Is AD 04-15378 a recurring Airworthiness Directive?

No — AD 04-15378 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 04-15378 apply to?

AD 04-15378 applies to Mcdonnell Douglas Dc-9-82 (Md-82) And Dc-9-83 (Md-83) — models MD-88. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 04-15378

one-time

AD 04-15378 · 2004-07-09 · airframe

Airworthiness Directives; McDonnell Douglas DC-9-82 (MD-82) and DC-9-83 (MD-83) Airplanes; and Model MD-88 Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas DC-9-82 (MD-82) and DC-9-83 (MD-83) airplanes; and Model MD-88 airplanes, that requires inspection of the captain's and first officer's seat track locking pins for insufficient engagement caused by seat track misalignment, and corrective actions if necessary. This action is necessary to prevent uncommanded movement of the captain's and first officer's seats during takeoff and landing, which could result in interference with the operation of the airplane and consequent temporary loss of control of the airplane. This action is intended to address the identified unsafe condition.

Which aircraft AD 04-15378 applies to

MakesMcdonnell Douglas Dc-9-82 (Md-82) And Dc-9-83 (Md-83)

ModelsMD-88

certain

Whether AD 04-15378 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 04-15378 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.