Is AD 2018-02-20 a recurring Airworthiness Directive?

Yes — AD 2018-02-20 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2018-02-20 apply to?

AD 2018-02-20 applies to Boeing — models 777-200, 777-200LR, 777-300, 777-300ER, 777. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2018-02-20

recurring

Official AD 2018-02-20 · FR doc 2018-01807 · 2018-02-09 · 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, -200LR, -300, and -300ER series airplanes. This AD was prompted by reports of corrosion in the aft fuselage. This AD requires a one-time review of the operator's maintenance procedures, repetitive detailed internal and external inspections for corrosion or cracking, and applicable on-condition actions. This AD also includes an optional terminating action for the inspections. We are issuing this AD to address the unsafe condition on these products.

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 2018-02-20 applies to

MakesBoeing

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

Applies to airplanes identified in Boeing Alert Service Bulletin 777-53A0083, dated April 20, 2017.

Whether AD 2018-02-20 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 2018-02-20 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.