Is AD 2013-15-18 a recurring Airworthiness Directive?

Yes — AD 2013-15-18 requires a repetitive inspection every 14 months. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2013-15-18 apply to?

AD 2013-15-18 applies to Lockheed Martin — models L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15, L-1011-385-3, L-1011. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2013-15-18

recurring

Official AD 2013-15-18 · FR doc 2013-20731 · 2013-08-27 · airframe

Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes

What this AD requires

We are superseding an airworthiness directive (AD) for all Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model L-1011 series airplanes. AD 2005-15-01 required repetitive inspections to detect corrosion or fatigue cracking of certain structural elements of the airplane, corrective actions if necessary, and incorporation of certain structural modifications. This new AD reduces certain compliance times for the initial inspection and the repetitive inspection interval for certain airplanes. This AD was prompted by reports of small cracks in additional areas outside those addressed in AD 2005-15-01, prior to the inspection threshold required by the AD 2005-15-01. We are issuing this AD to prevent corrosion or fatigue cracking of certain structural elements, which could result in reduced structural integrity of the airplane.

Repetitive inspection. Re-inspect every 14 months. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2013-15-18 applies to

MakesLockheed Martin

ModelsL-1011-385-1, L-1011-385-1-14, L-1011-385-1-15, L-1011-385-3, L-1011

Whether AD 2013-15-18 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 2013-15-18 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.