EE WAS OPERATING A ROOF BOLTING MACHINE. HE WAS TIGHTENING A ROOF BOLT INTO THE TOP. STONE FELL FROM TOP HITTING HIM ON THE SIDE OF HIS HEAD LACERATING HIS EAR. THERE WAS DAMAGE OR IMPAIRMENT TO THE MINING OPERATION OR THE EQUIPMENT. THE INJURY DID NOT INVOLVE JOB SKILLS, PROFICIENCY, TRAINING, ATTITUDE, PROTECTIVE I8TMES OR PROTECTIVE DEVICES.