Two Japanese airlines have grounded their fleets of Boeing 787 Dreamliners after an emergency landing Wednesday.
An All Nippon Airways 787 made an emergency landing in Japan after an alarm signal on a battery activated, an ANA spokesman said. ANA has 17 Dreamliners.
Japan Airlines also announced it is grounding its seven 787s.
Dreamliner troubles dating back four months include a batter fire last week and earlier reports of an oil leak, a fuel leak, engine cracks and a damaged cockpit window.
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