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Airworthiness Directive 52-18-01

one-time
AD 52-18-01 · 1952-01-01 · airframe

Airworthiness Directives; and splitting during each periodic inspection until accomplishment of the above. FOOTER: Airlift International, Inc. Curtiss-Wrigh

Which aircraft AD 52-18-01 applies to

MakesAirlift International, Inc.Curtiss-Wright CorporationFlying Tiger Line, Inc.L. B. Smith Aircraft CorporationSkyways International Trading And Transport Co.
ModelsC-46E, C-46F, C-46A, C-46D, C-46

Requires inspection for cracking and splitting at each periodic inspection until the corrective action described is accomplished.

Whether AD 52-18-01 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 52-18-01 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.

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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.