EE was operating a shuttle car in the #3 entry of the 002-0 mmu. He was hauling a load of coal to the feeder when a piece of draw rock, approx. 24"" wide, 41"" long & 3"" thick fell from between the bolts and struck him on the head, shoulder and chest. He was transported to the medical center and admitted for observation. Accident occurred in the first crosscut outby the face.