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Airworthiness Directive 74-18-04

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AD 74-18-04 · 1974-01-01 · airframe

Airworthiness Directives; approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region. This amendment becomes effective August 30, 1974

Which aircraft AD 74-18-04 applies to

MakesTextron Aviation Inc.
ModelsA100, A100-1 (U-21J), A100A, A100C

Applicability read from the AD teaser — confirm exact model/serial from the records.

Whether AD 74-18-04 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 74-18-04 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.

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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.