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All flights across the US were grounded due to a glitch with the Federal Aviation Administration's computer system this morning.
All outbound flights were grounded until around 9am Eastern Time (2pm GMT) as the Federal Aviation Administration worked to restore its Notice to Air Missions (NOTAM) system, which alerts pilots of potential hazards along a flight route.
Around 4,013 flights within, into or out of the US have been delayed today, according to flight tracker FlightAware.com, while 710 have been cancelled. Most delays were concentrated along the East Coast.
"Normal air traffic operations are resuming gradually across the US following an overnight outage to the Notice to Air Missions system that provides safety info to flight crews," the FAA said.
"The ground stop has been lifted. We continue to look into the cause of the initial problem."
Earlier it said "final validation checks" were being carried out and the system reloaded after "operations across the National Airspace System" were affected.
All outbound flights were grounded until around 9am Eastern Time (2pm GMT) as the Federal Aviation Administration worked to restore its Notice to Air Missions (NOTAM) system, which alerts pilots of potential hazards along a flight route.
Around 4,013 flights within, into or out of the US have been delayed today, according to flight tracker FlightAware.com, while 710 have been cancelled. Most delays were concentrated along the East Coast.
"Normal air traffic operations are resuming gradually across the US following an overnight outage to the Notice to Air Missions system that provides safety info to flight crews," the FAA said.
"The ground stop has been lifted. We continue to look into the cause of the initial problem."
Earlier it said "final validation checks" were being carried out and the system reloaded after "operations across the National Airspace System" were affected.
Corrupted file to blame for computer glitch which grounded every US flight
A senior government official said the corrupted file affected both the main and backup computer systems used by the Federal Aviation Administration, causing thousands of flights arriving and departing the US to be delayed, with hundreds cancelled.
news.sky.com