Is AD 2021-02-08 a recurring Airworthiness Directive?

Yes — AD 2021-02-08 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Airworthiness Directive 2021-02-08

Q: Which aircraft does AD 2021-02-08 apply to?

AD 2021-02-08 applies to Airbus Helicopters — models AS-365N2, AS 365 N3, EC 155B, EC155B1, SA-365N, SA-365N1, SA-366G1, AS365. Serial/part conditions may narrow it to specific aircraft.

recurring

Official AD 2021-02-08 · FR doc 2021-05091 · 2021-03-11 · airframe

Airworthiness Directives; Airbus Helicopters

What this AD requires

The FAA is superseding Airworthiness Directive (AD) 2018-19- 01, which applied to all Airbus Helicopters Model AS-365N2, AS 365 N3, EC 155B, EC155B1, SA-365N1, and SA-366G1 helicopters. AD 2018-19-01 required repetitive inspections of the aft fuselage outer skin. This AD continues to require repetitive inspections and adds Model SA-365N helicopters, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by aft fuselage (baggage compartment area) outer skin disbonding and a determination that Model SA-365N helicopters are also affected by the unsafe condition identified in AD 2018-19-01. The FAA is 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 2021-02-08 applies to

MakesAirbus Helicopters

ModelsAS-365N2, AS 365 N3, EC 155B, EC155B1, SA-365N, SA-365N1, SA-366G1, AS365, EC155, SA365, SA366

Applies to all serial numbers of the listed models.

Whether AD 2021-02-08 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 2021-02-08 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.