TOKYO — A lithium ion battery on a Boeing 787 that overheated during an All Nippon Airways flight earlier this month, prompting an emergency landing, was not overcharged, Japan’s transport safety agency said Wednesday.
Japan Transport Safety Board chairman Norihiro Goto told reporters the flight’s data recorder showed the main battery, used to power many electrical systems on the jet, was not overcharged, contradicting an earlier finding by the agency.
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