Is AD 2021-28580 a recurring Airworthiness Directive?

No — AD 2021-28580 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2021-28580 apply to?

AD 2021-28580 applies to Saab Ab — models SAAB 2000. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2021-28580

one-time

AD 2021-28580 · 2022-01-11 · airframe

Airworthiness Directives; Saab AB, Support and Services (Formerly Known as Saab AB, Saab Aeronautics) Airplanes

What this AD requires

The FAA is superseding Airworthiness Directive (AD) 2020-07- 17, which applied to all Saab AB, Support and Services Model SAAB 2000 airplanes. AD 2020-07-17 required revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. Since the FAA issued AD 2020-07- 17, it has determined that new or more restrictive airworthiness limitations are necessary. This AD retains the requirements of AD 2020- 07-17 and requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations, as specified in a European Union Aviation Safety Agency (EASA) AD. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2021-28580 applies to

MakesSaab Ab

ModelsSAAB 2000

Whether AD 2021-28580 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 2021-28580 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.