Is AD 2019-03641 a recurring Airworthiness Directive?

Yes — AD 2019-03641 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2019-03641 apply to?

AD 2019-03641 applies to Safran Helicopter Engines, S.A. — models ASTAZOU XIV B, ASTAZOU XIV H, Astazou XIV. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2019-03641

recurring

AD 2019-03641 · 2019-03-01 · turboshaft engine

Airworthiness Directives; Safran Helicopter Engines, S.A., Turboshaft Engines

What this AD requires

We are adopting a new airworthiness directive (AD) for all Safran Helicopter Engines, S.A. (Safran Helicopter Engines), ASTAZOU XIV B and H model engines with certain 3rd-stage turbine wheels installed. This AD requires initial and repetitive inspections of the 3rd-stage turbine wheels. This AD was prompted by a report that six 3rd-stage turbine wheels were returned to service after a repair that could result in exceedance of the allowable vibration threshold during operation. 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 2019-03641 applies to

MakesSafran Helicopter Engines, S.A.

ModelsASTAZOU XIV B, ASTAZOU XIV H, Astazou XIV

Part-conditional — 0 265 25 706 0, 0 265 25 705 0.

Applies to engines with 3rd-stage turbine wheel P/N 0 265 25 706 0 (S/N AD78691AD, AD78703AD, AD93845AD, CC52860, RD39596) or P/N 0 265 25 705 0 (S/N L232AD) installed, per Figure 1 to paragraph (c) of this AD.

Whether AD 2019-03641 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 2019-03641 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.