Air traffic across the U.S. is gradually returning to normal after the Federal Aviation Administration's Notice to Air Missions system failed Wednesday morning.
The system notifies pilots of potential hazards, including closed runways and equipment outages.
The FAA ordered all airlines operating in the U.S. to pause domestic departures until 9 a.m. Flights already in the air were safe to land.
The FAA is working to restore its Notice to Air Missions System. 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 FAA ✈️ (@FAANews) January 11, 2023
At 9 a.m., officials lifted the ground stop order.
However, the outage caused flight delays across the country and impacted Air Canada flights in the U.S.
On Twitter, Air Canada advised all passengers going to or coming from the U.S. to check their flight status.
Due to the recent FAA computer outage, we invite all customers travelling today to and from the USA to check their flight status here: https://t.co/luGwoBbOy4
— Air Canada (@AirCanada) January 11, 2023
Detroit Metro Airport also advised travellers to check on the status of their flights.
The FAA said there was no evidence of a cyberattack, but the investigation is ongoing.