Is AD 2002-12-09 a recurring Airworthiness Directive?

Yes — AD 2002-12-09 requires a repetitive inspection every 3600 hours. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2002-12-09 apply to?

AD 2002-12-09 applies to Honeywell — models TPE331-12JR, TPE331-12UA, TPE331-12UAR, TPE331-12UHR, TPE331. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2002-12-09

recurring

Official AD 2002-12-09 · FR doc 02-14855 · 2002-06-18 · turboprop engine

Airworthiness Directives; Honeywell International Inc. (Formerly AlliedSignal Inc. and Garrett Turbine Engine Company) TPE331-11U, -12B, -12JR, -12UA, -12UAR, and -12UHR Series Turboprop Engines

What this AD requires

This amendment adopts a new airworthiness directive (AD) that is applicable to Honeywell International Inc. (formerly AlliedSignal Inc. and Garrett Turbine Engine Company) TPE331-11U, -12B, -12JR, - 12UA, -12UAR, and -12UHR series turboprop engines. This action requires repetitive Spectrometric Oil Analysis Program (SOAP) sampling, SOAP trend assessment, and inspections and replacement of certain gearbox components. This amendment is prompted by reports of spur gearshaft (bull gear) rim separations and high-speed pinion (HSP) assembly failures. The actions specified in this AD are intended to prevent bull gear rim separations and HSP assembly failures from abnormal gear wear, which could result in uncontained gearbox fragmentation, in-flight shutdowns, and engine rotor overspeed events.

Repetitive inspection. Re-inspect every 3600 hours. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2002-12-09 applies to

MakesHoneywell

ModelsTPE331-12JR, TPE331-12UA, TPE331-12UAR, TPE331-12UHR, TPE331

All TPE331 engines except the TPE331-12JR series require periodic SOAP oil/filter sampling per Honeywell ASB TPE331-A79-0034; TPE331-12UA/-12UAR/-12UHR engines additionally require gearbox component inspection/rework per paragraph (c) using Honeywell ASB TPE331-A72-2087 and related service bulletins.

Whether AD 2002-12-09 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 2002-12-09 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.