Alaska Airlines grounds all flights after IT outage

Core Points - Alaska Airlines experienced an IT outage that led to a temporary, system-wide ground stop for its flights, including those operated by its regional subsidiary, Horizon Air [1][2] - The airline has apologized for the disruption and warned passengers of potential residual impacts on operations [2] - Alaska Air Group operates a fleet of 238 Boeing 737 aircraft and 87 Embraer 175 aircraft [3] - The company is currently assessing the financial impact of the IT outage [4]