Is AD 2020-04-12 a recurring Airworthiness Directive?

No — AD 2020-04-12 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2020-04-12 apply to?

AD 2020-04-12 applies to Fokker Services B.V. — models F28 Mark 0070, F28 Mark 0100, F28. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2020-04-12

one-time

Official AD 2020-04-12 · FR doc 2020-04729 · 2020-03-09 · airframe

Airworthiness Directives; Fokker Services B.V. Airplanes

What this AD requires

The FAA is superseding Airworthiness Directives (ADs) 2012-22- 05 and 2018-19-03, which applied to certain Fokker Services B.V. Model F28 Mark 0070 and 0100 airplanes. AD 2012-22-05 required inspecting for cracks of the pistons on the main landing gear (MLG), and replacing the affected pistons if necessary. AD 2012-22-05 also required modifying the MLG, and revising the airplane maintenance program. AD 2018-19-03 required an inspection of the MLG, and replacement if necessary. This AD retains the requirements of AD 2012-22-05, expands the applicability, and requires a new modification or replacement of the MLG; as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by a determination that the required heat treatment may not have been applied to certain MLG pistons. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2020-04-12 applies to

MakesFokker Services B.V.

ModelsF28 Mark 0070, F28 Mark 0100, F28

Whether AD 2020-04-12 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 2020-04-12 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.