Is AD 99-33444 a recurring Airworthiness Directive?

No — AD 99-33444 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 99-33444 apply to?

AD 99-33444 applies to Mcdonnell Douglas — models MD-88. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 99-33444

one-time

AD 99-33444 · 1999-12-27 · airframe

Airworthiness Directives; McDonnell Douglas Model DC-9-80 Series Airplanes and Model MD-88 Airplanes

What this AD requires

This document corrects information in an existing airworthiness directive (AD) that applies to certain McDonnell Douglas Model DC-9-80 series airplanes and Model MD-88 airplanes. That AD currently requires a one-time visual inspection to determine whether self-aligning nuts are installed at certain locations of the aft pressure bulkhead tee; and corrective actions, if necessary. This document corrects a typographical error in a service bulletin reference. This correction is necessary to ensure that the appropriate service information is used to accomplish the AD.

Which aircraft AD 99-33444 applies to

MakesMcdonnell Douglas

ModelsMD-88

certain

Whether AD 99-33444 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 99-33444 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.