Boeing has started to replace battery systems on its 787s, but admitted it may never know what caused the malfunctions that resulted in the entire fleet of Dreamliners being grounded in January.
A team of 300 Boeing engineers forming 10 teams began working on the 50 aircraft, after the US Federal Aviation Administration (FAA) approved the new measures. The news comes after three months of investigation. The 787 is the first aircraft to be fitted with lithium ion main power batteries, which are lighter and smaller but potentially…
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