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85-15-51: Fuel Manifold Supply Tube

FAA order 85-15-51 is an airworthiness directive in force since December 23, 1985. The FAA's subject line: Fuel Manifold Supply Tube. It names the General Electric CF6-80A, General Electric CF6-80A2 engines: about 14 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: engine.

What it applies to as the FAA lists it

Kind of product
Engine
Makes
General Electric Company
Models
CF6-80A, CF6-80A2
Engine series
General Electric CF6-80A 9 aircraft
General Electric CF6-80A2 5 aircraft

Dates and paperwork

In force since
December 23, 1985
Docket
Unknown
Status
Current
The FAA's document
Read the order on the FAA's site

The order itself the regulatory text, as published

Show the full text (1,728 characters)
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.

Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/85-15-51.json · aircraft systems.