Is AD 52-25-01 a recurring Airworthiness Directive?

No — AD 52-25-01 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 52-25-01

Q: Which aircraft does AD 52-25-01 apply to?

Applicability depends on the aircraft's type certificate; check it against the specific tail.

one-time

AD 52-25-01 · 1952-01-01 · appliance

Airworthiness Directives; at right angles to the axis of the discharge port boss. Some pumps incorporate a plugged hole in the discharge port which may be e

Which aircraft AD 52-25-01 applies to

Applicability depends on the aircraft’s type certificate — check it against the specific tail.

Whether AD 52-25-01 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 52-25-01 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.