Planes in the US turned back to airports as all flights across the country were grounded due to a Federal Aviation Administration (FAA) computer glitch on Wednesday, 11 January, tracker footage from Flightradar24 shows.
In a Twitter post, the FAA said it was working to restore its Notice to Air Missions System.
“We are performing final validation checks and reloading the system now,” the statement read.
Flight tracking website Flight Aware showed that over 400 flights were delayed within, into, or out of the country at 5.31 am ET (10:31am GMT).
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