Is AD 2021-15041 a recurring Airworthiness Directive?

No — AD 2021-15041 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2021-15041 apply to?

AD 2021-15041 applies to Safran Helicopter Engines — models Arriel 2C, Arriel 2S1, Arriel. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2021-15041

one-time

AD 2021-15041 · 2021-07-15 · turboshaft engine

Airworthiness Directives; Safran Helicopter Engines, S.A. (Type Certificate Previously Held by Turbomeca, S.A.) Turboshaft Engines

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for all Safran Helicopter Engines, S.A. Arriel 2C and Arriel 2S1 model turboshaft engines. This AD was prompted by reports of error messages on the full authority digital engine control (FADEC) B digital engine control unit (DECU), caused by blistering of the varnish on the DECU circuit board. This AD requires the replacement of certain FADEC B DECUs. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2021-15041 applies to

MakesSafran Helicopter Engines

ModelsArriel 2C, Arriel 2S1, Arriel

Whether AD 2021-15041 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 2021-15041 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.