FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

The primary function of the flap overload valve is to prevent the flaps from being lowered at airspeeds which would impose excessive structural loads. This safety mechanism ensures that the flaps are operated within safe limits to protect the structural integrity of the aircraft. Flaps are crucial aerodynamic devices that help in controlling the lift and drag of the aircraft during takeoff and landing. By preventing the flaps from being lowered at unsafe speeds, the flap overload valve helps in maintaining the structural safety of the aircraft during critical flight phases.