Is AD 2011-25-10 a recurring Airworthiness Directive?

No — AD 2011-25-10 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2011-25-10 apply to?

AD 2011-25-10 applies to Pratt & Whitney — models JT9D-7R4H1, JT9D. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2011-25-10

one-time

Official AD 2011-25-10 · FR doc 2011-31342 · 2011-12-12 · turbine engine

Airworthiness Directives; Pratt & Whitney Corp. (PW) JT9D-7R4H1 Turbofan Engines

What this AD requires

We are adopting a new airworthiness directive (AD) for all PW JT9D-7R4H1 turbofan engines. This AD was prompted by reports of cracks in five high-pressure compressor (HPC) shafts. This AD requires removing certain HPC shafts before their certified life limits and establishes a new, lower life-limit for these parts. We are issuing this AD to correct the unsafe condition on these products.

Which aircraft AD 2011-25-10 applies to

MakesPratt & Whitney

ModelsJT9D-7R4H1, JT9D

Applies only to the JT9D-7R4H1 model; all other JT9D models (including JT9D-7R4E1 and JT9D-7R4E1H) are excluded from this AD.

Whether AD 2011-25-10 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 2011-25-10 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.