# AD 85-15-51: Fuel Manifold Supply Tube

- Type: Airworthiness directive
- Status: Current
- Products: General Electric CF6-80A and CF6-80A2
- Effective: December 23, 1985
- Superseded by: Nothing supersedes this AD
- Product type: Engine
- Amendment: 39-5180
- Registered aircraft: 251 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4FCECF80B574C8D78625685F006E5E52.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/85-15-51

## The airworthiness directive

85-15-51 GENERAL ELECTRIC COMPANY: Amendment 39-5180. Applies to General Electric CF6- 80A/A2 model turbofan engines.

Compliance is required as indicated unless already accomplished.

To prevent rupture of the fuel manifold supply tube which could lead to a rejected takeoff, accomplish the following:

  (a) Remove from service fuel manifold supply tube, GE P/N 9327M46G01 or G02, with 2,500 or more total cycles within the next 100 operating cycles.

  (b) Remove from service fuel manifold supply tube, GE P/N 9327M46G01 or G02, with less than 2,500 total cycles, prior to accumulating 2,500 total cycles, or within the next 100 operating cycles, whichever occurs later.

  (c) Replace fuel manifold supply tube, GE P/N 9327M46G01 or G02, removed in accordance with (a) or (b) above, with a serviceable part.

NOTE: This AD establishes a life limit of 2,500 cycles for fuel manifold supply tube, GE P/N 9327M46G01 or G02.

Aircraft may be ferried in accordance with the provisions of FAR 21.197 and 21.199 to a base where the AD can be accomplished.

Upon request, an equivalent means of compliance with the requirements of this AD may be approved by the Manager, Engine Certification Office, ANE-140, 12 New England Executive Park, Burlington, Massachusetts 01803, telephone (617) 273-7080.

Upon submission of substantiating data by an owner or operator through an FAA maintenance inspector, the Manager, Engine Certification Office, New England Region, may adjust the compliance time specified in this AD.

This amendment becomes effective December 23, 1985, to all persons except those persons to whom it was made immediately effective by T85-15-51 issued July 26, 1985, which contained this amendment.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS E13NE](https://openairdocs.org/tcds/E13NE): General Electric Company GE Aerospace; names 2 of 28 models: CF6-80A2, CF6-80A

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 251 (0 by airframe model, 251 by engine model)
- Makers: Boeing 171, Mcdonnell Douglas 45, Airbus Industrie 35

Models with the most aircraft:

- [GE CF6-80 series](https://openairdocs.org/engine/ge-cf6-80-series): 237 aircraft (engine model)
- [GE CF6-80A](https://openairdocs.org/engine/ge-cf6-80a): 9 aircraft (engine model)
- [GE CF6-80A2](https://openairdocs.org/engine/ge-cf6-80a2): 5 aircraft (engine model)

All 3 models: https://openairdocs.org/ad/85-15-51/models.md
Every aircraft: https://openairdocs.org/ad/85-15-51/aircraft.md

Its text cites no advisory circulars or STCs.

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