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Airworthiness Directive 66-30-04

one-time
AD 66-30-04 · 1966-01-01 · airframe

Airworthiness Directives; was effective on October 21, 1967. Amendment 39-711 was effective January 18, 1969. This amendment 39-2870 is effective April 13,

Which aircraft AD 66-30-04 applies to

MakesMaryland Air Industries, Inc.
ModelsF-27, F-27A, F-27B, F-27F, F-27G, F-27J, F-27M, FH-227, FH-227B, FH-227C, FH-227D, FH-227E

Original AD effective October 21, 1967; Amendment 39-711 effective January 18, 1969; Amendment 39-2870 effective April 13, 1977.

Whether AD 66-30-04 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 66-30-04 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.