EMPLOYEE WAS WALKING UP STEPS TO STORAGE TRAILER AT MAIN PLANT. GOING FROM 1ST TO THE 2ND STEP HIS FOOT SLIPPED OFF 1ST STEP CAUSING HIM TO FALL FORWARD LANDING ON HIS RIGHT ARM & HAND RESULTI NG INJURY A STRESS FRACTURE OF THE BONE BETWEEN INDEX KNUCKLE AND THUMB OF RIGHT HAND. DR PLACED A REMOVABLE SPLINT ON RIGHT HAND.