The plane , a Mitsubishi MU 2B-25 , completed a 360-degree turn before radar contact was lost . Perry Cox reported that one of his engines was out , and had engine problems . The twin - engine aircraft went down north of the Tulsa Municipal Airport . Cox , an orthopedic surgeon , was the son of Sen. James Cox .
Perry Cox reported that one of his engines was out , and had engine problems . The twin - engine aircraft went down north of the Tulsa Municipal Airport . Cox , an orthopedic surgeon , was the son of Sen. James Cox .