The maiden flight took place on 15 December 2009 and flight tests were completed in mid-2011.
The maiden flight took place on 15 December 2009 and [M]flight tests were completed in mid-2011[/M].[SEP]The maiden flight took place on 15 December 2009 and [M]flight tests were completed[/M] in mid-2011.[SEP][M]The maiden flight took place on 15 December 2009[/M] and flight tests were completed in mid-2011.