Is AD 99-8688 a recurring Airworthiness Directive?

No — AD 99-8688 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 99-8688 apply to?

AD 99-8688 applies to Mcdonnell Douglas — models KC-10, MD-11. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 99-8688

one-time

AD 99-8688 · 1999-04-08 · airframe

Airworthiness Directives; McDonnell Douglas Model DC-10 and MD-11 Series Airplanes, and KC-10 (Military) Series Airplanes

What this AD requires

This document corrects erroneous references that appeared in airworthiness directive (AD) 99-06-08 that was published in the Federal Register on March 12, 1999 (64 FR 12249). That AD contained incorrect references to certain paragraphs. This AD is applicable to certain McDonnell Douglas Model DC-10 and MD-11 series airplanes, and KC-10 (military) series airplanes. This AD requires a one-time inspection for blockage of the lubrication holes on the forward trunnion spacer assembly, and a one-time inspection of the forward trunnion bolt on the left and right main landing gear (MLG) to detect discrepancies; and repair, if necessary.

Which aircraft AD 99-8688 applies to

MakesMcdonnell Douglas

ModelsKC-10, MD-11

certain

Whether AD 99-8688 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 99-8688 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.