Is AD 2012-08-13 a recurring Airworthiness Directive?

No — AD 2012-08-13 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2012-08-13 apply to?

AD 2012-08-13 applies to Boeing — models 777-200, 777-300, 777. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2012-08-13

one-time

Official AD 2012-08-13 · FR doc 2012-9476 · 2012-04-24 · 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 777-200 and -300 series airplanes. This AD was prompted by reports of two failures of the single-tabbed bracket on the rudder. This AD requires replacing certain single-tabbed bonding brackets in the airplane empennage with two-tabbed bonding brackets. This AD also requires, for certain airplanes, installing new bonding jumpers, and measuring the resistance of the modified installation to verify resistance is within specified limits. We are issuing this AD to prevent failure of the bonding jumper bracket, which could result in loss of lightning protection ground path, which could lead to increased lightning-induced currents and subsequent damage to composite structures, hydraulic tubes, and actuator control electronics. In the event of a lightning strike, loss of lightning ground protection could result in the loss of control of the airplane.

Which aircraft AD 2012-08-13 applies to

MakesBoeing

Models777-200, 777-300, 777

Applies to airplanes as identified in Boeing Service Bulletin 777-55A0014, Revision 1, dated April 1, 2010.

Whether AD 2012-08-13 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 2012-08-13 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.