EMPLOYEE WAS CARRYING A PIECE OF GRATING (METAL) WITH ANOTHER EMPLOYEE WHEN HIS FOOT SLIPPED BETWEEN TWO OTHER SECTIONS OF GRATING. THE EMPLOYEE SLIPPED TWISTING HIS BACK. THE CONDITION OF THE EMPLOYEES BACK CONTINUED TO CAUSE HIM PAIN, SO HE HAD BACK SURGERY ON FEBRUARY 18, 2003. FEBRUARY 18TH WAS THE FIRST DAY THE EMPLOYEE LOST ANY TIME FOR THIS ACCIDENT.