EE WAS LOADING A SHUTTLE CAR IN THE FIVE RIGHT XCUT WHEN A PIECE OF ROCK MEASURING (9' LONG X 47"" WIDE X1-3.5' THICK) FELL FROM THE MINE ROOF FROM BETWEEN THE FIRST AND SECOND BOLT OUT FROM TH E RIB STRIKING HIM ON THE LEFT LEG AND ANKLE. A FRACTURE WAS SUSTAINED FROM THIS INJURY.