Incident Overview
A pilot reported that during the flare to land, a 'click' was heard as the throttle was moved to the idle position, but engine power did not decrease. The throttle felt very loose and appeared disconnected from the engine. The engine then went to full power, and the turbocharger overboost light illuminated. With an airspeed of 120 knots, the pilot aborted the landing.
Maneuvering and Forced Landing
While attempting to maneuver the aircraft for landing, the engine power fluctuated, first going to a mid-power range and then surging to a higher range. The pilot was forced to execute an off-airport landing. Subsequently, the aircraft collided with a fence and light poles, and a fire erupted, which destroyed the plane.
Examination Findings
An examination revealed that the throttle cable had failed due to high cycle fatigue. This failure resulted in an uncontrolled engine condition, preventing normal power management and leading to the accident sequence.