Action
Notice of proposed rulemaking (NPRM).
Summary
We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 767-300 and 767-300F series airplanes. This proposed AD was prompted by reports of malfunctions in the flight deck display units resulting in blanking, blurring, or loss of color on the display. This proposed AD would require modification and installation of components in the main equipment center. For certain other airplanes this proposed AD would require modification, replacement, and installation of flight deck air relief system (FDARS) components. We are proposing this AD to prevent malfunctions of the flight deck display units, which could affect the ability of the flightcrew to read the displays for airplane attitude, altitude, or airspeed, and consequently reduce the ability of the flightcrew to maintain control of the airplane.