EE said EE was working on E9 belt on the north end side of the belt where the cleanup chute is. EE said that EE closed the cleanup chute door that goes down to E1 belt. Right after, a good-sized rock bounced over from the E9 belt. EE picked up the rock and was going to put it down the chute, EE said EE ""closed the door to the clean chute and something above EE hit EE's hand""