aviation accident: Bell 206L-3 near SHERIDAN (1996-09-04)
Probable cause: the pilot's improper in-flight planning/decision, concerning maneuvers to position the helicopter for aerial application; and inadvertent loss of tail rotor effectiveness, which resulted in loss of directional control and subsequent collision with the terrain. Factors relating to the accident include unfavorable weather conditions (high wind, gusts, turbulence, smoke, and high density altitude); the pilot's lack of recent experience in type of operation, and the lack of suitable terrain for a safe autorotation.