NTSB: 787 Battery Shows Evidence of 'Thermal Runaway' | Aviation International News

NTSB: 787 Battery Shows Evidence of 'Thermal Runaway'

Joseph Kolly, director of the NTSB office of research engineering, points to damaged electrode windings from the lithium-ion battery removed from the JAL 787. (Photo: Bill Carey)

January 24, 2013

The damaged lithium-ion APU battery from the Japan Air Lines Boeing 787 that caught fire on January 7 while parked at Boston’s Logan Airport experienced an uncontrolled chemical reaction known as a “thermal runway” and short circuiting, but the cause and sequence of these events are still unknown, according to the U.S. National Transportation Safety Board (NTSB).

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