HE STATED THAT AS HE WAS OPERATING THE CONTINUOUS MINER IN RETREAT MINING, A PIECE OF DRAW ROCK FELL OUT OF THE MINE ROOF FROM BETWEEN BOLTS AND STRUCK HIM ON THE RIGHT SHOULDER AND BACK. HE STARTED MISSING WORK ON 10-07-03 AND WAS DIAGNOSED AS HAVING A FRACTURE TO 1 RIB. THIS OCCURRED ON THE 002-0 SECTION, 2 SOUTH PANEL AT THE #24 CROSSCUT.