What happened
During the takeoff roll, the pilot noted that the runway surface felt hard but was covered with wet snow. While a passenger observed no visible snow accumulation on the aircraft's surface immediately prior to departure, the pilot reported that the initial portion of the takeoff run felt normal.
After passing the go/no-go decision point, the pilot realized the aircraft was not accelerating as expected. Despite this realization, the takeoff attempt continued. The aircraft was unable to achieve necessary acceleration or gain altitude, ultimately resulting in a crash off the end of the runway. No injuries were reported.
The investigation
During the takeoff sequence, the pilot did not monitor the engine instruments, though he noted that the engine sound remained normal throughout the event. A subsequent examination and an engine run-up were performed, both of which demonstrated normal operation of the powerplant.