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Airworthiness Directive 98-15-17

recurring
Official AD 98-15-17 · FR doc 98-19485 · 1998-07-23 · turbine engine

Airworthiness Directives; General Electric Company CF6-80A3 Series Turbofan Engines

What this AD requires

This amendment adopts a new airworthiness directive (AD) that is applicable to General Electric Company CF6-80A3 series turbofan engines. This action requires initial and repetitive on-wing borescope inspections of the left hand aft mount link assembly for cracks, bearing migration, and bearing race rotation, and, if necessary, replacement with serviceable parts. This amendment is prompted by a report of a fractured left hand aft mount link discovered during a scheduled engine removal. The actions specified in this AD are intended to prevent left hand aft mount link failure, which can result in adverse redistribution of the aft mount loads and possible aft mount system failure.

Repetitive inspection. Re-inspect. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 98-15-17 applies to

MakesGeneral Electric
ModelsCF6-80A3, CF6

Installed on but not limited to Airbus A310 series aircraft; applies to each identified engine regardless of modification, alteration, or repair status.

Whether AD 98-15-17 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

How AD compliance is recorded

A valid compliance record (14 CFR 43.9) states:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.
Date — When the work was done.
Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.
Signature & certificate — The A&P/IA who returned it to service, with certificate number.
Is AD 98-15-17 complied with on your aircraft?

Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.

Look up a tail number →Read the full directive (Federal Register)

Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.