Alaska Airlines grounded all planes in the U.S. Wednesday morning
PORTLAND, Ore. (KOIN) -- Alaska Airlines grounded all flights in the U.S. early Wednesday morning, according to the air carrier.
The aircrafts "experienced an issue while performing an upgrade to the system that calculates our weight and balance," Alaska Airlines officials said in a statement to KOIN 6 News.
"Out of an abundance of caution, we requested a ground stop for all Alaska and Horizon flights, which was instituted at approximately 7:30am PT. The issue was mitigated and the ground stop for Alaska and Horizon flights expired at 8:30am PT. We have begun releasing flights. Residual delays are expected throughout the day. 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."
Stay with KOIN 6 News as this story develops.