The outage began at approximately 1 p.m. ET on Sunday, and the FAA responded by putting in a ground stop for flights heading to ATL. As the hours passed and crowds, lines and traffic increased, the Atlanta Police Department sent extra officers to assist, and airport personnel handed out water and food to stranded passengers. Chik-Fil-A even broke its longstanding tradition of being closed on Sundays and called in employees to serve food. By Sunday evening, the city prepared the Georgia International Convention Center to take in any passengers who needed a place to stay.