Computer outage at the FAA causes hundreds of flight delays across the U.S.

Flights are being delayed at multiple locations across the U.S. after a computer outage at the Federal Aviation Administration.

At around 6:30 a.m. Eastern time Wednesday, there were 760 delays within, into or out of the U.S., according to the flight tracking website FlightAware.

The FAA said in a tweet that it was working on restoring its Notice to Air Missions System, or NOTAM.

“We are performing final validation checks and reloading the system now,” the FAA said. “Operations across the National Airspace System are affected.”

Alerts from NOTAM used to be available through a hotline, but that was phased out with the internet. The alerts provided everything from mundane information about construction at airports to notices of urgent flight restrictions or broken equipment.

The FAA said that it would provide frequent updates as it made progress.