent)

C04-014 Solvent, General (denatured alcohol)

C04-113 Abrasive, Grit, Aluminum Oxide, 220 Mesh (aluminun

oxide)

C10-225 Tape, Silicone, Para-Aramid Fiber Cloth, PTFE Coated

(PTFE coated para-aramid tape)

C10-182 Cloth, Cleaning for Aircraft Structural (cloth)

B. Industry Support Information

None.

C. Configuration Chart

None.

D. Parts Disposition

If fuel manifolds are found unserviceable after the inspection, they can be replaced

or sent for repair to a certified repair station.

E. Tooling - Price and Availability

None.

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 6

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

3. ACCOMPLISHMENT INSTRUCTIONS

A. General

(1) Get access to affected fuel manifolds and inspect the epoxy wear sleeve

or PTFE coated para-aramid tape. Refer to Boeing 747-400 AMM, Task

73-11-10-200-801-J00, or Boeing 767 AMM, Task 73-11-10-206-108-H00, or

Boeing MD11 AMM, Task 73-11-03-200-801, or Airbus A300-600 AMM, Task

73-13-03, or Airbus A310-300 AMM, Task 73-13-03, or C5 RERP TO, Task

1C-5M-2-4JG-1-1.

(2) Remove the four block clamps (3, Figure 1) from the fuel manifolds (1 and

2) as follows:

(a) Remove nuts (4), bolts (5), washers (6), and link brackets (7 and 8)

from the block clamps (3).

(b) Remove the block clamps (3) from the epoxy wear sleeve or PTFE

coated para-aramid tape. The epoxy wear sleeve or PTFE coated

para-aramid tape location is between the block clamps (3) and fuel

manifolds (1 and 2).

(3) Do an inspection for serviceability of the block clamps (3). Refer to Table 1

and Figure 2 for block clamp wear examples.

NOTE: If chafing is found during the fuel manifold inspection, complete

inspection report. Refer to paragraph 3.B., Fuel Manifold Chafing

Inspection Report.

Table 1 - Block Clamp Inspection Criteria and Action

Condition Maximum Serviceable

Limit

Corrective Action

Cracks or pieces missing Not serviceable Replace the block clamp

Nicks or gouges 0.010 inch (0.25 mm) in

depth if not on clamping

surface. Not permitted on

clamping surface.

Replace the block clamp

Scratches 0.005 inch (0.13 mm)

in depth if not on the

clamping surface. Not

permitted on clamping

surface.

Replace the block clamp

Loose or loss of clamping

ability

Not serviceable Replace the block clamp

Loose or missing rivet Not serviceable Replace the block clamp

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 7

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

(4) If the fuel manifolds (1 and 2, Figure 1) have not been previously repaired with

PTFE coated para-aramid tape (C10-225) at the block clamp (3) locations, do

an inspection of the epoxy sleeve area. Refer to Table 2.

Table 2 - Epoxy Sleeve Inspection Criteria and Action

Condition Maximum Serviceable

Limit

Corrective Action

(a) Visual evidence of

unbonded areas

between the epoxy

wear sleeve and

the fuel manifold is

not permitted.

(b) Epoxy wear that is

more than 0.005

inch (0.13 mm) in

depth and more

than 30 percent of

the surface area is

not permitted.

Epoxy sleeve has

no visual evidence

of damage and it is

within serviceable

limits. Refer to

Boeing 747-400

AMM, Task 73-11-

10-200-801-J00, or

Boeing 767 AMM,

Task 73-11-10-206-

108-H00, or Boeing

MD11 AMM, Task

73-11-03-200-801,

or Airbus A300-600

AMM, Task 73-13-03,

or Airbus A310-300

AMM, Task 73-13-03,

or C5 RERP TO, Task

1C-5M-2-4JG-1-1.

(epoxy wear-sleeve

inspection criteria).

(c) Epoxy chipped

areas more than

20 percent of the

sleeve area is not

permitted.

No corrective action.

Continue with the installation of serviceable block

clamps (3, Figure 1). Proceed to paragraph 3.A.(7).

(a) Visual evidence of

unbonded areas

between the epoxy

wear sleeve and

the fuel manifold is

not permitted.

