Effective at around 10:50 a.m. Eastern time, The US Federal Aviation Administration issued a ground stop advisory issued a ground stop advisory on Wednesday for Alaska Airlines, saying:
"All Alaska mainline and subcarrier flights ground stopped."
Alaska Airlines grounded its entire U.S. fleet Wednesday morning after experiencing problems with a computer system upgrade.
The Seattle-based carrier said in a statement that an issue arose while performing an upgrade to the system that calculates the weight and balance for Alaska Airlines and Horizon flights.
The ground stop caused delays and cancellations across Alaska Airlines' route network, with at least seven flights delayed from San Francisco International Airport
The carrier encouraged the passengers to check its website before reaching the airport. In a statement, an Alaska Airlines spokesperson said that the company
"experienced an issue while performing an upgrade to the system that calculates our weight and balance." The Federal Aviation Administration (FAA) instituted a ground stop for all Alaska and Horizon Air flights at approximately 7:50 a.m. PT.
“We’re working to resolve the issue as quickly as possible,” the airline said in a statement. “We apologize for the inconvenience and encourage guests to check the status of their flights on alaskaair.com or the Alaska App prior to heading to the airport,”
