EE WAS OPERATING A ROOF BOLTING MACHINE. HE WAS ALONGSIDE OF THE MACHINE WHEN A STONE FELL FROM THE ROOF AND STRUCK HIM ON TOP OF HIS HARD HAT AND KNOCKED HIM TO THE MINE FLOOR. HE FRACTURED H IS NOSE AND STRAINED HIS LOWER BACK AND HAD ABRASIONSS ON HIS RIGHT ARM. NO DAMAGE TO MINING OPERATION. THE INJURY DID NOT INVOLVE COMPLIANCE, JOB SKILLS, PROFICIENCY, TRAINING, ATTITUDE, PRO