In May they went back to Kitty Hawk with their 1905 Flyer to practice for their contracted demonstration flights. Their privacy was lost when several correspondents arrived on the scene. The brothers contracts required them to fly with a passenger, so they modified the 1905 Flyer by installing two upright seats with dual control levers. Charlie Furnas, a mechanic from Dayton, became the first fixed-wing aircraft passenger on separate flights with both brothers on 14 May 1908. Later, Wilbur overcontrolled the front elevator and crashed into the sand at about . He emerged with bruises and hurt ribs, but the accident ended the practice flights.