Is AD 2012-24-01 a recurring Airworthiness Directive?

Yes — AD 2012-24-01 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2012-24-01 apply to?

AD 2012-24-01 applies to Rolls-Royce Deutschland Ltd & Co Kg — models TAY 620-15, TAY. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2012-24-01

recurring

Official AD 2012-24-01 · FR doc 2012-28638 · 2012-11-29 · turbine engine

Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines

What this AD requires

We are adopting a new airworthiness directive (AD) for certain serial number (S/N) Rolls-Royce Deutschland Ltd & Co KG (RRD) TAY 620- 15 turbofan engines. This AD requires initial and repetitive general inspections and ultrasonic inspections (UI) of low-pressure compressor (LPC) fan blades for cracks. If any fan blade is found cracked, this AD requires replacement of the LPC fan blade set and the LPC fan disc. This AD was prompted by a report of an LPC fan blade separation. We are issuing this AD to detect cracks in the LPC fan blades, which could lead to uncontained failure of the LPC fan blades and LPC fan disc, and damage to the airplane.

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

Which aircraft AD 2012-24-01 applies to

MakesRolls-Royce Deutschland Ltd & Co Kg

ModelsTAY 620-15, TAY

Applies only to engines with serial numbers 17054, 17085, 17088, 17107, and 17166 (discrete list, not a contiguous range).

Whether AD 2012-24-01 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 2012-24-01 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.