Factbox: Dreamliner Giving Boeing Sleepless Nights
Description:Japan's two leading airlines grounded their fleets of Boeing 787s on Wednesday after one of the Dreamliner passenger jets made an emergency landing, the latest in a series of incidents to heighten safety concerns over a plane many see as the future of commercial aviation. The move is the latest in nearly 18 months of problems that have beset the Dreamliner, which has quickly turned into a nightmare for its creator.(1:21)