SYDNEY, Dhu-AlQa'dah 24, 1437, Aug 27, 2016, SPA -- An Australian teenager made history on Saturday by becoming the youngest person to complete a solo circumnavigation of the world in a single engine aircraft, Reuters reported. Lachlan Smart, from Queensland, touched down at Maroochydore Airport on the Sunshine Coast, where he had first taken off from on July 24. At 18 years, 7 months and 21 days, Smar is a year younger than the previous record holder, American Matt Guthmiller. "What a welcome," Smart said after landing to cheers from supporters. "To actually be here, having flown around the world, for over 24,000 nautical miles is just a great relief." The teenager stopped in 24 locations and 15 countries during his seven-week trip. He said the weather and communicating with foreign air traffic controllers were his biggest challenges. --SPA 11:00 LOCAL TIME 08:00 GMT www.spa.gov.sa/w