Battery Problem Reported On Boeing Dreamliner In Japan

Tuesday, January 14, 2014

Reports of white smoke from a battery compartment have temporarily grounded a Boeing 787 Dreamliner in Japan, nearly a year after all the new airliners were grounded due to a problem with batteries overheating. Today's incident happened on an airliner at Tokyo's Narita Airport that had no passengers aboard.

It was during a preflight checkout that a mechanic saw smoke emerging from the underside of a Japan Airlines Dreamliner, according to Japan's NHK TV News

From the broadcaster:

"The smoke quickly stopped. Airline officials found that an electrolytic solution had leaked from an open safety valve of one of the 8 cells in a battery box at the front.

"The carrier says the battery may have overheated for an unknown reason. It says the safety valve was activated and smoke was generated when the solution evaporated."

No similar problems have been reported, according to NHK, which adds that Boeing believes the plane's battery system functioned as it should.

Boeing's Dreamliners were cleared to return to service last April, after the airline maker redesigned the craft's battery system. By last August, the company had delivered around 70 of the new planes, as NPR's Wendy Kaufman reported.

Copyright 2014 NPR. To see more, visit

Source: NPR


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