THE EMPLOYEE WAS WORKING IN THE REAR AXLE OF A 190 TON HAUL TRUCK. HE FELL BACKWARD OUT OF THE TRUCK AND STRUCK THE BACK OF HIS HEAD. HE WAS TAKEN TO E.R. AND TREATED FOR ABRASIONS ON THE BA CK OF HIS HEAD. WHEN HE RETURNED FOR HIS RECHECK, HE RECEIVED ANTI-INFLAMMATORY MEDICATION FOR HIS BACK.