Is AD 54-12-02 a recurring Airworthiness Directive?

No — AD 54-12-02 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 54-12-02 apply to?

AD 54-12-02 applies to Continental — models W-670-6A, W-670-6N, W-670. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 54-12-02

one-time

AD 54-12-02 · 1954-01-01 · reciprocating engine

Airworthiness Directives; vibration stress surveys conducted on the 102-inch diameter configuration, these propellers were approved vibration wise for insta

Which aircraft AD 54-12-02 applies to

MakesContinental

ModelsW-670-6A, W-670-6N, W-670

applicability read from the AD teaser — confirm exact model/serial from the records

Whether AD 54-12-02 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 54-12-02 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.