The All Nippon Airways (ANA) Boeing 787 lithium ion battery that failed Jan. 16 exhibits signs of “thermal runaway,” according to Japanese investigators. Additionally, Boeing is asking US FAA to allow it to conduct 787 test flights. The Japan Transport Safety Board (JTSB) told reporters that the badly burned ANA 787 battery experienced an “uncontrollable high temperature” associated with thermal runaway, according to multiple reports from Tokyo. The US National ...

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