Delta first officer makes emergency landing in Las Vegas after pilot locks himself out of cockpit The pilot of a delta flight from Minneapolis to Las Vegas locked himself out of the cockpit after he left to use the restroom. The co-pilot had to make an emergency landing at the McCarran airport. BY Alejandro Alba NEW YORK DAILY NEWS Sunday, February 1, 2015, 10:49 AM A Delta Air Lines pilot locked himself out of the plane's cockpit on a flight from Minneapolis to Las Vegas on Thursday afternoon, which forced the first officer to make and emergency landing at the McCarran International Airport in Las Vegas. "About half way through [the 2.5-hour flight] there seemed to be some talking at the front of the plave. You could see the captain out there," Jesse Dougherty, passenger of Flight 1651, told ABC News. "There wasn't a huge panic, but some confusion." The MD-90 aircraft had 168 passengers on board. Jonathan Thalacker, passenger of Flight 1651, said that a piece of string was the source of the jammed door. Delta has yet to confirm what made the door malfunction.