e CF6-80C2 Al<rt S'"'" Boll<li" No 73- A0224 ROJ 

Revised: 08/0 I /200 I Issued: 05/2411995 

SB 73-A0224 R03 ENGINE FUEL AND CONTROL- Flowmeter to IDG Cooler Fuel Tube e CF6-80C2 ALERT SERVICE BULLETIN - 73- A0224 ROJ 

SB 73-A0224 R03 ENGINE FUEL AND C NTROLFLOWMETER TO IDG COOLER FUEL TUBE 

GE PROPRJET ARY INFORMATION 

Revised: 

08/01 /2001 

Issued: 

05/24/ 1995 

The information contained in this publication is GE proprietary information and is disclosed in 

confidence. It is the property ofGE 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 this media shall appear in any such reproduction in whole or in part. This 

technical data is considered !TAR and/or EAR controlled pursuant to 22 CFR Part 120-1 30 and 

15 CFR Parts 730-774 respectively. Transfer of this data by any means to a Non-U.S. Person, 

whether in the United States or abroad, without the proper U.S. Government authorization (e.g., 

License, exemption, NLR, etc.), is strictly prohibited. 

All technical documentation and information contained herein, with respect to assembly and 

disassembly, cleaning, inspection methods and limits, repair methods and limits, operational 

limits, life limits and the like, have been developed and approved for use with engines and parts 

that have been manufactured and/or approved by GE and that have been maintained in 

accordance with GE technical documentation and recommendations. GE has no contractual or 

legal obligation for, nor knowledge of, non-GE-approved parts and repairs. Accordingly, this 

documentation is not intended to apply to non-GE-approved parts and repairs. 

Copyright (200 I) General Electric Company, U.S.A. 

TRANSMITI AL INFORMATION 

CF6-80C2 Service Bulletin 73-A0224 Revision 3 
This section transmits Revision 3 to CF6-80C2 S/B 73-/\0224, dated May 24, 1995. 

Revision I was dated March 26, 1996. All pages were not supplied. 

Revision 2 was dated July 9, 1997. All pages were supplied. 

This revision is issued to add a CAUTION to avoid potential high pressure fuel leaks when 

installing or replacing fuel flowmeter tubes. 

Engines that have previously complied with this Service Bulletin are not affected. 

Technical content of this Service Bulletin is FAA approved. 

This entire Service Bulletin has been reformatted. The revision bars in the left margin identify 

changes. The revision bars are not used to identify format or style changes. 

This service bulletin is reissued in its entirety. 

GEAE Distribution Code: 853 

l. PLANNING INFORMATION 

A. Effectivity 

* * * CF6-80C2A I/A2/A3JA5/A8/A5F/B 1/B2/B4/B6/B I F/B2F/B4F/B6F/B7F/D IF 

(I) The flowmeter to lOG cooler fuel tube 1321 M42GO I installed in CF6-80C2 

engines or stocked as spares is affected. ~ ::y 0~ 

(2) The flowmeter to lOG cooler fuel tube 1321 M42G04 will be introduced in 

production on the engines listed below: ~ rJt.v.l . 

690-370 and higher and 695-663 and higher. 

703-191 and higher, 704-250 and higher, and 705-227 and higher. 

(3) These serial numbers are the best available data. 

B. Concurrent Requirements 

Do this Alert Service Bulletin when you do SIB 72-0625. 

C. Description 

A new flowmeter to lOG cooler fuel tube with improved four-bolt swivel retaining 

tube flanges is identified. 

D. Compliance 
Category 3 

Do at next shop visit or when the flowmeter to lOG cooler fuel tube is disconnected 

for on-wing maintenance. 

This Program is part of the GEAE Reliability Protection Program and, as such, 

requires tracking of the number of engines affected by, as well as the number of 

engines in compliance with, this Service Bulletin at your operation. 

NOTE: This Service Bulletin is offered to improve the reliability or performance of your GE 

product, or to prevent the occurrence of the event or condition described in the 

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. 

NOTE: This Service Bulletin can be done on-wing or in-shop. 

E. Reason 

(I) Objective: 

Make the flowmeter to lOG cooler fuel tube more reliable. This change is part of 

the GEAE Reliability Protection Program, the purpose of which is to reduce or 

eliminate significant engine-related events. 

