THE PILOT DID NOT MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE DURING THE LANDING ROLL. FACTORS TO THE ACCIDENT WERE: THE LANDING SURFACE WAS COVERED WITH SLUSH, SNOW WAS FALLING AND OBSCURED THE PILOT'S VISION.

MISJUDGEMENT OF THE PROPER TOUCHDOWN POINT BY THE PILOT, WHICH RESULTED IN AN OVERRUN OF THE LANDING AREA AND COLLISION WITH A POST. THE DOWNHILL TERRAIN CONDITION AND LOCATION OF THE FENCE POST WERE RELATED FACTORS.