A small fire in the brake system just ahead of the jet’s takeoff prompted the evacuation of 173 passengers and six crew members, the authorities said.

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

A tire malfunction during takeoff caused smoke and flames to erupt on a Miami-bound American Airlines flight, prompting a runway evacuation and airport delays.