Incident Overview
While in cruise flight, the pilot observed smoke entering the cockpit and initiated a diversion to an airport. As the diversion progressed, the smoke caused the pilot to suffer a burning sensation in the eyes and nose, a headache, and dizziness.
Landing and Runway Overrun
During the landing, the aircraft touched down at a faster-than-normal speed, approximately 800 to 900 feet beyond the approach end of the 2,501-foot-long runway. The airplane subsequently overran the runway and struck a fence.
Post-Accident Examination
An examination of the wreckage revealed that the plastic housing and associated wiring on the battery box solenoid relay had melted.