Is AD 2012-08-08 a recurring Airworthiness Directive?

No — AD 2012-08-08 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2012-08-08 apply to?

AD 2012-08-08 applies to Learjet — models 45. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2012-08-08

one-time

Official AD 2012-08-08 · FR doc 2012-9393 · 2012-04-24 · airframe

Airworthiness Directives; Learjet Inc.

What this AD requires

We are adopting a new airworthiness directive (AD) for all Learjet Inc., Model 45 airplanes. This AD was prompted by changes to the Airworthiness Limitations Section (ALS) of the maintenance manual, which adds life-limits, revises life-limits, or adds inspections not previously identified. This AD requires revising the maintenance program to include new or more restrictive life-limits and inspections. We are issuing this AD to limit exposure of flight critical components to corrosion, cracking, or failure due to life-limits, which if not corrected, could result in loss of roll control, fatigue cracking, or loss of structural components.

Which aircraft AD 2012-08-08 applies to

MakesLearjet

Models45

Whether AD 2012-08-08 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 2012-08-08 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.