Thousands of Airbus A320 airliners around the world might require a software update, potentially causing flight delays or cancellations during the busy Thanksgiving holiday weekend. Airbus identified an apparent issue relating to "intense solar radiation," which "may corrupt data critical to the functioning of flight controls" and recommended an emergency software update to the A320 family of aircraft – a common passenger plane for U.S. carriers. This emergency update stems from an incident Oct.