Is AD 51-14-01 a recurring Airworthiness Directive?

No — AD 51-14-01 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 51-14-01 apply to?

AD 51-14-01 applies to Thompson, Beech. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 51-14-01

one-time

AD 51-14-01 · 1951-01-01 · appliance

Airworthiness Directives; pump (identified by either a 1/8 inch red band around the pump body, or the suffix "H" in the pump serial number, in series with a

Which aircraft AD 51-14-01 applies to

MakesThompson Beech

Part-conditional — TF-1100.

Thompson TF-1100 engine-driven fuel pump identified by a 1/8 inch red band around the pump body or suffix 'H' in the pump serial number (or '2'/'M2' stamped after TF-1100 on nameplate), installed in accordance with Beech Installation Instructions (revised); aircraft model not stated in available text.

Whether AD 51-14-01 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 51-14-01 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.