Is AD 85-21-02 a recurring Airworthiness Directive?

No — AD 85-21-02 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 85-21-02 apply to?

AD 85-21-02 applies to True Flight Holdings Llc — models AA-1, AA-1A, AA-1B, AA-1C. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 85-21-02

one-time

AD 85-21-02 · 1985-01-01 · airframe

Airworthiness Directives; dated March 11, 1985, covers the subject matter of this AD. This amendment becomes effective on October 28, 1985. FOOTER: True Fli

Which aircraft AD 85-21-02 applies to

MakesTrue Flight Holdings Llc

ModelsAA-1, AA-1A, AA-1B, AA-1C

References a document dated March 11, 1985 covering the subject matter; amendment effective October 28, 1985.

Whether AD 85-21-02 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 85-21-02 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.