Incident Overview
During an aborted takeoff, the airplane overran the 4,451-foot-long runway, went down a hill, and struck a fence, according to the official investigation report.
Pilot Account
The pilot reported that during the takeoff roll, the indicated airspeed needle climbed to approximately 60 knots but then stopped increasing. Attempts to dislodge the needle by tapping on the gauge face were futile. The pilot then pulled back the throttles and applied full brakes. The pilot stated that based on existing conditions, the airplane could accelerate from rest to rotation speed and back to rest in less than 3,500 feet.
Examination Findings
Examination of the airplane revealed that the pitot tube was internally obstructed with an insect and mud.
Probable Cause
The probable cause was determined to be the pilot's delay in aborting the takeoff. A factor in the accident was the internal obstruction of the pitot tube.