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Airworthiness Directive 2017-08-06

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Official AD 2017-08-06 · FR doc 2017-07677 · 2017-04-17 · turbine engine

Airworthiness Directives; General Electric Company Turbofan Engines

What this AD requires

We are adopting a new airworthiness directive (AD) for certain General Electric Company (GE) GE90 turbofan engines. This AD was prompted by a report of an engine and airplane fire. This AD requires replacing affected fuel/oil lube/servo coolers ("main fuel oil heat exchangers") with a part eligible for installation. We are issuing this AD to correct the unsafe condition on these products.

Which aircraft AD 2017-08-06 applies to

MakesGeneral Electric Company
ModelsGE90-76B, GE90-85B, GE90-90B, GE90-94B, GE90-110B1, GE90-115B, GE90
Part-conditional — 1838M88P11, 1838M88P13.

Applies to engines with a fuel/oil lube/servo cooler (main fuel oil heat exchanger), P/N 1838M88P11 (VIN UA541461-12) or P/N 1838M88P13 (VIN UA541461-14), with an S/N listed in paragraph 1.A of GE Service Bulletin (SB) GE90-100 S/B 79-0034, Revision 03, dated August 5, 2016, or GE SB GE90 S/B 79-0058, Revision 02, dated August 5, 2016, installed.

Whether AD 2017-08-06 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 2017-08-06 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.