EE STATED HE WAS USING A 5FT PRY BAR TO REMOVE ADEFECTIVE IMPACT ROLLER ON THE BELT LINE. HE PLACED THE BAR IN THE FRAME OF THE ROLLER & APPLIEDDOWN FORCE AS HE DID THE ROLLER TURN OVER, HE LO ST CONTROL OF BAR. THE BAR CAME AROUND WITH THE ROLLER & FRAME & STRUCK HIM IN THE BACK OF THE HEAD & NECK. MRI RAN EE--AWAITING RESULTS