GS Yuasa Corp., the company that makes batteries used on Boeing Co.’s new 787 planes, said Thursday it may take months to complete an investigation into what caused an emergency landing of an All Nippon Airways Co. Dreamliner.
The company needs to find out whether the emergency landing Wednesday in Kagawa Prefecture was caused by an issue with its battery or the entire electrical system, GS Yuasa spokesman Hiroharu Nakano said. The plane’s electrical system needs to be dismantled for the investigation.
Shares of Kyoto-based GS Yuasa fell as much as 7.5 percent, the most in almost three months, Thursday after a suspected battery fire on the ANA jet triggered the grounding.
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