Since launching commercially in 2011, there have been problems with the aircraft, dubbed The Dreamliner, around the world.
On June 23, a Boeing 787 made an emergency landing in Houston after a brake indicator light incorrectly indicated there was an issue.
After the plane landed safely, United Airlines said, "Following standard operating procedures, as a precautionary measure, the flight landed in emergency status."
On June 12, an All Nippon Airways Dreamliner flight was canceled when an engine would not start. On the previous day, a Japan Airlines flight to Singapore returned to Tokyo because of a deicing problem. On June 18, a Denver to Tokyo flight was diverted because of an oil indicator light.