"The cause of the pre-dawn crash wasn't known, but Paul Sharpe, a JetsGo worker, lent support to unconfirmed reports that the 747 didn't have enough runway to takeoff safely.
He told Canadian Press the plane was supposed to leave from the end of a 2,700-metre runway, but entered through a taxiway at the 2,000-metre mark.
"From where she left, they only had about 6,000 feet and it just wasn't enough runway," he said."
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