Is AD 2002-12-08 a recurring Airworthiness Directive?

No — AD 2002-12-08 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2002-12-08 apply to?

AD 2002-12-08 applies to Honeywell — models ALF502R, LF507-1F, LF507-1H, ALF502L, ALF502, LF507. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2002-12-08

one-time

Official AD 2002-12-08 · FR doc 02-14697 · 2002-06-12 · turbine engine

Airworthiness Directives; Honeywell International, Inc. (formerly AlliedSignal Inc., and Textron Lycoming) ALF502 and LF507 Series Turbofan Engines

What this AD requires

This amendment adopts a new airworthiness directive (AD), that is applicable to Honeywell International, Inc. (formerly AlliedSignal Inc., and Textron Lycoming) ALF502 and LF507 series turbofan engines. This amendment requires removal from service of certain gas producer turbine (GPT) components prior to reaching new, lower cyclic life limits using drawdown plans and replacing with serviceable parts. This amendment is prompted by continuous analysis of field-returned hardware indicating smaller service life margins than originally expected. The actions specified by this AD are intended to prevent GPT component failure, which could result in an uncontained engine failure and damage to the airplane.

Which aircraft AD 2002-12-08 applies to

MakesHoneywell

ModelsALF502R, LF507-1F, LF507-1H, ALF502L, ALF502, LF507

Part-conditional — 2-121-075-15, 2-121-075-21, 2-121-075-27, 2-121-075-28, 2-121-075-36.

Requires drawdown/replacement of first turbine rotor sealing plates (P/N 2-121-075-15, -21, -27, -28, -36) on a cycles-since-new schedule that varies by engine model (ALF502R/LF507-1F/LF507-1H vs. ALF502L), per Table 1; first turbine rotor discs are addressed separately in paragraph (b).

Whether AD 2002-12-08 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 2002-12-08 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.