Repair the epoxy sleeve. Proceed to paragraph

3.A.(5) or 3.A.(6) for the CF6-80C2L1F/K1F only.

(b) Epoxy wear that is

more than 0.005

inch (0.13 mm) in

depth and more

than 30 percent of

the surface area is

not permitted.

Epoxy sleeve has

visual evidence of

damage and it is

out of serviceable

limits. Refer to

Boeing 747-400

AMM, Task 73-11-

10-200-801-J00, or

Boeing 767 AMM,

Task 73-11-10-206-

108-H00, or Boeing

MD11 AMM, Task

73-11-03-200-801,

or Airbus A300-600

AMM, Task 73-13-03,

or Airbus A310-300

AMM, Task 73-13-03,

or C5 RERP TO, Task

1C-5M-2-4JG-1-1.

(epoxy wear-sleeve

inspection criteria).

(c) Epoxy chipped

areas more than

20 percent of the

sleeve area is not

permitted.

NOTE: After fuel manifold repair

using para-aramid tape per

Boeing 747-400 AMM, Task

73-11-10-200-801-J00, or

Boeing 767 AMM, Task

73-11-10-206-108-H00, or

Boeing MD11 AMM, Task

73-11-03-200-801, or Airbus

A300-600 AMM, Task 73-13-03,

or Airbus A310-300 AMM, Task

73-13-03, or C5 RERP TO, Task

1C-5M-2-4JG-1-1, repaired fuel

manifold can continue in service

up to 7,500 flight hours.

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 8

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

Condition Maximum Serviceable

Limit

Corrective Action

Remove the epoxy sleeve and inspect the fuel

manifolds:

Epoxy sleeve wear

through to parent

metal of the fuel

manifolds.

See paragraph

(4.1).(f).3.

(4.1) Do a general inspection to the parent metal of

the fuel manifolds (1 and 2, Figure 1) as follows:

WARNING: REFER TO THE PRODUCT

LABEL AND THE MANUFACTURER’S (MATERIAL) SAFETY

DATA SHEET FOR INSTRUCTIONS ON THE HAZARDS,

STORAGE, SAFE HANDLING

AND PROPER USE OF THIS

PRODUCT.

(a) Clean the outer surface of the epoxy sleeve

with MEK (C04-001) or solvent (C04-002).

(b) Let the cleaned surfaces air dry.

(c) Lightly sand the surface to remove the glossy

surface of the existing composite or resin

surface with aluminum oxide (C04-113) or its

equivalent.

(d) Remove the remaining dust with a cloth

(C10-182).

(e) Clean the surface with a clean cloth made of

moist with denatured alcohol (C04-014) or

its equivalent, until the last clean cloth wipes

clean.

(f) Do a visual inspection of the fuel manifolds (1

and 2) with a bright light at all block clamps

(3) locations. If the fuel manifolds (1 and 2)

have any sign of wear, measure the tube as

follows or with an equivalent method that can

find decreased wall thickness:

1 Measure the outside diameter of

the tube adjacent to the worn area.

Record the indication.

2 Measure the outside diameter of the

tube in the worn area, find the smallest

diameter. Record the indication.

3 Subtract the worn area indication

recorded in step 3.A.(4.1)(f)2 from the

undamaged area indication recorded

in step 3.A.(4.1)(f)1 and do as follows:

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 9

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

Condition Maximum Serviceable

Limit

Corrective Action

a A fuel manifold with wear that

is less than or equal to 0.0035

inch (0.089 mm) can continue its

operation until the next inspection.

Proceed to paragraph 3.A.(5) or

3.A.(6) for the CF6-80C2L1F/K1F

only.

b A fuel manifold with wear that is

more than 0.0035 inch (0.089 mm)

but less than or equal to 0.010

inch (0.25 mm) can continue its

operation for another 50 cycles

before the fuel manifolds have

to be replaced. Proceed to

paragraph 3.A.(5) or 3.A.(6) for the

CF6-80C2L1F/K1F only.

