EE HAD STEPPED OFF A JEEP TO THROW A TRACK SWITCH AT 18 PASSWAY ON THE MAIN NORTH TRACK. HE HIT HIS HEAD ON WIRE SCREEN THAT WAS BOLTED TO THE ROOF. A SHARP EDGE OF THE WIRE SCREEN CUT HIS LEF T EAR. SUTURES WERE REQUIRED TO CLOSE THE LACERAATION. THE WAS NO DAMAGE TO ANY EQUIPMENT OR ANY IMPAIRMENT TO THE OPERATOR. THERE WERE NOT ANY OTHER FALTORS INVOLVED.