It may be a clue into how a commuter jet ended up on the wrong runway at the Lexington, Kentucky airport Sunday, before a crash that killed all but one of the 50 people on board.
The airport's director says the taxi route for commercial jets using the main runway at Blue Grass Airport was altered just a week before the crash. Both the old route and the new one cross over the shorter general aviation runway. The same runway that the jet used to try to take off yesterday. Investigators say the runway is too short for a plane of that size to get enough speed for a takeoff.
A member of the National Transportation Safety Board, meanwhile, says the crew and the control tower, in their pre-takeoff conversations, were talking about the correct runway, and it's still not clear how the plane ended up on the other one.
Deborah Hersman says crews will be trying to get a sense of what the pilot was seeing in the minutes before the crash, in hopes of finding out what might have caused the confusion. She says the cockpit voice recorder and the flight data recorder are in good condition.
The only survivor from the crash was the co-pilot, who was pulled from the wreckage by a policeman and is hospitalized in critical condition.