Is AD 2012-06-03 a recurring Airworthiness Directive?

No — AD 2012-06-03 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2012-06-03 apply to?

AD 2012-06-03 applies to Bombardier — models BD-100-1A10, BD-100. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2012-06-03

one-time

Official AD 2012-06-03 · FR doc 2012-8041 · 2012-04-05 · airframe

Airworthiness Directives; Bombardier, Inc. Model BD-100-1A10 (Challenger 300) Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for all Bombardier, Inc. Model BD-100-1A10 (Challenger 300) airplanes. This AD was prompted by reports that the horizontal stabilizer trim actuator (HSTA) no-back and the number 1 motor brake assembly (MBA) can both fail dormant. This AD requires revising the airplane maintenance schedule to include new functional tests of the HSTA no-back and HSTA brake system. We are issuing this AD to prevent dormant failure of the HSTA no-back and the number 1 MBA, which along with additional component failure could result in an uncontrollable horizontal stabilizer surface runaway without the ability to retrim, and consequent loss of the airplane.

Which aircraft AD 2012-06-03 applies to

MakesBombardier

ModelsBD-100-1A10, BD-100

Common name: Challenger 300. AD also requires revising operator maintenance documents to add new inspections (compliance required under 14 CFR 91.403(c)); if a prior modification/alteration/repair prevents accomplishing the inspections, the operator must request an alternative method of compliance per paragraph (j).

Whether AD 2012-06-03 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 2012-06-03 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.