Airworthiness Directive 55-15-06
one-timeAD 55-15-06 · 1955-01-01 · airframe
Airworthiness Directives; LOCKHEED Models 049, 149, 649-749, 1049C, 1049D, and 1049E Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CON
Which aircraft AD 55-15-06 applies to
MakesLockheed
Models049, 149, 649-749, 1049C, 1049D, 1049E
Serial-conditional — narrows to serials 1963–1980, 2021–2088, 2503–2590, 2614–2618.
Whether AD 55-15-06 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 55-15-06 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.