EE SLIPPED ON PUSH BEAM AND TWISTED HIS BACK. HEFELL HITTING THE GROUND, LANDING ON HIS FEET, HIS BACK HIT THE PUSH BEAM CAUSING INJURY TO THE LOWER BACK. THE EE FIRST SOUGHT MEDICAL ATTENTIO N ON 9-5-02, EXPERIENCING NUMBNESS IN HIS LEG. HIS FIRST LOST TIME STARTED ON 5-13-02.