Airworthiness Directive · Amendment 39-10123 · The Boeing Company Airplanes
The Boeing Company Airplanes
This AD applies to The Boeing Company 737-100 Series, 737-200 Series, 737-200C Series, 737-300 Series, 737-400 Series, 737-500 Series, 737-600 Series, 737-700 Series, 737-800 Series.
The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Boeing Model 737 series airplanes, that currently requires an inspection to determine whether the bearings of the tracklock bracket assemblies of the pilot and co-pilot seats are secure, modification of loose bearings, and marking of the seat identification labels. This AD requires a visual inspection to determine whether the modification and marking of the crew seats were accomplished; and, if not, accomplishment of these actions, which constitutes terminating action for the requirements of this AD. This amendment is prompted by a report indicating that a first officer's crew seat on an in-service airplane failed to lock horizontally. The actions specified in this AD are intended to prevent the captain and first officer crew seats from sliding freely on the track, which could result in uncommanded movement of the seats and reduced controllability of the airplane.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
