Is AD 47-10-25 a recurring Airworthiness Directive?

No — AD 47-10-25 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 47-10-25 apply to?

AD 47-10-25 applies to Lockheed, Eclipse-Pioneer — models Model 49, 49. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 47-10-25

one-time

AD 47-10-25 · 1947-01-01 · appliance

Airworthiness Directives; ) Applies to All Model 49 Serials Incorporating Eclipse Type 1193, Model 1, Style A Generators on Which the Serial Numbers Are Not

Which aircraft AD 47-10-25 applies to

MakesLockheedEclipse-Pioneer

ModelsModel 49, 49

Part-conditional — 63937.

Lockheed Model 49 aircraft with Eclipse Type 1193, Model 1, Style A generators whose serial numbers are NOT followed by letter 'M': replace 12 mounting head-to-yoke bolts in each generator with new 1/4-inch bolts P/N 63937 (Eclipse-Pioneer Bulletin No. 70), prior to March 1, 1947.

Whether AD 47-10-25 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 47-10-25 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.