Is AD 64-12-03 a recurring Airworthiness Directive?

No — AD 64-12-03 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 64-12-03 apply to?

AD 64-12-03 applies to On Mark Engineering Company. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 64-12-03

one-time

AD 64-12-03 · 1964-01-01 · other

Airworthiness Directives; No. SA692WE, revised July 1, 1964, issued to the On Mark Engineering Company, Van Nuys, California. (2) Technical data listed in S

Which aircraft AD 64-12-03 applies to

MakesOn Mark Engineering Company

Extracted snippet references technical data under STC No. SA692WE (revised July 1, 1964) and STC No. SA1107WE (dated November 24, 1965), both issued to the On Mark Engineering Company, Van Nuys, California; no explicit aircraft make/model applicability statement is present in the retrieved text.

Whether AD 64-12-03 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 64-12-03 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.