the factory floor to reveal a world boeing keeps secret. [ ♪ music ♪ ] >>> january 16th, 2013 - takamatsurand new boeing 787 dreamliner makes an emergency landing. passengers knew the plane was in trouble. the blue box was one of the dreamliner two lithium-ion batteries, the most powerful ever permitted on an aircraft. >> it's a latest in a string of embarrassments for boeing 787's state the art aircraft. >> nine days earlier, a battery catching fire. >> japanese carriers, nippon airliners, grounded their fleet of 787s. >> japan naa was the first to fly the dreamliner, and are now the first to ground flights. within 24 hours the u.s. safety regulator, the federal aviation administration #. >> all 50 of the boeing 787 dreamliner have been grounded. >> the rest of the world followed. know boeing fleet had been forced from service. on january 17, 2013, the dream was over. i'm will jordan, for a year my team and i have been investigating the dreamliner, it's the boeing company's bet on the future, a plane created to save fuel, offer comfort and increase profits built in a new way, designed an