This Jan. 31, 2013 photo provided by the Japan Transport Safety Board shows two of eight damaged cells in the battery, that overheated on the All Nippon Airways Boeing 787 on Jan. 16 and prompted an emergency landing, during an investigation by U.S. and Japanese aviation safety regulators at its manufacturer GS Yuasa's headquarters in Kyoto, Japan. An investigation into the battery found evidence of the same type of "thermal runaway" seen in a similar incident in Boston, officials said Tuesday, Feb. 5, 2013. (AP Photo/Japan Transport Safety Board) EDITORIAL USE ONLY, NO SALES

Associated Press
This Jan. 31, 2013 photo provided by the Japan Transport Safety Board shows two of eight damaged cells in the battery, that overheated on the All Nippon Airways Boeing 787 on Jan. 16 and prompted an emergency landing, during an investigation by U.S. and Japanese aviation safety regulators at its manufacturer GS Yuasa's headquarters in Kyoto, Japan. An investigation into the battery found evidence of the same type of "thermal runaway" seen in a similar incident in Boston, officials said Tuesday, Feb. 5, 2013. (AP Photo/Japan Transport Safety Board) EDITORIAL USE ONLY, NO SALES
This Jan. 31, 2013 photo provided by the Japan Transport Safety Board shows two of eight damaged cells in the battery, that overheated on the All Nippon Airways Boeing 787 on Jan. 16 and prompted an emergency landing, during an investigation by U.S. and Japanese aviation safety regulators at its manufacturer GS Yuasa's headquarters in Kyoto, Japan. An investigation into the battery found evidence of the same type of "thermal runaway" seen in a similar incident in Boston, officials said Tuesday, Feb. 5, 2013. (AP Photo/Japan Transport Safety Board) EDITORIAL USE ONLY, NO SALES
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