Alaska Airlines has resumed flights after the failure of a critical piece of hardware forced the airline to ground all its planes for approximately three hours, but the effects will linger into Monday, the company announced. The carrier issued a system-wide ground stop for Alaska Airlines and Horizon Air flights around 8 p.m. Pacific time Sunday. The stop was lifted at 11 p.m., the Seattle-based company said in a social media post. More than 150 flights have been canceled since Sunday evening. The FlightAware tracking site reported 84 cancellations and nearly 150 delays Monday. https://www.wthr.com/article/news/nation-world/alaska-airlines-resumes-flights-equipment-failure-data-center-grounds-planes/507-48b84605-076d-421b-89e2-e79ed3f7f761