A lithium ion battery on the All Nippon Airways Boeing 787 that made an emergency landing this week was badly burned, Japanese investigators said. The ANA 787 battery was damaged in a manner similar to the battery that is believed to have started a fire last week on a Japan Airlines 787 in Boston. Hideyo Kosugi, an investigator with the Japanese government who has examined the burned ANA 787 battery, told reporters Friday that “voltage exceeding the design limit” likely ...

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