Struck by rolling or sliding object
WHILE PREPARING TO ATTACH ROCKDUST HOSE TO POD DUSTER, THE DUSTER WAS STRUCK BY 3 SUPPLY CARS WHICH HAD BROKEN LOOSE FROM THE SLOPE CAR AT THE TOP OF THE SLOPE. CARS STRUCK THE DUSTER & THE VI CTIM WAS FATALY INJURED. THE CARS TRAVELED APPROXIMATELY 1700 FT. BEFORE STRIKING THE ROCKDUSTER. CAUSE OF THE CARS BREAKING LOOSE IS STILL UNDETERMINED.