EE WAS LOOSENING BOLTS ON THE MOTOR WHEN HIS RATCHET SLIPPED CAUSING HIM TO FEEL PAIN IN HIS LOWER BACK. HE DID NOT CEASE WORKING UNITL1/2/01 AT WHICH TIME HE WAS INSTRUCTED BY A DR TO REMAI N OFF WORK. NOTE: THIS REPORT IS LATE BECAUSE OF AN OVERSIGHT ON PAPERWORK