Summary
The FAA proposes to revise an existing airworthiness directive (AD) that applies to all AvCraft Dornier Model 328-100 airplanes. The existing AD currently requires revising the Airplane Flight Manual (AFM) to provide the flightcrew with additional information regarding procedures to ensure complete pressurization of the hydraulic lines for the flaps. The existing AD also requires, for certain airplanes, modification of the flap actuators of the flight controls. This proposed AD would allow the removal of the AFM revisions after modifying the flap actuators of the flight controls. This proposed AD results from the determination that the AFM revisions are not necessary after modifying the flap actuators of the flight controls. We are proposing this AD to prevent an uncommanded retraction of the flaps during takeoff, which could result in an aborted takeoff and consequent potential for runway overrun.