Is AD 2015-09-05 a recurring Airworthiness Directive?

No — AD 2015-09-05 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2015-09-05 apply to?

AD 2015-09-05 applies to Boeing — models 747-400, 747-400F, 747. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2015-09-05

one-time

Official AD 2015-09-05 · FR doc 2015-10069 · 2015-05-12 · 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 747-400 and 747-400F series airplanes. This AD was prompted by reports of cracking in the main equipment center (MEC) drip shield and exhaust plenum. This AD requires installing a fiberglass reinforcing overcoat on the MEC drip shield. We are issuing this AD to prevent water penetration into the MEC, which could result in an electrical short and potential loss of several functions essential for safe flight.

Which aircraft AD 2015-09-05 applies to

MakesBoeing

Models747-400, 747-400F, 747

Applies to airplanes identified in Boeing Alert Service Bulletin 747-25A3640, dated January 8, 2014.

Whether AD 2015-09-05 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 2015-09-05 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.