Is AD 2002-21-15 a recurring Airworthiness Directive?

No — AD 2002-21-15 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2002-21-15 apply to?

AD 2002-21-15 applies to Honeywell — models TPE331. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2002-21-15

one-time

Official AD 2002-21-15 · FR doc 02-26790 · 2002-10-22 · turboprop engine

Airworthiness Directives; Honeywell International Inc. TPE331 Series Turboprop and TSE331-3U 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., Garrett Engine Division, Garrett Turbine Engine Company, and AiResearch Manufacturing Company of Arizona) TPE331 series turboprop and TSE331-3U series turboshaft engines. This amendment requires replacing second stage turbine stator assemblies, part numbers (P/N's) 894528-1, -2, -3, -5, -6, -10, and -11, with serviceable turbine stator assemblies. This amendment is prompted by reports of six uncontained separations of the second stage turbine wheels associated with obstructed internal cooling holes or passage in the vanes of the second stage turbine stator which may result in contact and rub into the turbine rotor. The actions specified by this AD are intended to prevent uncontained turbine rotor separation and damage to the aircraft.

Which aircraft AD 2002-21-15 applies to

MakesHoneywell

ModelsTPE331

Part-conditional — 894528-1, 894528-2, 894528-3, 894528-5, 894528-6, 894528-10, 894528-11.

AD requires replacing second stage turbine stator assemblies P/N 894528-1/-2/-3/-5/-6/-10/-11 with new or reworked assemblies at next removal or turbine section inspection, not to exceed 3,100 engine hours since last turbine section inspection, per Honeywell ASB TPE331-A72-2082 and SB TPE331-72-2085RWK (both dated 2001-05-16); prohibits reinstallation of listed P/Ns after AD effective date.

Whether AD 2002-21-15 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 2002-21-15 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.