A Boeing 787 Dreamliner operated by All Nippon Airways (ANA) sits on the tarmac after an emergency landing at Takamatsu Airpirt in Takamatsu, west of Japan, on January 16, 2013. Japan's two biggest airlines on January 16 grounded all their Dreamliners in the most serious blow yet to Boeing's troubled next-generation model after an ANA flight was forced into an emergency landing.