Is AD 2021-03-12 a recurring Airworthiness Directive?

Yes — AD 2021-03-12 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2021-03-12 apply to?

AD 2021-03-12 applies to Dassault Aviation — models Falcon 10. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2021-03-12

recurring

Official AD 2021-03-12 · FR doc 2021-03601 · 2021-02-24 · airframe

Airworthiness Directives; Dassault Aviation Airplanes

What this AD requires

The FAA is superseding Airworthiness Directive (AD) 2019-03- 27, which applied to all Dassault Aviation Model Falcon 10 airplanes. AD 2019-03-27 required repetitive detailed inspections of certain wing anti-ice outboard flexible hoses, and replacement of certain wing anti- ice outboard flexible hoses. This AD continues to require the actions in AD 2019-03-27, and also adds a new life limit for the improved wing anti-ice flexible hose; as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by a report indicating that certain wing anti-ice outboard flexible hoses were found damaged, likely resulting from the installation process, and the development of an improved wing anti-ice flexible hose. 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 2021-03-12 applies to

MakesDassault Aviation

ModelsFalcon 10

Applies to all Falcon 10 airplanes, all serial numbers.

Whether AD 2021-03-12 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 2021-03-12 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.