Is AD 90-22-02 a recurring Airworthiness Directive?

No — AD 90-22-02 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 90-22-02 apply to?

AD 90-22-02 applies to Pratt & Whitney — models PW4050, PW4052, PW4056, PW4060, PW4060A, PW4152, PW4156, PW4158. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 90-22-02

one-time

AD 90-22-02 · 1990-01-01 · turbine engine

Airworthiness Directives; flight, LPT shafts found cracked during inspections conducted in accordance with (a) or (b) above. (d) LPT shafts which have been

Which aircraft AD 90-22-02 applies to

MakesPratt & Whitney

ModelsPW4050, PW4052, PW4056, PW4060, PW4060A, PW4152, PW4156, PW4158, PW4460

Low pressure turbine (LPT) shaft crack inspection; cracked shafts removed from service prior to further flight.

Whether AD 90-22-02 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 90-22-02 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 →

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.