Doylestown

Following a normal landing, the pilot felt no wheel braking action on the left wheel, and the brake pedal went to the floor. The pilot attempted to maintain directional control; however, the airplane departed the right side of the runway and traveled into the grass. The landing gear collapsed, and the airplane came to a stop, sustaining structural damage to the left wing spar. Postaccident examination confirmed that the left brake was inoperative and revealed a small hydraulic fluid leak at the shaft of the parking brake valve in the pressurized section of the cabin. Air likely entered the brake line at the area of the leak while the cabin was pressurized, rendering the left brake inoperative.

The airplane was destroyed when it collided with terrain shortly after departure. Two witnesses to the accident who saw the accident airplane lift off from the runway described the flight path as erratic in nature with random movement in all three axis, pitch, roll and yaw. The witnesses did not see the actual impact. Evidence shows that the upper half of the main entry clamshell door was not closed at impact. Radio transmissions from the accident airplane while in flight show a elevated voice level indicative of stress as the pic attempted to maintain control the airplane during pitch and roll excursions. The radio transmissions were unintelligible. The tower had cleared the aircraft to land on any runway. The pilot, sole on board, was killed.