Is AD 93-09-12 a recurring Airworthiness Directive?

No — AD 93-09-12 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 93-09-12

Q: Which aircraft does AD 93-09-12 apply to?

AD 93-09-12 applies to Fokker Services — models F27 Mark 050, F27 Mark 100, F27 Mark 200, F27 Mark 300, F27 Mark 400, F27 Mark 500, F27 Mark 600, F27 Mark 700. Serial/part conditions may narrow it to specific aircraft.

one-time

AD 93-09-12 · 1993-01-01 · airframe

Airworthiness Directives; March 8, 1991. (1) If no crack is found, prior to further flight, mark the upper members in accordance with Fokker Service Bulleti

Which aircraft AD 93-09-12 applies to

MakesFokker Services

ModelsF27 Mark 050, F27 Mark 100, F27 Mark 200, F27 Mark 300, F27 Mark 400, F27 Mark 500, F27 Mark 600, F27 Mark 700, F27

Wing upper member crack inspection, marking, replacement, and rework per Fokker Service Bulletin F27/32-162, dated March 8, 1991.

Whether AD 93-09-12 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 93-09-12 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 →

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.