(2) Condition: 

During maintenance, a flange on flowmeter to lOG cooler fuel tube 1321 M42GO I 

hung up on the tube ferrule so that it did not seat properly. Inspection and a leak 

test did not detect a leak but a leak and fire occurred during the first takeoff and 

climb. 

(3) Cause: 

The old flange can hang up on the ferrule. 

(4) Improvement: 

The new flange is chamfered and self-centering to avoid interference that can 

cause the flange to hang up on the ferrule. 

(5) Substantiation: 

A graphical computer model and calculations verify that the interference is 

eliminated. 

A similar flange has been used on similar applications. 
F. Approval 

Paragraph 3., Accomplishment Instructions, of this Alert Service Bulletin is approved 

by the Manager of the Engine Certification Office, ANE- 140, by letter dated July 3 1, 

200 I, as an alternate method of compliance to paragraph (a) (I) of Airworthiness 

Directive 2000-04-14. 

G. Manpower 

After you get access to the flowmeter to JOG cooler fuel tube, you will need 

approximately 0.5 man-hours for each engine. 

H. Weight and Balance 

Weight and balance are not changed. 

I. References 

CF6-80C2 Engine Manual, GEK 9245 1 

CF6-80C2A (PMC) Series Illustrated Parts Catalog (!PC), GEK 92452- 1 

CF6-80C2A (F ADEC) Series Illustrated Parts Catalog (I PC), GEK 92452-5 

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

CF6-80C20 (FA DEC) Illustrated Parts Catalog (I PC), GEK 92452-3 

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

CF6-80C2 S/B 72-0625, ENGINE - Accessory Gearbox Assembly- New Carbon Seal 

and Ri ng Assembly 

NOTE: The reference document listed below is for the engine manufacturer's internal use 

only: 

GEAE internal use only: CID: 34672 1 

J. Publications Affec ted 

CF6-80C2A (PM C) Series Illustrated Parts Catalog (I PC), GEK 92452-1 , 73-00-00 

CF6-80C2A (FADEC) Series Ill ustrated Parts Catalog (IPC), GEK 92452-5, 73-00-00 

CF6-80C2B (PMC) Series Illustrated Parts Catalog (I PC), GEK 92452-2, 73-00-00 

CF6-80C2D (FA DEC) Illustrated Parts Catalog (I PC), GEK 92452-3, 73-00-00 

CF6-80C2B (FADEC) Series Illustrated Parts Catalog (I PC), GEK 92452-4, 73-00-00 

K. Interchangeability 

The old and new tubes are interchangeable. However, to reduce the possibility of fue l 

leaks, replace the old tubes with the new tubes. 

2. MATERIAL INFORMATION 

A. Material- Price and Availability 
(I) Parts necessary to do this Service Bulletin: 

Parts Necessary 

Qty/ 

Part Number Eng Part Name 

.1221 P2 17 (I) Packing - Preformed 

J2 19P05 (I) Gasket- Seal 

1321 M42Ci04 (I) Tube, Fuel- Flowmeter to JOG Cooler 

OTE: Prices can change. 

(2) Future spare parts: 

None. 

(3) Consumables: 

Description 

Lead 

Pkg Time 

Unit Price($) Qty Days 

2.05 (25) 30 

19.00(10) 30 

531.00(1) 30 

I Code Number 

C02-019 Oil, Engine Lubricating (GE Spec. DSOTF I) 

B. Industry Support Information 

GE Aircraft Engines is offering a 50 percent up front discount for purchase orders 

submitted before December 31 , 1997. Refer to paragraph 2.A., Material- Price and 

Availability, for details. 

To get material allowances, follow this recommended compliance and applicable 

instructions. 

