Is AD 2017-10-16 a recurring Airworthiness Directive?

No — AD 2017-10-16 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2017-10-16 apply to?

AD 2017-10-16 applies to Boeing — models 787-8, 787-9, 787. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2017-10-16

one-time

Official AD 2017-10-16 · FR doc 2017-10283 · 2017-05-25 · 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 787-8 and 787-9 airplanes. This AD was prompted by a report indicating that a portion of the sealant above the engine pylon between the wing skin and the vapor barrier might have been omitted. This AD requires an inspection for missing sealant in the seam on the outside and inside of the engine struts, and corrective actions if necessary. We are issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2017-10-16 applies to

MakesBoeing

Models787-8, 787-9, 787

Applies to airplanes as identified in Boeing Alert Service Bulletin B787-81205-SB570029-00, Issue 001, dated February 23, 2016.

Whether AD 2017-10-16 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 2017-10-16 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.