WASHINGTON — The Boeing 787 Dreamliner battery that caught fire earlier this month in Boston shows evidence of short-circuiting and a chemical reaction known as "thermal runaway," in which an increase in temperature causes progressively hotter temperatures, federal accident investigators said Thursday.
It's not clear to investigators which came first, the short-circuiting or the thermal runaway, National Transportation Safety Board Chairman Deborah Hersman said. Nor is it clear yet what caused either of them, she said during a news briefing on the board's investigation.
Read more: http://www.thenewstribune.com/2013/01/24/2448100/ntsb-boeing-787-battery-shows.html
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