Our preliminary work has traced the outage to a damaged database file.
At this time, there is no evidence of a cyberattack.
Flights were grounded after the corrupted file was discovered in the NOTAM main and backup system.
Planes parked at John F. Kennedy International Airport in New YorkMichael Nagle/Xinhua via Getty Images
Flights already in the air were permitted to land.
The ground stop was lifted at 5:50 AM PT/8:50 AM ET.
We continue to look into the cause of the initial problem, the agency said.
Secretary of Transportation Pete Buttigieg said that he has directed an after-action process to determine the cause.
They dont know what the cause of it is.
The FAA also said that all flights currently in the sky are safe to land.
Pilots check the NOTAM system before they fly.
We are performing final validation checks and reloading the system now.
Operations across the National Airspace System are affected.
We will provide frequent updates as we make progress, the statement, released at about 3.30am PT noted.
