Is AD 2021-09-05 a recurring Airworthiness Directive?

Yes — AD 2021-09-05 requires a repetitive inspection every 150 hours. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2021-09-05 apply to?

AD 2021-09-05 applies to Airbus Helicopters — models EC130B4, EC130T2, EC130. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2021-09-05

recurring

Official AD 2021-09-05 · FR doc 2021-08781 · 2021-04-28 · airframe

Airworthiness Directives; Airbus Helicopters

What this AD requires

The FAA is superseding Airworthiness Directive (AD) 2016-08-20 for certain Airbus Helicopters (previously Eurocopter France) EC130B4 and EC130T2 helicopters. AD 2016-08-20 required repetitively inspecting the tail boom to Fenestron junction frame (junction frame) for a crack. This new AD continues to require inspecting the junction frame with the horizontal stabilizer removed, and expands the applicability, revises the compliance time and the inspection procedures for inspecting the junction frame, adds inspection procedures for certain helicopters, allows repair of the junction frame, and requires modifying and then repetitively inspecting the junction frame and reporting certain information. This AD was prompted by additional cracks and the availability of a design change that modifies the junction frame. The actions of this AD are intended to address an unsafe condition on these products.

Repetitive inspection. Re-inspect every 150 hours. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2021-09-05 applies to

MakesAirbus Helicopters

ModelsEC130B4, EC130T2, EC130

Applies only to helicopters with a tail boom to Fenestron junction frame installed.

Whether AD 2021-09-05 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 2021-09-05 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.