Cessna Citation 750, Doncaster, UK, Dec. 9, 2010–As the twinjet taxied on the runway at Robin Hood Doncaster Sheffield Airport at the completion of a flight from London Luton Airport, its starboard main gear leg collapsed, forcing the airport to close for most of the day. According to an airport spokesman, the Citation X came to a halt on the western side of the runway with the starboard wing touching the ground. The two crewmembers on board were uninjured.