One person was taken to a hospital Saturday afternoon after an equipment problem on an American Airlines flight at Denver International Airport forced passengers and crew to evacuate onto the runway.

Passengers slid down an emergency slide of a smoking jet at Denver’s airport due to a possible problem with the plane’s landing gear, authorities said.

The Denver Fire Department said it quickly extinguished the fire beneath the plane, which may have started from a combination of the blown tire and the abrupt braking of the airplane, which was heade...