What happened
The pilot departed an airport located in the bottom of the Columbia River Gorge for a night visual flight rules (VFR) flight destined for Spokane, Washington. Approximately five to six minutes after takeoff, the aircraft collided with terrain on the lip of a canyon wall. The pilot had reported experiencing moderate to severe turbulence near the bluff line both before and after the crash. Upon impact, the aircraft was in a steep nose-down attitude and subsequently exploded.
Findings
The primary factors contributing to this accident were the moderate to severe turbulence encountered near the bluff line and the resulting loss of control or spatial disorientation that led to the terrain collision. The night VFR flight conditions likely compounded the difficulty of navigating through turbulent air in a confined canyon environment.
Safety message
Pilots operating in mountainous or canyon terrain, particularly at night, must be aware of the potential for severe turbulence near bluff lines and ridges. Adequate clearance from terrain is critical when visibility is limited and atmospheric conditions are unstable.