EE WAS USING A CHIPPING GUN TO CLEAN OUT THE BUILDUP ON A VIBRATING GREZZLY WHEN THE HOSE ATTACHED TO THE GUN BLEW OFF, CAUSING EE TO LOSE HIS BALANCE AND HIT HIS KNEE ON THE CHIPPING GUN. EE WAS SEEN BY A PHYSICIAN ON 12-30-02 AND WAS DIAGNOSED WITH A CONTUSION, PLACED ON MODIFIED DUTY.