NTSB Accidents

Probable Cause: A loss of engine power that resulted from improper fuel system maintenance and the subsequent fuel starvation due to the leaking fuel pump outlet fuel line.

Probable Cause: Damage to the landing gear selector switch wire bundle which resulted in an inadvertent retraction of the landing gear during the takeoff roll.

Probable Cause: A partial loss of engine power due to a leak in the fuel control unit bellows, which resulted in the fuel valve moving to minimum fuel flow.

Probable Cause: The pilot’s inadequate preflight inspection and fuel planning, which resulted in a total loss of engine power due to fuel exhaustion and a subsequent forced landing in tree-covered terrain.

Probable Cause: The pilot’s failure to properly configure the flaps, which resulted in a loss of directional control during takeoff.

Probable Cause: The failure of the engine mount under normal operating loads due to the fracture of a vertical tube that was weakened by corrosion and fatigue of the internal surfaces.

Probable Cause: The pilot’s loss of airplane control while performing an aerobatic maneuver, which resulted in the airplane entering an inverted flat spin at an altitude too low for recovery.

Probable Cause: The pilot’s encounter with wake turbulence, which resulted in substantial damage to the airplane.

Probable Cause: The Yak-50 pilot’s failure to maintain clearance from another airplane while taxiing and maneuvering. Contributing to the accident was the pilot’s inattention due to a distraction inside the cockpit.