An outback misadventure has ended in a high-flying rescue thanks to a chance encounter involving WA billionaire Tim Roberts and his private helicopter. Traveller Bill Kosky and his son found themselves in a perilous situation in remote South Australia after their vehicle became hopelessly bogged in thick mud. The pair were left marooned in the State’s unforgiving far-north for more than 12 hours, with hopes of being rescued fading. However, a stroke of pure luck intervened.