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Airworthiness Directive 47-33-07

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AD 47-33-07 · 1947-01-01 · airframe

Airworthiness Directives; Beech Models D18S, D18C and D18C-T Airplanes

Which aircraft AD 47-33-07 applies to

MakesBeech
ModelsD18S, D18C, D18C-T, 18

Was Mandatory Note 2 of AD-770-1 and Mandatory Note 3 of AD-765-1. Applies to airplanes with Static Alternate Source Selector Valve. Compliance required prior to (source text truncated).

Whether AD 47-33-07 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 47-33-07 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.