What happened
On January 16, 2013, at approximately 8:26 local time, an All Nippon Airways Boeing 787-8, operating as flight 692, performed an emergency descent and diverted to Takamatsu Airport (TAK) in Takamatsu, Japan. The aircraft, registration JA804A, was traveling from Yamaguchi Ube Airport (UBJ) to Haneda International Airport (HND) when the crew reported a battery overheat indication and an odor within the cockpit.
After landing at Takamatsu, the crew observed smoke outside the windshield. An air traffic controller also confirmed smoke was emanating from the forward fuselage. Following this observation, an emergency evacuation was carried out on taxiway 4. Of the 137 passengers and crewmembers on board, 4 minor injuries were reported; there were 0 fatalities.