INJURED WAS WALKING DOWN INTO THE TUNNEL TO GREASE MAG PUMP WHEN HIS RIGHT FOOT SLIPPED, CAUSING HIM TO TURN HIS RIGHT KNEE. HE WAS SEEN BY A PHYSICIAN ON 5/10/04. AN MRI WAS PERFORMED ON 5/12/04 AND CAME BACK POSITIVE. SURGERY WILL BE PERFORMED DURING HIS REGULAR VACATION SHUTDOWN TIME.