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Airworthiness Directive 73-07-08

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AD 73-07-08 · 1973-01-01 · turbine engine

Airworthiness Directives; HEADING: PRATT & WHITNEY Models JT3D-1, JT3D-1-MC6, JT3D-1-MC7, JT3D-3 and JT3D-3B Engines ACTION: SUMMARY: DATES: ADDRESSES: FOR

Which aircraft AD 73-07-08 applies to

MakesPratt & Whitney
ModelsJT3D-1, JT3D-1-MC6, JT3D-1-MC7, JT3D-3, JT3D-3B, JT3D

Amendment 39-1616 as amended by Amendment 39-1630. Applies to all Pratt & Whitney JT3D-1, JT3D-1-MC6, JT3D-1-MC7, JT3D-3 and JT3D-3B model engines.

Whether AD 73-07-08 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 73-07-08 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.