787 Probes All But Dismiss Battery Overcharge as Analyses Continue | Aviation International News

787 Probes All But Dismiss Battery Overcharge as Analyses Continue

Deborah Hersman, chairman of the National Transportation Board (NTSB), briefs the press in Washington, D.C., on January 24. At left stands John DeLisi, director of the NTSB office of aviation safety, and, at right, Joseph Kolly, director of the office of research engineering. (Photo: Bill Carey)

January 28, 2013

Investigations of separate incidents involving Boeing 787s in the U.S. and Japan appear to concur that the batteries that burned in each case did not overcharge. But investigators continue to seek causes for the two incidents that led to the grounding of the worldwide 787 fleet. The probes remain focused on the eight-cell lithium-ion batteries manufactured by Japan’s GS Yuasa for Thales, which supplies the 787’s electrical power conversion system.

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