Airworthiness Directive 97-18502
one-timeAirworthiness Directives; Boeing Model 737, 747, 757, and 767 Series Airplanes
What this AD requires
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Boeing Model 737, 747, 757, and 767 series airplanes. This action 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 is prompted by reports indicating that a pilot's seat slid from the forward position to the aft-most position during acceleration and take-off of the airplane due to misalignment of the seat tracks. 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 97-18502 applies to
Whether AD 97-18502 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:
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.