Is AD 2012-23-06 a recurring Airworthiness Directive?

No — AD 2012-23-06 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2012-23-06 apply to?

AD 2012-23-06 applies to Boeing — models 777-200, 777-200LR, 777-300, 777-300ER, 777F, 777. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2012-23-06

one-time

Official AD 2012-23-06 · FR doc 2012-27908 · 2012-11-26 · airframe

Airworthiness Directives; The Boeing Company Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 777 airplanes. This AD was prompted by reports of failure of wire support clamps in the forward section of the aft pressure bulkhead. This AD requires a detailed inspection of the clamps on the power feeder cable of the auxiliary power unit (APU) to determine if certain clamps are installed, and related investigative and corrective actions if necessary. We are issuing this AD to prevent failure of the clamp, which could result in wire chafing and potential arcing and consequent fire in section 48 (a flammable fluid leakage zone) or heat damage to the APU power feeder cable, insulation blankets, or pressure bulkhead.

Which aircraft AD 2012-23-06 applies to

MakesBoeing

Models777-200, 777-200LR, 777-300, 777-300ER, 777F, 777

Limited to airplanes identified in Boeing Alert Service Bulletin 777-24A0119, dated November 11, 2011.

Whether AD 2012-23-06 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 2012-23-06 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.