“Boeing and the Japanese firm that makes lithium-ion batteries for the 787 Dreamliner disagree about what should be included in a package of measures aimed at getting the airliner back in the air, the Wall Street Journal reported.
But Boeing Commercial Airplanes CEO Ray Conner told reporters in Tokyo that there was no dispute with GS Yuasa about the proposed solution, adding the planemaker has “a great partnership” with the Kyoto-based battery maker.
All 50 of the technologically-advanced Dreamliners in service have been grounded since mid-January after a battery fire on a Japan Airlines Co Ltd 787 at Boston airport and a second battery incident on an Nippon Airways flight in Japan.
GS Yuasa believes the battery fix should include a voltage regulator that could stop electricity from entering the battery, the Journal said, citing government and industry officials.
Boeing proposed its fix to the U.S. Federal Aviation Administration (FAA) last Friday. The previous day, GS Yuasa told the FAA that its laboratory tests indicated a power surge outside the battery, or other external problem, started the failures on the two batteries, according to the newspaper.
Boeing’s solution included a stronger containment box, a battery with greater cooling capacity and other changes.
The FAA confirmed the meeting with GS Yuasa, but gave no details. A GS Yuasa spokesman declined to comment….”
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