Airworthiness Directives; Fokker Model F28 Mark 0100 Series Airplanes

Özet

This amendment adopts a new airworthiness directive (AD), applicable to certain Fokker Model F28 Mark 0100 series airplanes, that requires removal of the actuator from the fuel-ballast transfer valve, and installation of a locking device on the fuel-ballast transfer valve. This amendment is prompted by a report that the fuel-ballast transfer valve on certain airplanes must be modified to ensure the valve is closed at all times. If the transfer valve is open during flight, the fuel supply to the engines may be reduced during cross-feed operation to the extent that fuel starvation could occur. The actions specified by this AD are intended to prevent engine flameout due to fuel starvation.