THE EMPLOYEE HAD BEEN HELPING TO REMOVE A ROCK OFF OF THE CONTINUOUS MINING MACHINE. AFTER GETTING THE ROCK INTO THE CONVEYOR PAN THE EMPLOYEE POSITIONED HIMSELF APPROXIMATELY 7 FT AWAY IN A C ROSSCUT. AT THIS TIME THE MINER OPERATOR LOWERED THE HEAD OF THE MINER DOWN AGAINST THE ROCK TO BREAK UT CAUSING A PIECE OF THE ROCK TO FLIP OUT OF THE PAN ONTO EE'S LEFT LEG CAUSING FRACTURE