Synopsis
A sightseeing flight intended for bear photography ended in a crash when the pilot ignored a stall warning and attempted an uphill climb in a narrow canyon. All six occupants sustained serious injuries.
Flight Details
The flight was conducted in a narrow canyon where several black bears were spotted. The pilot began making tight, descending turns to allow passengers to take photographs. According to reports, the stall warning horn activated during the maneuvers, but the pilot continued turning. After rolling out of the turn, the aircraft was heading uphill in the valley. The pilot was unable to maintain airspeed while climbing up the valley, leading to a loss of control.
Accident Sequence
The aircraft subsequently crashed and nosed over at the crash site, which was at an elevation of approximately 3,000 feet. The reported temperature at the time was 62° F. All six occupants on board were seriously injured.
Probable Cause
Official findings identified the probable cause as improper preflight planning/preparation, diverted attention, high density altitude, rising terrain, inability to maintain a proper climb rate, and an inadvertent stall/mush. The terrain was mountainous and hilly, and the pilot's diverted attention contributed to the sequence of events.