X-rays could provide clues to 787 battery problem

Investigators are looking at x-rays of the lithium-ion battery that appeared to overheat on a Japan Airlines Boeing (BA) 787 earlier this week as they try to work out what caused the problem.

The x-rays were taken when the battery left the factory. The idea is that the images might provide clues as to what went wrong. There's also hope that the investigation will shed light on what caused last year's two battery failures.

The Japan Civil Aviation Bureau is leading the probe, which also involves staff from the U.S. National Transportation Safety Board.

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