Is AD 2022-00891 a recurring Airworthiness Directive?

No — AD 2022-00891 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2022-00891 apply to?

AD 2022-00891 applies to Safran Helicopter Engines, S.A. — models Arrius 2B1, Arrius 2B1A, Arrius 2B2, Arrius. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2022-00891

one-time

AD 2022-00891 · 2022-01-19 · 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 superseding Airworthiness Directive (AD) 2005-12-08 for certain Safran Helicopter Engines, S.A. (Safran Helicopter Engines) Arrius 2B1, 2B1A, 2B1A-1, and 2B2 model turboshaft engines. AD 2005-12- 08 required replacing the software in the engine electronic control unit (EECU). This AD was prompted by a report of simultaneous loss of automatic control on both engines installed on an Airbus Helicopters Deutschland (formerly Eurocopter Deutschland) EC135 helicopter during flight. This AD requires replacement of the EECU or upgrade of the EECU software for engines with a certain EECU part number (P/N) installed. This AD also prohibits installation of an affected EECU onto any engine. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2022-00891 applies to

MakesSafran Helicopter Engines, S.A.

ModelsArrius 2B1, Arrius 2B1A, Arrius 2B2, Arrius

Part-conditional — 70EMF01080, 70EMF01090, 70EMF01100, 70EMF01120, 70EMH01000, 70EMH01010, 70EMM01000.

Applies only to engines with an installed engine electronic control unit (EECU) having P/N 70EMF01080 or 70EMF01090 (Arrius 2B1 without overspeed protection option, TU 19C); P/N 70EMF01100 or 70EMF01120 (Arrius 2B1 with overspeed protection option, TU 67C or TU 23C); P/N 70EMH01000 or 70EMH01010 (Arrius 2B1A); or P/N 70EMM01000 (Arrius 2B2). Arrius 2B1A engines with mod TU45C applied are identified on the engine identification plate as Arrius 2B1A_1. Type Certificate previously held by Turbomeca S.A.

Whether AD 2022-00891 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

Supersession

Supersedes AD 2005-12-08.

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 2022-00891 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.