WHILE WALKING UP THE BELT ENTRY TO THE SECTION, A PIECE OF DRAW ROCK FELL OUT FROM BETWEEN THE RIB AND THE SECOND ROW OF BOLTS STRIKING EE ON THE HEAD. HE WAS TAKEN TO THE HOSPITAL WHERE HE WA S TREATED AND RELEASED. HE WORKED UNTIL 9-25-02 WHEN HE DEVELOPED A HEADACHE AND NAUSEA. HE WAS THEN DIAGNOSED WITH A CONCUSSION.