Is AD 2011-04-08 a recurring Airworthiness Directive?

No — AD 2011-04-08 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2011-04-08 apply to?

AD 2011-04-08 applies to Learjet — models 45. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2011-04-08

one-time

Official AD 2011-04-08 · FR doc 2011-3534 · 2011-02-24 · airframe

Airworthiness Directives; Learjet Inc. Model 45 Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires a general visual inspection for damage of wiring (including chafing, pinched wires, and exposed wires) and correct routing of wires in the left and right circuit breaker panels, and related investigative and corrective actions if necessary. This AD results from reports of wire damage on the pilot and copilot circuit breaker panels caused by a short circuit between chafed wiring and the circuit breaker panel forward mounting bracket. We are issuing this AD to detect and correct damaged or misrouted wires, which could result in a short circuit and the loss of systems associated with the wiring (including fire suppression function for one engine and essential avionics systems).

Which aircraft AD 2011-04-08 applies to

MakesLearjet

Models45

Serial-conditional — narrows to serials 45-2001–45-2114, 45-2116–45-2120, 45-2122–45-2122, 45-2125–45-2125, 45-2126–45-2126, 45-005–45-380, 45-382–45-391, 45-393–45-396, 45-398–45-398, 45-400–45-400, 45-401–45-401, 45-403–45-403.

Whether AD 2011-04-08 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 2011-04-08 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.

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.