Is AD 2002-09-09 a recurring Airworthiness Directive?

Yes — AD 2002-09-09 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2002-09-09 apply to?

AD 2002-09-09 applies to Lycoming — models T53-L-13B, T53-L-13B/D, T53-L-703, T53. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2002-09-09

recurring

Official AD 2002-09-09 · FR doc 02-11216 · 2002-05-09 · turboshaft engine

Airworthiness Directives; Honeywell International, Inc., (Formerly AlliedSignal, Inc., Textron Lycoming, Avco Lycoming, and Lycoming) Former Military T53 Series Turboshaft Engines

What this AD requires

This amendment adopts a new airworthiness directive (AD), that is applicable to Honeywell International, Inc., (formerly AlliedSignal, Inc., Textron Lycoming, Avco Lycoming, and Lycoming) former military T53 series turboshaft engines. This amendment requires conducting a revised operating cycle count (prorate) and initial and repetitive inspections for cracks of centrifugal compressor impellers. This amendment is prompted by a report of a military surplus helicopter that experienced low-cycle fatigue failure of the centrifugal compressor impeller, resulting in an uncontained engine failure. The actions specified by this AD are intended to prevent centrifugal compressor impeller failure, which can result in an uncontained engine failure, in-flight engine shutdown, or damage to the helicopter.

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 2002-09-09 applies to

MakesLycoming

ModelsT53-L-13B, T53-L-13B/D, T53-L-703, T53

Part-conditional — 1-100-078-07, 1-100-078-08.

Helicopter turboshaft engines. Requires a revised centrifugal-compressor-impeller operating cycle count (prorate) per Honeywell/AlliedSignal SBs T53-L-13B-0020 Rev 3, T53-L-13B/D-0020 Rev 1, and T53-L-703-0020 Rev 1, followed by removal of impellers exceeding the revised life limit; also requires repetitive inspections of impellers P/N 1-100-078-07 and 1-100-078-08 per SB T53-L-13B/D/703-0108 Rev 1, at intervals based on cycles-in-service, to prevent centrifugal compressor impeller failure.

Whether AD 2002-09-09 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 2002-09-09 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.