Is AD 05-11880 a recurring Airworthiness Directive?

No — AD 05-11880 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 05-11880 apply to?

AD 05-11880 applies to The Lancair Company — models LC41-550FG. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 05-11880

one-time

AD 05-11880 · 2005-06-20 · airframe

Airworthiness Directives; The Lancair Company Model LC41-550FG Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain The Lancair Company (Lancair) Model LC41-550FG airplanes. This AD requires both visual and dye penetrant inspections of the elevator torque tube assembly for cracks. If a crack is found, this AD requires replacement with a modified assembly that incorporates a steel doubler. This AD also requires replacement of the modified elevator torque tube assembly every 300 hours time-in-service or 18 months (whichever occurs first). This AD results from cracks found in the weld area of the elevator torque tube assembly. We are issuing this AD to detect and correct cracks in the elevator torque tube assembly, which could result in failure of the elevator torque tube assembly and subsequent loss of control of the airplane.

Which aircraft AD 05-11880 applies to

MakesThe Lancair Company

ModelsLC41-550FG

certain

Whether AD 05-11880 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 05-11880 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 →Read the full directive (Federal Register)

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.