A Japan Airlines 787 Dreamliner flying from Boston to Tokyo turned around not long after taking off and is headed back to Boston:
Japan Airlines flight JL7 (B787 Dreamliner Boston-Tokyo) just made a U-turn over Canada http://t.co/EtbHa7TQA8 pic.twitter.com/Yoi5Wl0FDS
— Flightradar24.com (@flightradar24) July 18, 2013
The airline's website says the Boeing jet is returning to the airport "due to aircraft maintenance."
Right now, the plane is in a holding airport, possibly waiting for other traffic to clear out:
JAL 7 is near Boston, but is currently in a holding pattern over the Atlantic. I assume this is to let other heavy traffic pass them. JR
— NYCAviation (@NYCAviation) July 18, 2013
The aircraft could also be dumping fuel, to make landing safer.
We'll update this story once we know more.