Reed and Hartsfield-Jackson International Airport General Manager Roosevelt Council said crews are working to re-establish commercial flight operations by midnight.
Here’s what we learned about the fire and what happened happen:
At 12:38 p.m., Georgia Power officials noted multiple faults in its system that were discovered to be the result of a fire at an underground power station.
Many criticized the airport, asking how power could fail throughout the sprawling complex, and how it could be that an airport couldn't switch to redundant systems. Reed said the fire was so intense it knocked out a switching system that would move service to redundant power networks.
The cause of the fire is still unknown, but there is no evidence of foul play. Reed said Georgia Power and airport crews are focused on getting systems back online. Authorities are sweeping the airport grounds, but an act of terrorism at this point has not been ruled out, Reed said. "Because we don't know source of the fire, we don't know" if system might have been tampered with, he said.
Tens of thousands of airport passengers were stranded when the power went out.
Reed said airport officials are working to provide food and water for stranded passengers. He said he had been in contact with Dan Cathy, CEO of Chick-fil-A about providing meals. Officials also are working on making accommodations for the night at the nearby Georgia International Convention Center. The convention center can hold 8,000 to 10,000 people. Some passengers are making their way to hotels in the city, while officials are also making arrangements at the Georgia World Congress Center.
The Federal Aviation Administration will retain normal staffing in the control tower. The airport is open and accepting general aviation and cargo operations. Air traffic controllers also will be ready to handle commercial flights as soon as they resume.
Reed and Council said crews are preparing for the airport to accept commercial flights at midnight.