GE Aircraft Engines will supply the parts. Refer to paragraph 2.A., Material- Price 

and Availability. Send a charge purchase order (The Purchase Order must include the 

list of parts and the number of this Alert Service Bulletin) to: 

A ITN: Manager, Customer Account Support, 

Room 115 

GE Aircraft Engines 

Commercial Product Support Department 

I II Merchant Street 

Cincinnati, OH 45246 USA 

C. Configuration Chart 

Configuration Chart 

Qty/ 

New Part Number Eng Part Name 

Old 

Part Number/ 

IPC Location 

Chg/ 

Qty/ Op Sprt 

Eng Code Code 
Old Chg/ 

Qty/ Part Number/ Qty/ Op Sprt 

New Part Number E ng Part Name IPC Location Eng Code Code 

(PRODUCTION 

OR FIELD) 

9255M28GO I/G02/ (X) Accessory Drive 925 5 M 28GO I /G02/ (X) RM -IG03/G04/G05/G06/ Assy G03/G04/G05/G06/ 

G07 /G08/G09 CF6-80C2A I I A21 G07 /G08/G09 

A3/ AS/ A8/8 I /82/ 

84/86 

9255M79GO I/G02 (X) Accessory Drive 9255M79GO I/G02 (X) RM -1-

/G03 Assy /G03 

CF6-

80C28 I F /82F I 

84F/86F/87F/ 

DIF/A5F 

132 1 M42G04 (I) Tube, Fuel - 132 1M42GOI ( I) RE 5/A 

Flowmeter to IDG 73-00-00-05-

Cooler 080 (PMC)73-00-00-

07-035 (FADEC) 

Change Codes 

5 =Qualified interchangeability- Refer to paragraph I.K., Interchangeability. 

Spare Parts Support Code 

A = Old parts will no longer be supplied. 

Operation Codes 

RM =Remains 

RE =Replace 

D. Parts Disposition 

Discard old parts. 

E. Tooling- Price and Availability 

None. 

3. ACCOMPLISHMENT INSTRUCTIONS 

A. Genera l 

WARNING: DO NOT USE AVIATION TURBINE FUEL (JET FUEL) NEAR FLAMES OR 

HEAT, BECAUSE THIS FUEL IS VERY FLAMMABLE. DO NOT LET THE 

FUEL STAY ON YOUR BODY OR CLOTHES. THIS FUEL IS DANGEROUS 

TO YOUR SKIN AND EYES. DO NOT 8REA THE THE FUMES RELEASED 
FROM THIS FUEL. MAKE SURE YOU HAVE A GOOD FLOW OF AIR. 

TH ESE FUMES ARE DANGEROUS TO YOUR LUNGS, CAN GIVE YOU A 

HEADACHE, AND CAN MAKE YOU SICK. 

CAUTION: WHEN INSTALLING OR REPLACING THE FUEL FLOWMETER TUBES OR 

REPLACING THE SEAL GASKET (J219P05) THE FOLLOWING 

PRECAUTIONS MUST BE TAKEN TO PREVENT POTENTIAL HIGH 

PRESSURE FUEL LEAKS: 

(I) Use a suitable container to catch fuel. 

(2) Remove the flowmeter to lOG cooler fuel tube 1321 M42GO I. 

(3) Clean flanges to make sure no debris is present. 

( 4) Inspect seal gasket before installation to make sure no nicks or tears are on the 0-

ring seal. 

(5) Lightly lubricate seals with engine oil C02-0 19 . 

(6) Replace with new preformed packing .1221 P217 and new seal gasket J219P05, and 

install the new tube 132 1 M42G04. 

(7) Install all fasteners to a finger tight condition. 

(8) Center four bolt swivel flange around tube end ferrule. 

(9) Torque the flange bolts to 55-70 lb in. (6.2-7.9 N.m) in a diagonal pattern to ensure 

proper seating of the gasket. 

(I 0) Do an idle leak check. Refer to the Aircraft Maintenance Manual, Chapter 71-00-

00. 
0 

FORWARD 

FUEL 

FLOWt.iETER 

\ ------

Flowmeter to I DG Cooler Fuel Tube 

Figure I 

FLOWMEiER TO lOG 

COOLER FUEL TUBE 

OLD: 1321M42G01 

NEW: 1321M42G04 

1120770o00 

GE PROPRIETARY INFORMATION- Subject to the restrictions on the media. 
Date Printed: 

{cd} 

GE PROPRIETARY IN FORMATION· Not to be used. disclosed to others or 

reproduced without the express written consent ofGE. Technical data is considered 

IT AR and/or EAR controlled; transfer of this data to a Non-US Person, without USG 

authorization. is strictly prohibited. 

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