Is AD 2002-01-27 a recurring Airworthiness Directive?

Yes — AD 2002-01-27 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2002-01-27 apply to?

AD 2002-01-27 applies to General Electric — models GE90-76B, GE90-77B, GE90-85B, GE90-90B, GE90. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2002-01-27

recurring

Official AD 2002-01-27 · FR doc 02-1984 · 2002-01-30 · turbine engine

Airworthiness Directives; General Electric Company GE90 Series Turbofan Engines

What this AD requires

This amendment supersedes an existing airworthiness directive (AD), that is applicable to General Electric Company (GE) GE90-76B, - 77B, -85B, -90B, and -92B model turbofan engines. That AD currently requires initial and repetitive eddy current inspections (ECI) for cracks in the high pressure compressor (HPC) stage 2-6 spool, and, if necessary, replacement with serviceable parts. That amendment was prompted by reports of cracks in the stage 3-4 and stage 4-5 interstage seal teeth and spacer arms. This amendment deletes reference to the GE90-92B engine model, deletes reference to HPC spool part number (P/N) 350-005-769-0 and directs the removal from service of affected part number spools by either engine cycles or calendar date, whichever occurs first. This amendment is prompted by the introduction of a new design HPC stage 2-6 spool and four additional HPC stage 2-6 spool P/N's that are terminating action for the repetitive inspection requirements for certain P/N spools. The actions specified by this AD are intended to prevent failure of the HPC stage 2-6 spool due to cracks, which could result in an 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 2002-01-27 applies to

MakesGeneral Electric

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

Serial-conditional — narrows to serials LAO37677–LAO37677.

Part-conditional — 350-005-761-0, 350-005-765-0, 350-005-770-0.

Applies to GE90-76B/-77B/-85B/-90B engines with HPC stage 2-6 spool P/N 350-005-761-0, 350-005-765-0, or 350-005-770-0 (the latter only for S/N LAO37677) installed; requires initial/repetitive eddy-current inspections of the spacer arm and interstage seal teeth per GE ASB GE90 72-A0357 Rev.4 / GE SB GE90 S/B 72-0352 Rev.4, and removal of affected spools before 4,800 CSN (-76B/-77B) or 4,600 CSN (-85B/-90B), or by June 30, 2005, whichever occurs first.

Whether AD 2002-01-27 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 2002-01-27 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.