Is AD 2017-02-04 a recurring Airworthiness Directive?

No — AD 2017-02-04 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2017-02-04 apply to?

AD 2017-02-04 applies to The Boeing Company — models 747-200B, 747-300, 747-400, 747-400D, 747-400F, 747. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2017-02-04

one-time

Official AD 2017-02-04 · FR doc 2017-01341 · 2017-02-07 · 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 747-200B, 747-300, 747-400, 747-400D, and 747- 400F series airplanes. This AD was prompted by a report of cracking in both the aluminum strut side skin, and corrosion resistant steel (CRES) outer spring beam support fitting. This AD requires inspections, related investigative and corrective actions, and a fastener installation modification. We are issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2017-02-04 applies to

MakesThe Boeing Company

Models747-200B, 747-300, 747-400, 747-400D, 747-400F, 747

Applies only to airplanes equipped with General Electric (GE) CF6-80 series engines or Pratt & Whitney PW4000 series engines, as identified in Boeing Alert Service Bulletin 747-54A2245, Revision 1, dated September 20, 2016.

Whether AD 2017-02-04 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 2017-02-04 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.