Is AD 2015-23-04 a recurring Airworthiness Directive?

No — AD 2015-23-04 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2015-23-04 apply to?

AD 2015-23-04 applies to General Electric — models 1B, GEnx. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2015-23-04

one-time

Official AD 2015-23-04 · FR doc 2015-28747 · 2015-11-12 · turbine engine

Airworthiness Directives; General Electric Company Turbofan Engines

What this AD requires

We are adopting a new airworthiness directive (AD) for all General Electric Company (GE) GEnx-1B turbofan engine models. This AD was prompted by reports of GEnx-1B engine oil loss. This AD requires removal and replacement of the non-conforming ball valve in the oil filler cap. We are issuing this AD to prevent loss of engine oil, which could lead to failure of one or more engines, loss of thrust control, and damage to the airplane.

Which aircraft AD 2015-23-04 applies to

MakesGeneral Electric

Models1B, GEnx

Part-conditional — 2349M62G01.

Applies to all GEnx-1B engines with oil filler cap P/N 2349M62G01 installed that do NOT contain the markings 'P/M BALL PP,' 'RW,' or '79-0022' after the part number on the oil filler cap scupper.

Whether AD 2015-23-04 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 2015-23-04 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.