Is AD 2017-28378 a recurring Airworthiness Directive?

No — AD 2017-28378 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2017-28378 apply to?

AD 2017-28378 applies to Boeing — models 767-200, 767-300, 767-400ER, 767. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2017-28378

one-time

AD 2017-28378 · 2018-01-03 · airframe

Airworthiness Directives; The Boeing Company Airplanes

What this AD requires

We are superseding Airworthiness Directive (AD) 2017-02-03, which applied to certain The Boeing Company Model 767-200, -300, and - 400ER series airplanes. AD 2017-02-03 required inspection of the plastic potable water coupling, and corrective actions if necessary; installation of new spray shrouds; and inspection of previously installed spray shields, and related investigative and corrective actions if necessary. This AD adds airplanes to the applicability and, for certain airplanes, requires hose assembly removals and installations. This AD was prompted by a report of a malfunction of the engine indication and crew alerting system (EICAS) during flight. We are issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2017-28378 applies to

MakesBoeing

Models767-200, 767-300, 767-400ER, 767

Applicability as identified in Boeing Alert Service Bulletin 767-38A0073, Revision 3, dated September 8, 2016.

Whether AD 2017-28378 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

Supersession

Supersedes AD 2017-02-03.

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 2017-28378 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.