1.   A plane that is too heavy on landing may overshoot the runway, or collapse its landing gear, or burst tires.

2.   Chief blame in that case is expected to focus on a piece of metal left on the runway that burst a tire.

3.   An airliner that made an emergency landing after bursting two tires was badly overloaded with extra freight, a newspaper reported Monday.

4.   Five tires were burst and the plane was still mired in the mud Thursday.