Is AD 2012-22-02 a recurring Airworthiness Directive?

No — AD 2012-22-02 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2012-22-02 apply to?

AD 2012-22-02 applies to Boeing — models 747-400, 747-400D, 747-400F, 747. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2012-22-02

one-time

Official AD 2012-22-02 · FR doc 2012-27637 · 2012-11-21 · 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, -400D, and -400F series airplanes. This AD was prompted by reports of crown frame web cracking at left buttock line (LBL) 15.0, station (STA) 320. This AD requires measuring the web at STA 320 and, depending on findings, various inspections for cracks and missing fasteners, web and fastener replacement, and related investigative and corrective actions if necessary. We are issuing this AD to prevent complete fracture of the crown frame assembly, and consequent damage to the skin and in-flight decompression of the airplane.

Which aircraft AD 2012-22-02 applies to

MakesBoeing

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

Applies only to airplanes identified in Boeing Service Bulletin 747-53A2784, Revision 1, dated September 14, 2011 (Effectivity).

Whether AD 2012-22-02 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 2012-22-02 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.