EE WAS DOING MAINTENANCE WORK ON A CONTINUOUS MINER ON THE 001-0 SECTION WHEN A PIECE OF SANDSTONE FELL FROM THE MINE ROOF. ROCK STRUCK EE PINNING HIM IN A CROUCHED POSITION MOMENTARILY UNTIL FELLOW WORKERS COULD REMOVE THE ROCK. EE SUSTAINED A FRACTURE TO BOTH THE FIBULA AND TIBIA OF THE RIGHT LOWER LEG.