Airworthiness Directive 52-14-01

one-time
AD 52-14-01 · 1952-01-01 · propeller

Airworthiness Directives; DOUGLAS: Applies to All DC-6, DC-6A and DC-6B Airplanes With Hamilton Standard Propellers Except as Otherwise Indicated. Items I a

Which aircraft AD 52-14-01 applies to

MakesDouglas Applies To All Dc-6 Dc-6A And Dc-6B
ModelsDC-6B
Applies to all models of the make above.

Whether AD 52-14-01 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 complianceThe specific action taken (inspected, replaced, modified) and to what revision.
DateWhen the work was done.
Aircraft timeTotal time in service / tach at compliance — how recurring next-due is computed.
Signature & certificateThe A&P/IA who returned it to service, with certificate number.
Is AD 52-14-01 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.