Washington: An investigation into the battery of Boeing 787 Dreamliner that caused a fire in Boston early this month, showed signs of thermal runway and short-circuiting, US government investigators said.
"Here are findings to date. Fire was present. There are signs of thermal runaway and of short-circuiting," the National Transportation Safety Board (NTSB) Chairman Deborah Hersman told reporters yesterday on the investigation into the incident, following which several airlines including Air India have grounded their Boeing 787 Dreamliner.
25/01/13 PTI/Economic Times