Flight death: US co-pilot's call to control tower
A pilot on an overnight flight from Phoenix to Boston is believed to have died of a heart attack.
The American Airlines flight landed safely when the co-pilot took over the controls and diverted the plane to Syracuse, New York.
In a call to the control tower the first officer can be heard saying the captain was "incapacitated".
After the flight made a safe emergency landing, passengers who had been on board spoke of their shock.