Is AD 2012-12-18 a recurring Airworthiness Directive?

No — AD 2012-12-18 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2012-12-18 apply to?

AD 2012-12-18 applies to Dassault Aviation — models Falcon 7X. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2012-12-18

one-time

Official AD 2012-12-18 · FR doc 2012-15066 · 2012-06-25 · airframe

Airworthiness Directives; Dassault Aviation Airplanes

What this AD requires

We are superseding an existing airworthiness directive (AD) for certain Dassault Aviation Model FALCON 7X airplanes. That AD currently requires revising the Abnormal Procedures and Limitations sections of the Dassault F7X Airplane Flight Manual. This new AD requires a test of the power distribution control units (PDCU) cards and generator control units (GCU) cards to detect faulty components, and if any faulty components are found, replacing any affected PDCU or GCU card. This AD was prompted by a determination that additional actions are necessary to address the identified unsafe condition. We are issuing this AD to detect and correct a leakage failure mode of transient voltage suppression (TVS) diodes used on PDCU cards or GCU cards in the primary power distribution boxes (PPDB), which, in combination with other system failures, could lead to loss of controllability of the airplane.

Which aircraft AD 2012-12-18 applies to

MakesDassault Aviation

ModelsFalcon 7X

All serial numbers except those on which Dassault Aviation Modification M724 is embodied.

Whether AD 2012-12-18 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 2012-12-18 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.