Airline pilots are often exhausted. An extreme example happened in 2008, when a pilot and a co-pilot both fell asleep at the controls, missing their landing in Hawaii -- earning pilot's license suspensions as well as getting fired.
원문출처 : https://www.cnn.com/travel/article/pilots-sleep-cockpit-airline-safety/index.html
원문출처 : https://www.cnn.com/travel/article/pilots-sleep-cockpit-airline-safety/index.html