Passengers on board American Airlines Flight 1387 from Kansas City, Missouri to Dallas were evacuated after landing at D/FW International Airport Monday morning.
The pilot of the American Airlines MD-80 landed safely at 7:53 a.m., the airline said, but a mechanical issue left a haze in the cabin.
Emergency crews met the plane after touchdown and evacuated the passengers.
A woman who said she was on board the aircraft told KSNT-TV the haze had an irritating chemical smell.
No injuries have been reported and the airline has not said what caused the haze to fill the cabin.