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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The pair, believed to be the boy's mother and stepfather, were held after the five-year-old's lifeless body was discovered in a lagoon.