Is AD 2014-23-12 a recurring Airworthiness Directive?

No — AD 2014-23-12 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2014-23-12 apply to?

AD 2014-23-12 applies to Boeing — models 787-8, 787. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2014-23-12

one-time

Official AD 2014-23-12 · FR doc 2014-27359 · 2014-11-26 · 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 airplanes. This AD was prompted by a report indicating that, on a different Boeing airplane model, there was an oxygen-fed fire, which caused extensive damage to the flight deck. This AD requires replacing the low-pressure oxygen hoses with non- conductive hoses in the crew oxygen system. We are issuing this AD to prevent inadvertent electrical current from passing through an internal, anti-collapse spring of the low pressure oxygen hose, which can cause the low-pressure oxygen hose to melt or burn, leading to an oxygen-fed fire and/or smoke beneath the flight deck in the forward electronics equipment bay.

Which aircraft AD 2014-23-12 applies to

MakesBoeing

Models787-8, 787

Applicability as identified in Boeing Alert Service Bulletin B787-81205-SB350001-00, Issue 001, dated August 22, 2013.

Whether AD 2014-23-12 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 2014-23-12 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.