Is AD 2001-17-31 a recurring Airworthiness Directive?

No — AD 2001-17-31 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2001-17-31 apply to?

AD 2001-17-31 applies to Rolls-Royce — models AE 2100A, AE 2100C, AE 2100D3, AE 3007A, AE 3007C, AE 2100, AE 3007. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2001-17-31

one-time

Official AD 2001-17-31 · FR doc 01-21894 · 2001-08-31 · turboprop engine

Airworthiness Directives; Rolls-Royce Corporation (Formerly Allison Engine Company) AE 2100 Turboprop and AE 3007 Turbofan Series Engines

What this AD requires

This amendment adopts a new airworthiness directive (AD), that is applicable to Rolls-Royce Corporation (formerly Allison Engine Company) AE 2100 turboprop and AE 3007 turbofan series engines. This amendment requires a one-time acid etch inspection of the 2nd stage high pressure turbine (HPT) wheel for evidence of damaged material indicating that a higher probability of cracking in future service exists. If the etch inspection reveals damage, this AD requires replacement of the turbine wheel with a serviceable part. This amendment is prompted by a report of a 2nd stage HPT wheel that was returned from the field with cracks in the aft bore face. The actions specified by this AD are intended to detect and prevent early development of cracks due to low cycle fatigue of the 2nd stage HPT wheel in the aft bore face that can lead to wheel failure, power loss, and possible damage to the airplane.

Which aircraft AD 2001-17-31 applies to

MakesRolls-Royce

ModelsAE 2100A, AE 2100C, AE 2100D3, AE 3007A, AE 3007C, AE 2100, AE 3007

Part-conditional — 23050912, 23063462, 23064822.

Applies to Rolls-Royce AE 2100A/2100C/2100D3 turboprop engines and AE 3007A/3007C turbofan engines (2nd stage HPT wheel acid-etch inspection), per RR Alert SBs listed for each model; compliance timing varies by 2nd stage HPT turbine wheel part number (23050912, 23063462 [including a S/N MM14062 reference], 23064822) per Tables 1-2 (table truncated in source).

Whether AD 2001-17-31 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 2001-17-31 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.