EMPLOYEE WAS ADVANCING SHIELDS ON THE LONGWALL FACE. HE HAD HIS HAND ON TOP OF THE HANDRAIL OF THE PANLINE. A PIECE OF STONE FELL FROM THE TOP BETWEEN THE SHIELDS AND HIT THE TOP OF HIS HAND . THERE WAS NO DAMAGE OR IMPAIRMENT TO THE MINING OPERATION. THE INJURY DID NOT INVOLVE ANY ASPECT OF COMPLAINCE WIHT REGS , JOB SKILLS, PROFICIENCY OR ATTITUDE. EMPLOYEES ARE TRAIN IN POSSI