Is AD 74-06-01 a recurring Airworthiness Directive?

No — AD 74-06-01 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 74-06-01 apply to?

AD 74-06-01 applies to Piper — models Aztec C, Aztec D, Aztec E. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 74-06-01

one-time

AD 74-06-01 · 1974-01-01 · appliance

Airworthiness Directives; accordance with AiResearch Aviation Company Service Bulletin No. 14.1.10, dated February 6, 1974 or later FAA-approved revision, f

Which aircraft AD 74-06-01 applies to

MakesPiper

ModelsAztec C, Aztec D, Aztec E

Serial-conditional — narrows to serials 27-2505–?.

Part-conditional — 286-P23-064-153.

AiResearch Aviation Company turbocharger modification per AiResearch SB No. 14.1.10 (dated Feb 6, 1974) and SB No. 14.1.11 (dated Feb 6, 1974), or later FAA-approved revisions, for serial numbers 27-2505 and subsequent; equivalent modification may be approved by the Chief, Aircraft Engineering Division, FAA Western Region; aircraft may be flown to a base for compliance.

Whether AD 74-06-01 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

Supersession

Superseded by AD 2005-01-10 — comply with the superseding directive.

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 74-06-01 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.