Is AD 2011-15-06 a recurring Airworthiness Directive?

Yes — AD 2011-15-06 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2011-15-06 apply to?

AD 2011-15-06 applies to General Electric Company — models GE90-76B, GE90-77B, GE90-85B, GE90-90B, GE90-94B, GE90. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2011-15-06

recurring

Official AD 2011-15-06 · FR doc 2011-17621 · 2011-07-14 · turbine engine

Airworthiness Directives; General Electric Company GE90-76B; GE90-77B; GE90-85B; GE90-90B; and GE90-94B Turbofan Engines

What this AD requires

We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires initial and repetitive fluorescent penetrant inspections (FPIs) and eddy current inspections (ECIs) of the high-pressure compressor rotor (HPCR) 8-10 stage spool, part numbers (P/Ns) 1844M90G01 and 1844M90G02, for cracks between the 9-10 stages at each piece-part exposure. This AD was prompted by cracks discovered on one HPCR 8-10 spool between the 9-10 stages in the weld joint. We are issuing this AD to prevent failure of the HPCR 8-10 stage spool, uncontained engine failure, and damage to the airplane.

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 2011-15-06 applies to

MakesGeneral Electric Company

ModelsGE90-76B, GE90-77B, GE90-85B, GE90-90B, GE90-94B, GE90

Part-conditional — 1844M90G01, 1844M90G02.

Applies only to engines with a high-pressure compressor rotor (HPCR) 8-10 stage spool having one of the listed part numbers installed.

Whether AD 2011-15-06 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 2011-15-06 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.