Yahoo7 News | Boy unconscious after hoverboard accident - Yahoo7 Yahoo7 News The 16-year-old was knocked unconscious while trying out the board and had to be rushed by ambulance to a waiting rescue helicopter at Elanora Heights on Sydney's northern beaches. "He began to revive just as the specialist CareFlight doctor and ... Boy knocked unconscious after falling off 'hoverboard' in Elanora Heights Boy unconscious after hoverboard accident NSW teen unconscious after nasty hoverboard accident |