File photograph of burnt auxiliary power unit battery removed from Japan Airlines Boeing 787 Dreamliner jet provided by NTSB

 
File photograph of burnt auxiliary power unit battery removed from Japan Airlines Boeing 787 Dreamliner jet provided by NTSB
The burnt auxiliary power unit battery removed from a Japan Airlines Boeing 787 Dreamliner jet is seen in this picture provided by the U.S. National Transportation Safety Board (NTSB) and obtained by Reuters on January 15, 2013. REUTERS/U.S. National Transportation Safety Board/Handout