Is AD 2012-06-14 a recurring Airworthiness Directive?

No — AD 2012-06-14 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2012-06-14 apply to?

AD 2012-06-14 applies to Pratt & Whitney — models JT9D-7R4G2, JT9D-7R4H1, JT9D. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2012-06-14

one-time

Official AD 2012-06-14 · FR doc 2012-6952 · 2012-03-23 · turbine engine

Airworthiness Directives; Pratt & Whitney (PW)Turbofan Engines

What this AD requires

We are adopting a new airworthiness directive (AD) for PW JT9D-7R4G2 and -7R4H1 turbofan engines. This AD was prompted by the determination that a new lower life limit for high-pressure turbine (HPT) 1st stage air seals, part number (P/N) 735907, is necessary. This AD establishes a new lower life limit for HPT 1st stage air seals, P/N 735907, and requires removing them from service using a drawdown schedule. We are issuing this AD to prevent critical life-limited rotating engine part failure and damage to the airplane.

Which aircraft AD 2012-06-14 applies to

MakesPratt & Whitney

ModelsJT9D-7R4G2, JT9D-7R4H1, JT9D

Whether AD 2012-06-14 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 2012-06-14 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.