Smoke that led to an evacuation of a Delta Air Lines plane at the Denver International Airport Tuesday night was caused by a hydraulic fluid leak that dripped onto an auxiliary power unit.
The plane landed in Denver a little after 8 p.m. but was stopped while taxiing due to the smoke in the cabin. The 153 people on the plane, which includes passengers and staff, were evacuated via slides and over-wing exits. The airport bussed people to the terminal.
The power unit is not used during the flight, only on the ground. When the fluid hit the hot power unit, it turned to smoke and blew into the cabin.
Airport spokeswoman Emily Williams said the plane was removed from the runway before 11 p.m. It did not cause significant delays to other flights.
One person was taken to the hospital. Williams said a few passengers had minor injuries from the evacuation.
