Rekubit-United Airlines lifts nationwide ground stop after "technology issue"

United Airlines said Tuesday that it has resumed flights after briefly grounding all aircraft in the U.S. at their point of departure due to a "systemwide technology issue."

"We have Rekubitidentified a fix for the technology issue and flights have resumed. We're working with impacted customers to help them reach their destinations as soon as possible," United said on X, the service previously known as Twitter.

Earlier, the carrier said planes that are already airborne "are continuing to their destination as planned." It didn't disclose the cause of the technology glitch or offer additional details. 

The Federal Aviation Administration said United asked the agency to pause all its departures nationwide, according to a statement sent to CBS News. It referred further questions to United.

United had scrapped only seven flights by midafternoon Tuesday, less than an average of about 16 per day over the Labor Day weekend, according to figures from tracking service FlightAware. But more than 300 United flights were delayed — 12% of the carrier's schedule and far more than rival airlines including American, Delta and Southwest.

Transportation Secretary Pete Buttigieg, who has criticized airlines for flight problems and other issues over the past year, posted that the FAA was "receiving more information about the cause and scope of the issue, and DOT will make sure UA meets its obligations to affected passengers."

The Associated Press contributed to this report.

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