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Report: Burnt Boeing 787 circuit boards snag Japan probe

Updated: January 25, 2013 9:06AM

A device seen as key to explaining why a Boeing Co. 787 Dreamliner jet made an emergency landing in Japan last week is burnt and unlikely to provide safety inspectors with data they need, according to a Reuters report that cited a person with knowledge of the ongoing investigation.

Circuit boards that control and monitor the performance of the plane’s lithium-ion battery unit were charred and may be of little use to the teams investigating why the battery effectively melted, forcing safety investigators to scramble for possible clues from other components in the plane’s electronics, the person, who didn’t want to be named as the probe is ongoing, told Reuters.

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