The Japan Transport Safety Board (JTSB) is broadening its ongoing investigation into the cause of the Boeing 787 battery problem to include support system components after finding no evidence of issues with the batterymaker, G S Yuasa. As with the U.S. National Transport Safety Board (NTSB) inquiry into the battery fire on board a Japan Airlines 787 at Boston on Jan. 7, the JTSB probe into the issue, which struck an All Nippon Airways-operated 787 the following week, appears to be no ...


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