NTSB Finds Short-Circuiting In 787 Battery

The National Transportation Safety Board (NTSB) has confirmed that the lithium-ion battery onboard the JAL 787 aircraft which caught fire on January 7 showed signs of short-circuiting and ‘thermal runaway’, a chemical reaction which causes temperature to increase exponentially. However, the NTSB said it was far from confirming the cause of the fire. Investigators will continue to look for anything “unusual” about the battery, but answers are not forthcoming as the battery’s monitoring unit, which records inconsistencies, was severely damaged. The board also found that the battery charger showed a failure but that such damaged was expected due to the fire. “We are early in our investigation, we have a lot of activities to undertake,'” Deborah Hersman, NTSB’s chairman said in a news conference, according to Reuters. “This is an unprecedented event. We are very concerned. We do not expect to see fire events on board aircraft. This is a very serious air safety concern.”

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