INVESTIGATING GROUP DETERMINED THERE WAS AN EQUIP. FAILURE OF CONTACT BROKE IN THE CONTROLS OF THE 10 TON HOIST CRANE THAT WAS USED TO HOLD BARREL CONTAINING BALLS - USED TO CHARGE #1 RAW MILL - AS THE CRANE MOVED SOUTH IT DRUG THE CABLE THAT HE WAS TIED TO OFF TOO - PULLING HIM OFF FROM TOP OF #1 RAW MILL.