American Airlines says a “vendor technology issue” prompted a nationwide ground stop on Christmas Eve. The Fort Worth, Texas-based airline and its regional subsidiaries were forced to halt flights on Tuesday.
The ground stop lasted roughly an hour. According to data from Anuvu Pulse, just 22% of the carrier’s flights have left on-time so far.
Flights resumed around 8 a.m. ET after the issue was resolved.
“We sincerely apologize to our customers for the inconvenience this morning,” an airline spokesperson said in a statement. “It’s all hands on deck as our team is working diligently to get customers where they need to go as quickly as possible.”