American Airlines had more than 830 delays as it tried to fix a technical issue.
The company said on X that it was “actively troubleshooting” the issues, but did not give specifics other than to say there was a “technical issue impacting some of our maintenance applications.”
Bloomberg said that about 28% of the airline’s mainline flights were affected, but regional partners were not.
The American issue came hours after United also had a technical issue that grounded all flights in the U.S. and Canada, CBS News reported. The unspecified problem prevented flights from taking off for about 30 minutes.