Incident Overview
During the takeoff roll, the pilot noticed the airspeed indicator was not functioning. By the time the problem was recognized, the aircraft had advanced too far down the runway to safely abort the takeoff. The pilot elected to continue the takeoff and flew for approximately 1.2 hours before returning for landing.
Approach and Landing
The first approach was high and fast, prompting the pilot to perform a go-around. During the second approach, the aircraft touched down about halfway along the 3,415-foot runway. The pilot applied full brakes, but the aircraft was traveling too fast and continued off the departure end of the runway. It subsequently encountered rough terrain and sustained damage.
Investigation Findings
Post-accident examination of the aircraft revealed that the pitot tube was blocked by sediment. This blockage rendered the airspeed indicator inoperative.