Is AD 2016-19-12 a recurring Airworthiness Directive?

No — AD 2016-19-12 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2016-19-12 apply to?

AD 2016-19-12 applies to Boeing — models 747-400, 747-400D, 747-400F, 747. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2016-19-12

one-time

Official AD 2016-19-12 · FR doc 2016-22707 · 2016-10-07 · 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 747-400, 747-400D, and 747-400F series airplanes. This AD was prompted by a determination that a certain fastener type in the fuel tank walls has insufficient bond to the structure, and an electrical wiring short could cause arcing to occur at the ends of fasteners in the fuel tanks. This AD requires the installation of new clamps and polytetrafluoroethylene (TFE) sleeves on the wire bundles of the front spars and rear spars of the wings. This AD also requires inspecting the existing TFE sleeves under the wire bundle clamps for correct installation, and replacement if necessary. We are issuing this AD to prevent potential ignition sources in the fuel tank in the event of a lightning strike or high-powered short circuit, and consequent fire or explosion.

Which aircraft AD 2016-19-12 applies to

MakesBoeing

Models747-400, 747-400D, 747-400F, 747

As identified in Boeing Special Attention Service Bulletin 747-28-2324, Revision 1, dated July 27, 2015.

Whether AD 2016-19-12 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 2016-19-12 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.