Is AD 2012-10-10 a recurring Airworthiness Directive?

Yes — AD 2012-10-10 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2012-10-10 apply to?

AD 2012-10-10 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 2012-10-10

recurring

Official AD 2012-10-10 · FR doc 2012-12087 · 2012-05-25 · 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 corrosion damage on the outer diameter chrome surface of the horizontal stabilizer pivot pins. Micro-cracks in the chrome plating of the pivot pin, some of which extended into the base metal, were also reported. This condition, if not corrected, could result in a fractured horizontal stabilizer pivot pin. This AD requires replacing the existing horizontal stabilizer pivot pins with new or reworked pivot pins having improved corrosion resistance, doing repetitive inspections after installing the pivot pins, and doing corrective actions if necessary. We are issuing this AD to prevent a fractured horizontal stabilizer pivot pin, which may cause excessive horizontal stabilizer freeplay and structural damage significant enough to result in loss of control of the airplane.

Repetitive inspection. Re-inspect. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2012-10-10 applies to

MakesBoeing

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

Applies only to airplanes identified in Boeing Alert Service Bulletin 777-55A0018, Revision 1, dated March 6, 2012.

Whether AD 2012-10-10 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 2012-10-10 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.