For fuel manifold removal and

installation, refer to Boeing

747-400 AMM, Task 73-11-10,

or Boeing 767 AMM, Task

73-11-10, or Boeing MD11

AMM, Task 73-11-10, or Airbus

A300-600 AMM, Task 73-13-03,

or Airbus A310-300 AMM, Task

73-13-03, or C5 RERP TO, Task

1C-5M-2-4JG-1-1.

c A fuel manifold with wear that is

more than 0.010 inch (0.25 mm)

is unserviceable and must be

replaced immediately. For fuel

manifold removal and installation,

refer to Boeing 747-400 AMM, Task

73-11-10, or Boeing 767 AMM,

Task 73-11-10, or Boeing MD11

AMM, Task 73-11-10, or Airbus

A300-600 AMM, Task 73-13-03,

or Airbus A310-300 AMM, Task

73-13-03, or C5 RERP TO, Task

1C-5M-2-4JG-1-1.

(5) Remove the epoxy material from the fuel manifolds (refer to instructions of

Table 2, paragraph 4.1) and apply PTFE coated para-aramid tape (C10-225)

to the serviceable fuel manifolds (1 and 2, Figure 1). Refer to Boeing

747-400 AMM, Task 73-11-10-200-801-J00, or Boeing 767 AMM, Task

73-11-10-206-108-H00, or Boeing MD11 AMM, Task 73-11-03-200-801, or

Airbus A300-600 AMM, Task 73-13-03, or Airbus A310-300 AMM, Task

73-13-03, or C5 RERP TO, Task 1C-5M-2-4JG-1-1.

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 10

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

(6) (For CF6-80C2L1F and CF6-80C2K1F only). Remove the epoxy material

from the fuel manifolds (refer to instructions of Table 2, paragraph 4.1) and

apply PTFE coated para-aramid tape (C10-225) to the serviceable fuel

manifold (1 and 2, Figure 1) as follows:

(a) Apply PTFE coated para-aramid tape (C10-225) to a clean fuel manifold

(1 and 2) at each block clamp (3) location.

CAUTION: DO NOT APPLY MORE THAN FIVE WRAPS OF THE PTFE

COATED PARA-ARAMID TAPE (C10-225) AROUND THE FUEL

MANIFOLD (1 AND 2) TUBE. MORE THAN FIVE WRAPS WILL

MAKE THE BLOCK CLAMP (3) TOO TIGHT AND CAUSE

DAMAGE TO THE FUEL MANIFOLD (1 AND 2) AND AFFECT

THE ENGINE PERFORMANCE.

(b) Wrap one continuous piece of PTFE coated para-aramid tape (C10-225)

around the fuel manifold (1 and 2) five times. Refer to Figure 3 as

reference.

NOTE: Do not spiral wrap the PTFE coated para-aramid tape (C10-225).

(c) Push the PTFE coated para-aramid tape (C10-225) tightly to ensure full

contact around the complete diameter of the fuel manifold (1 and 2,

Figure 1) tube.

(d) Examine the PTFE coated para-aramid tape (C10-225) for correct

installation as follows:

1 Make sure that there are no unbonded areas between the PTFE

coated para-aramid tape (C10-225) and the fuel manifold (1 and 2).

2 Make sure that the wrapped PTFE coated para-aramid tape

(C10-225) outer diameter is in limits of 0.680-0.690 in (17.27-17.53

mm).

a If the diameter is out of limits, add or remove one layer of

PTFE coated para-aramid tape (C10-225) to get the necessary

diameter.

3 Install the block clamp (3) and do a shim inspection with a 0.0015

inch (0.038 mm) thick shim.

NOTE: No gap or looseness between the block clamp (3) and the

PTFE coated para-aramid tape (C10-225) is permitted.

a Make sure that the shim does not fit between the block clamp

(3) and the final diameter of the PTFE coated para-aramid tape

(C10-225).

(7) Install the four block clamps (3, Figure 1) on the fuel manifolds (1 and 2) with

the nuts (4), bolts (5), washers (6), and link brackets (7 and 8). Torque the

nuts (4) to 33-37 lb in. (3.7-4.2 N·m).

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 11

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

(8) Close access to affected fuel manifolds (1 and 2). Refer to Boeing

747-400 AMM, Task 73-11-10-404-036-J00, or Boeing 767 AMM, Task

73-11-10-416-107-H00, or Boeing MD11 AMM, Task 73-11-03-400-801, or

Airbus A300-600 AMM, Task 73-13-03, or Airbus A310-300 AMM, Task

73-13-03, or C5 RERP TO, Task 1C-5M-2-4JG-1-1.

