Boeing started to test the 787 on the ground. They found more problems and the plane was delayed even more. Finally on December 15, 2009 the 787 went on its first flight. Boeing began testing the plane in the air. There were more problems, like a failure of one of the Rolls-Royce Trent 1000 engines, and an in flight fire, which delayed the plane even more. Some airlines wanted to be paid back for all the delays. Finally in July 2011, Boeing delivered their first 787 to ANA.