Japan Airlines Co Ltd said it temporarily grounded one of its Boeing 787 Dreamliners at Tokyo's Narita International Airport on Tuesday after white smoke was spotted outside the plane and a battery cell showed clear signs of leaking.The incident raised fresh concerns about the 787's safety and reliability almost exactly one year after the global Dreamliner fleet was grounded by regulators following the overheating of two such batteries, although Boeing said design changes made as a result had worked as planned.Boeing Co said it was "aware of the 787 issue that occurred Tuesday afternoon at Narita, which appears to have involved the venting of a single battery cell." Venting is the process of fumes and heat being channeled outside the battery casing and the aircraft when the battery overheats.The issue occurred during scheduled maintenance activities with no passengers on board," said Boeing. "The improvements made to the 787 battery system last year appear to have worked as designed."
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Gravity always wins!