Is AD 73-15-02 a recurring Airworthiness Directive?

No — AD 73-15-02 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 73-15-02 apply to?

AD 73-15-02 applies to Pratt & Whitney — models JT3D-1, JT3D-1-MC6, JT3D-1-MC7, JT3D-3, JT3D-3B, JT3D. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 73-15-02

one-time

AD 73-15-02 · 1973-01-01 · turbine engine

Airworthiness Directives; the inspection every 100 hours time in service. (c) If two or three lugs are found missing, remove the engine within the next 50 h

Which aircraft AD 73-15-02 applies to

MakesPratt & Whitney

ModelsJT3D-1, JT3D-1-MC6, JT3D-1-MC7, JT3D-3, JT3D-3B, JT3D

Turbine case lug inspection every 100 hours time in service; if two or three lugs are found missing, remove the engine within the next 50 hours; if four or more lugs are missing, remove from service immediately. Turbine cases may be repaired in accordance with the procedures described. Effective September 14, 1973.

Whether AD 73-15-02 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 73-15-02 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.

Look up a tail number →

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.