Is AD 2001-23-09 a recurring Airworthiness Directive?

No — AD 2001-23-09 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2001-23-09 apply to?

AD 2001-23-09 applies to Honeywell — models TFE731. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2001-23-09

one-time

Official AD 2001-23-09 · FR doc 01-28688 · 2001-11-16 · turbine engine

Airworthiness Directives; Honeywell International Inc. TFE731-2, -3, and -4 Series Turbofan Engines

What this AD requires

This amendment supersedes two existing airworthiness directives (ADs), applicable to Honeywell International Inc. (formerly AlliedSignal Inc. and Garrett Turbine Engine Co.) TFE731-2, -3, and -4 series turbofan engines. Those AD's currently require removing certain fan rotor discs from service in accordance with a drawdown schedule, and establishing new fan rotor disc life limits. This amendment requires stricter life limits for certain fan rotor discs. This amendment is prompted by the availability of an improved fan rotor disc and by a reduction in the probability of fan rotor disc failure by terminating the life of the older, high-stressed, fan rotor disc. The actions specified in this AD are intended to prevent failure of the fan rotor disc due to fatigue cracking in the dovetail slots, which could result in in-flight engine shutdown, uncontained engine failure, and damage to the airplane.

Which aircraft AD 2001-23-09 applies to

MakesHoneywell

ModelsTFE731

Part-conditional — 3072162-All, 3072816-All, 3073436-All, 3073539-All, 3074529-All.

Requires removal/replacement of listed fan rotor disc part numbers (all dash numbers) on Honeywell TFE731 engines at next access/scheduled inspection or by December 31, 2002, whichever first, per Honeywell Alert SB TFE731-A72-3668, to prevent dovetail-slot fatigue cracking.

Whether AD 2001-23-09 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 2001-23-09 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.