Dreamliner probe widens after excess battery voltage ruled out
WASHINGTON (Reuters) – U. S. safety investigators on Sunday ruled out excess voltage as the cause of a battery fire this month on a Boeing Co 787 Dreamliner jet operated by Japan Airlines Co (JAL) and said they were expanding the probe to look at the battery’s charger and the jet’s auxiliary power unit. Last week, governments across the world grounded the Dreamliner while Boeing halted deliveries after a problem with a lithium-ion battery on a second 787 plane, flown by All Nippon Airways Co (ANA), forced the aircraft to make an emergency landing in western Japan. . . .
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