B. Fuel Manifold Chafing Inspection Report

(1) If chafing is found during the fuel manifold inspection, please send the

following information to AOC at 513-552-3272 or email to geae.aoc@ge.com

to the attention of the hardware owner.

Fuel Manifold Part

Number

Fuel Manifold Part

Number

Engine Serial Number

Engine Time Since New

OR

Engine Time Since Last

Shop Visit

Engine Cycle Since New

OR

Engine Cycle Since Last

Shop Visit

Chafing location

Block clamp replaced

(unserviceable)

Yes No

Event Result

(Leak/Chafing - include

depth)

C. Inspection of the Fuel Manifolds that have PTFE Coated Para-Aramid Tape

(C10-225) at the Block Clamp Locations

(1) If the fuel manifolds (1 and 2, Figure 1) have been previously repaired with

PTFE coated para-aramid tape (C10-225) at the block clamp (3) locations,

inspect the fuel manifolds (1 and 2) and block clamps (3) as follows:

(a) Remove the four block clamps (3) from the fuel manifolds (1 and 2).

Refer to paragraph 3.A.(2).

(b) Do an inspection for serviceability of the block clamps (3). Refer to

paragraph 3.A.(3).

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 12

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

(2) Inspect the PTFE coated para-aramid tape (C10-225) at the fuel manifolds (1

and 2). Refer to Figure 3 and as follows:

(a) No chafing, scratches, nicks, or tears on the PTFE coated para-aramid

tape (C10-225) are permitted.

(b) No more than one depression because of block clamp (3, Figure 1)

force is permitted.

CAUTION: IF ANY DAMAGE IS FOUND ON THE PARENT METAL OF

THE FUEL MANIFOLDS (1 AND 2, FIGURE 1). FOLLOW THE

CRITERIA OF TABLE 2 PARAGRAPH 4.1.

(c) If you see the conditions described in paragraphs 3.C.(2)(a) and

3.C.(2)(b) in the PTFE coated para-aramid tape (C10-225), replace the

damaged PTFE coated para-aramid tape (C10-225) with new PTFE

coated para-aramid tape (C10-225) to serviceable fuel manifolds (1 and

2) as specified in Boeing 747-400 AMM, Task 73-11-10-200-801-J00, or

Boeing 767 AMM, Task 73-11-10-206-108-H00, or Boeing MD11 AMM,

Task 73-11-03-200-801, or Airbus A300-600 AMM, Task 73-13-03,

or Airbus A310-300 AMM, Task 73-13-03, or C5 RERP TO, Task

1C-5M-2-4JG-1-1.

NOTE: If the PTFE coated para-aramid tape (C10-225) did not need to

be replaced or if you add new PTFE coated para-aramid tape

(C10-225), the repaired fuel manifolds (1 and 2, Figure 1) can

continue in service for up to 7,500 flight hours before they need

to be reinspected.

(d) Install serviceable block clamps (3) on the fuel manifolds (1 and 2).

Refer to paragraph 3.A.(6).

(3) Close access to affected fuel manifolds (1 and 2). Refer to Boeing

747-400 AMM, Task 73-11-10-404-036-J00, or Boeing 767 AMM, Task

73-11-10-416-107-H00, or Boeing MD11 AMM, Task 73-11-03-400-801, or

Airbus A300-600 AMM, Task 73-13-03, or Airbus A310-300 AMM, Task

73-13-03, or C5 RERP TO, Task 1C-5M-2-4JG-1-1.

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 13

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

Block Clamp and Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Location

Figure 1, ( Sheet 1 of 2 )

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 14

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

Block Clamp and Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Location

Figure 1, ( Sheet 2 )

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 15

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

Block Clamp and Epoxy Sleeve Wear Examples (Not Serviceable Condition)

Figure 2

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 16

GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.
ENGINE FUEL AND CONTROL - Fuel System (73-00-00) - Inspection of the Block Clamps and

Epoxy Wear Sleeve/PTFE Coated Para-Aramid Tape Areas in the Fuel Manifolds

PTFE Coated Para-Aramid Tape Application

Figure 3

July 02, 2013 CF6-80C2 S/B 73-0414

Revision 01, May 29, 2014 PAGE 17

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