THE JOB TASK WAS TO MOVE A ROOF BOLT MACHINE. AFTER THE MACHINE MOVED OVER THE MINER CABLE, THE EE BENT OVER TO PICK UP THE CROSS-OVER. AT THIS TIME A ROCK APPROX. 10 IN X 10 IN X 1 1/2 INCHES THICK FELL FROM THE TOP STRIKING THE EE IN THE LOWER BACK.