Airworthiness Directive · Amendment 39-9783 · Boeing Model 767 Series Airplanes
Boeing Model 767 Series Airplanes
Superseded. A later AD replaced this one: AD 2002-01-13, AD 2002-08-07. Comply with the one in force.
Model 767 series airplanes having line numbers 001 through 605 inclusive, on which the terminating action required by paragraph (e) of this AD has not been accomplished; certificated in any category.
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Boeing 767 series airplanes, that currently requires inspections and various follow-on actions to detect cracking and corrosion of the aft trunnion of the outer cylinder of the main landing gear (MLG). That action also provides for the optional termination of the inspections by repairing the outer cylinder and installing new aft trunnion bushings. That AD was prompted by reports of failure of several MLG due to fracture of the aft trunnion outer cylinder. This amendment requires operators to implement the previously optional terminating action. The actions specified by this AD are intended to prevent the collapse of the MLG due to stress corrosion cracking of the aft trunnion of the outer cylinder.
