HE WAS INJURED WHEN HIS HEAD CAME IN CONTACT WITH THE MINE ROOF WHILE OPERATING A SCOOP ON THE OO1 SECTION; HE STATED HE FELT A NUMBNESS & TINGLING SENSATION THE NEXT MORNING. HE WENT TO ER WHERE A CAT SCAN WAS PERFORMED; RESULTS WERE NEGATIVE. HE RETURNED TO WORK THE FOLLOWING DAY