The Federal Aviation Administration issued a nationwide ground stop for American Airlines flights late Tuesday evening due to an IT outage, according to a notice posted on the agency's website. The FAA and American Airlines did not immediately comment on the ground stop, which was issued around 6:30 p.m. ET.
American Airlines stated on social media that its IT team is working to restore the system as quickly as possible. The notice signifies that flights cannot depart until the issue is resolved. The grounding occurred as many U.S. East Coast airports were already experiencing significant delays and ground stops due to thunderstorms.