Is AD 2014-05-23 a recurring Airworthiness Directive?

No — AD 2014-05-23 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2014-05-23 apply to?

AD 2014-05-23 applies to Bombardier — models BD-100-1A10, BD-100. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2014-05-23

one-time

Official AD 2014-05-23 · FR doc 2014-04822 · 2014-03-11 · airframe

Airworthiness Directives; Bombardier, Inc. Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model BD-100-1A10 (Challenger 300) airplanes. This AD was prompted by multiple reports of erratic electrical status indications on the push button annunciators and the engine instrument and crew alerting system. Certain of those reported incidents resulted in the airplane experiencing a momentary loss of electrical power and loss of flight displays. This AD requires modification of the direct current power centers. We are issuing this AD to prevent loss of electrical power, which could result in the loss of flight displays and reduced controllability of the airplane.

Which aircraft AD 2014-05-23 applies to

MakesBombardier

ModelsBD-100-1A10, BD-100

Serial-conditional — narrows to serials 20003–?.

Also known as Challenger 300; applies to serial numbers 20003 and subsequent.

Whether AD 2014-05-23 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 2014-05-23 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.