Federal regulators have approved a Boeing plan to redesign the 787 Dreamliner's fire-prone lithium-ion batteries, although extensive testing will be needed before the planes can fly passengers again.
The Federal Aviation Administration said Tuesday the plan includes a redesign of the internal battery components to minimize the possibility of short-circuiting, better insulation of the battery's eight cells and the addition of a new containment and venting system.
The FAA says the battery certification plan requires a series of tests, including flight tests, which must be passed before the 787 can return to service.
The 787 fleet worldwide has been grounded since Jan. 16, following a battery fire on a Dreamliner parked in Boston and a smoking battery that led to emergency landing by other another 787 in Japan.
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Source: http://www.nbcnews.com/business/faa-approves-boeing-plan-fix-787s-batteries-1C8832802
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