Is AD 2012-22-16 a recurring Airworthiness Directive?

No — AD 2012-22-16 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 2012-22-16

Q: Which aircraft does AD 2012-22-16 apply to?

AD 2012-22-16 applies to Pratt & Whitney Division — models PW4050, PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4062A. Serial/part conditions may narrow it to specific aircraft.

one-time

Official AD 2012-22-16 · FR doc 2012-27168 · 2012-11-14 · turbine engine

Airworthiness Directives; Pratt & Whitney Division Turbofan Engines

What this AD requires

We are adopting a new airworthiness directive (AD) for all Pratt & Whitney Division PW4050, PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4062A, PW4152, PW4156, PW4156A, PW4158, PW4160, PW4460, PW4462, and PW4650 turbofan engines, including models with any dash number suffix. This AD was prompted by 16 reports of damaged or failed 3rd stage low-pressure turbine (LPT) duct segments. This AD requires removing from service certain part numbers (P/Ns) of 3rd stage LPT duct segments. We are issuing this AD to prevent failure of the 3rd stage LPT duct segments, which could lead to LPT rotor damage, uncontained engine failure, and damage to the airplane.

Which aircraft AD 2012-22-16 applies to

MakesPratt & Whitney Division

ModelsPW4050, PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4062A, PW4152, PW4156, PW4156A, PW4158, PW4160, PW4460, PW4462, PW4650, PW4000

Part-conditional — 50N095, 50N095-001, 50N235, 50N235-001, 50N494-01, 50N494-001, 50N495-01, 50N495-001.

Applies only to engines with the listed 3rd stage low-pressure turbine (LPT) duct segments installed; includes models with any dash number suffix.

Whether AD 2012-22-16 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 2012-22-16 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.