WASHINGTON – U.S. investigators are moving swiftly and making progress in their investigation of a battery fire on a Boeing Co 787 Dreamliner in Boston this month, a spokeswoman for the U.S. National Transportation Safety Booard said on Friday.
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"Our investigators are moving swiftly and we are making progress," spokeswoman Kelly Nantel told Reuters after the U.S. safety board issued a seventh update on the investigation.
All 50 Boeing 787s remain grounded as authorities in the United States, Japan and France investigate the Boston battery fire and a separate battery failure that forced a second 787 to make an emergency landing in Japan a week later.
(Reporting By Andrea Shalal-Esa)