THE EE WAS LOADING SUPPLIES ON ROOF BOLT MACHINE. EE WAS CARRYING A BUNDLE OF PLATES& TRIPPED ONTHE BOLTER CABLE. BEFORE HE FELL HE TOSSED THE PLATES AWAY FROM HIS BODY. HE LANDED ON HIS W-65 THAT WAS STRAPPED ON HIS BELT. X-RAY SHOWED A CRACKED RIB & BRUISES TO LEFT SIDE.