Is AD 2019-03-01 a recurring Airworthiness Directive?

Yes — AD 2019-03-01 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Airworthiness Directive 2019-03-01

Q: Which aircraft does AD 2019-03-01 apply to?

AD 2019-03-01 applies to Pratt & Whitney Division — models PW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, PW4090-3, PW4000. Serial/part conditions may narrow it to specific aircraft.

recurring

Official AD 2019-03-01 · FR doc 2019-02453 · 2019-02-15 · turbine engine

Airworthiness Directives; Pratt & Whitney Division (PW) Turbofan Engines

What this AD requires

We are adopting a new airworthiness directive (AD) for certain Pratt & Whitney Division (PW) PW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, and PW4090-3 turbofan engines. This AD was prompted by an in-flight failure of a 1st-stage low-pressure compressor (LPC) blade. This AD requires initial and repetitive thermal acoustic imaging (TAI) inspections for cracks in certain 1st-stage LPC blades and removal of those blades that fail inspection. We are issuing this AD to address the unsafe condition on these products.

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 2019-03-01 applies to

MakesPratt & Whitney Division

ModelsPW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, PW4090-3, PW4000

Part-conditional — 52A241, 55A801, 55A801-001, 55A901, 55A901-001, 56A201, 56A201-001, 56A221.

Applies only to engines with 1st-stage low-pressure compressor (LPC) blade, P/N 52A241, 55A801, 55A801-001, 55A901, 55A901-001, 56A201, 56A201-001, or 56A221, installed.

Whether AD 2019-03-01 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 2019-03-01 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.