Is AD 05-831 a recurring Airworthiness Directive?

No — AD 05-831 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 05-831 apply to?

AD 05-831 applies to The Lancair Company — models LC40-550FG, LC42-550FG. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 05-831

one-time

AD 05-831 · 2005-01-19 · airframe

Airworthiness Directives; The Lancair Company Models LC40-550FG and LC42-550FG Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain The Lancair Company (Lancair) Models LC40-550FG and LC42-550FG airplanes. This AD requires you to incorporate additional takeoff chart distance values information into the Performance Section of the FAA- approved Airplane Flight Manual (AFM). This AD results from flight testing that revealed that the takeoff distance values for the affected airplanes could not be duplicated. We are issuing this AD to prevent potential impact with terrain or obstruction during takeoff due to incorrect takeoff distance values.

Which aircraft AD 05-831 applies to

MakesThe Lancair Company

ModelsLC40-550FG, LC42-550FG

certain

Whether AD 05-831 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 05-831 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.