Main FAA Warning System, NOTAM, Is Down

The Federal Aviation Administration used a backup system to send safety alerts to pilots due to a temporary outage in their primary system, with Transportation Secretary Sean Duffy confirming no impact on the National Airspace System. The F.A.A. was working to restore the primary system and warned of possible flight delays, but as of Sunday morning, there were no further updates on the outage. The agency’s technicians were addressing service outages in the NOTAM system, which has experienced previous outages, impacting air traffic service across the vast U.S. airspace.

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