Is AD 2010-21-13 a recurring Airworthiness Directive?

No — AD 2010-21-13 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2010-21-13 apply to?

AD 2010-21-13 applies to Mcdonnell Douglas — models DC-10-10, DC-10-10F, DC-10-30, DC-10-30F, DC-10-40, DC-10-40F, DC-10. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2010-21-13

one-time

Official AD 2010-21-13 · FR doc 2010-25442 · 2010-10-14 · airframe

Airworthiness Directives; McDonnell Douglas Corporation Model DC-10-10, DC-10-10F, DC-10-30, DC-10-30F (KDC-10), DC-10-40, and DC-10-40F Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires installing a support bracket and coupler on the left and right wing-to-fuselage transition, and metallic overbraid on the left and right leading edge wire assembly. This AD was prompted by fuel system reviews conducted by the manufacturer, as well as reports that the fuel quantity system was affected by lightning-induced transients. We are issuing this AD to prevent lightning-induced transients to the fuel quantity indication system, which could cause voltage levels to go beyond original design levels between fuel tank probes and structure, and become a potential ignition source at the fuel tank, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.

Which aircraft AD 2010-21-13 applies to

MakesMcdonnell Douglas

ModelsDC-10-10, DC-10-10F, DC-10-30, DC-10-30F, DC-10-40, DC-10-40F, DC-10

DC-10-30F (KDC-10) airplanes are included. Applies to airplanes identified in Boeing Service Bulletin DC10-28-262, Revision 1, dated June 9, 2010.

Whether AD 2010-21-13 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 2010-21-13 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.