The US Federal Aviation Administration (FAA) has said it will temporarily ground Boeing's 787s after a second incident involving battery failures caused one of the Dreamliner passenger jets to make an emergency landing in Japan.
The FAA said airlines would have to demonstrate that the lithium ion batteries involved were safe before they could resume flying Boeing's newest commercial airliner, but gave no details on when that could occur.
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Clocks will go forward 30 minutes so there is half an hour more daylight in the evening when energy consumption peaks.