Is AD 82-12-04 a recurring Airworthiness Directive?

No — AD 82-12-04 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 82-12-04 apply to?

AD 82-12-04 applies to Detroit Diesel Allison — models 401, 401A, 401B, 402, 402A, 402B, 414, N22B. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 82-12-04

one-time

AD 82-12-04 · 1982-01-01 · appliance

Airworthiness Directives; DETROIT DIESEL ALLISON: Applies to Detroit Diesel Allison (DDA) Combined Power Turbine and Propeller Governor Assembly, DDA P/N 68

Which aircraft AD 82-12-04 applies to

MakesDetroit Diesel Allison

Models401, 401A, 401B, 402, 402A, 402B, 414, N22B, N24A, 250-B15G, 250-B17, 250-B17B, 250-B17C

Part-conditional — 6875708, 8210-018.

Amendment 39-4396. Applies to Detroit Diesel Allison (DDA) Combined Power Turbine and Propeller Governor Assembly, DDA P/N 6875708 (Woodward P/N 8210-018), with specified serial numbers, as installed on the referenced engine/airframe model designations (source text is a garbled scraped table cross-referencing Nomad TC Pty Ltd, Rolls-Royce Corporation, and Textron applications).

Whether AD 82-12-04 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 82-12-04 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.