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Alaska Airlines and its regional subsidiary Horizon Air lifted a requested ground stop caused by a computer system outage early Monday (July 21) morning, the Federal Aviation Administration confirmed via NBC News.
The change was made at around 2:00 a.m. ET. Alaska Air had previously revealed that an outage involving its information technology network was "impacting our operations" in a statement regarding the ground stop request.
“We are experiencing issues with our IT systems. We apologize for the inconvenience and are working to resolve the issues," a message shared on the airline's website stated.
The solved ground stop issue could still have a lasting effect and cause delays on flights scheduled through Monday.
"There will be residual impacts to our operation throughout the evening," Alaska Airlines said in its earlier statement.
Alaska Airlines and Horizon Air ticket holders were told to check the status of their flights prior to arriving at departure points. The incident took place nearly one year to the day of a similar situation in which a the cybersecurity company CrowdStrike's sensor configuration update to its platform resulted in a system crash that impacted its airlines, medical facilities, businesses and police forces worldwide, with computers used by companies affected showing "blue screens of death," according to NBC News.
The exact cause of the Alaska Air computer system outage was not yet made clear publicly at the time of publication.