Is AD 98-2529 a recurring Airworthiness Directive?

No — AD 98-2529 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 98-2529 apply to?

AD 98-2529 applies to Boeing — models 747, 757, 767. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 98-2529

one-time

AD 98-2529 · 1998-02-04 · airframe

Airworthiness Directives; Boeing Model 737, 747, 757, and 767 Series Airplanes

What this AD requires

This amendment supersedes an existing airworthiness directive (AD), applicable to certain Boeing Model 737, 747, 757, and 767 series airplanes, that currently requires a one-time operational test of the pilots' seat locks and the seat tracks to ensure that the seats lock in position and the seat tracks are aligned correctly; and re-alignment of the seat tracks, if necessary. This amendment revises the applicability of the existing AD. The actions specified in this AD are intended to prevent uncommanded movement of the pilots' seats during acceleration and take-off of the airplane, and consequent reduced controllability of the airplane.

Which aircraft AD 98-2529 applies to

MakesBoeing

Models747, 757, 767

certain

Whether AD 98-2529 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 98-2529 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.