Airlines in several regions began canceling and delaying flights on 29 November 2025 after aviation authorities identified a software problem in Airbus A320-family aircraft. The investigation began after an incident on 30 October 2025, when a JetBlue flight from Cancun to Newark experienced a sudden altitude drop and diverted to Tampa. Technical reviews suggested that strong solar radiation may have damaged data in the flight control system after a recent software update. Aviation agencies ordered a corrective update for more than 500 aircraft registered in the United States. The timing created pressure for carriers because the period after the Thanksgiving holiday is considered the busiest travel season. Airlines in Japan, Europe, India, and the United States prepared for possible disruptions as engineers worked to address the malfunction.

Most carriers reported that the update could be completed during routine maintenance periods, such as overnight inspections or short ground intervals. American Airlines stated that more than 200 aircraft required the reset, while All Nippon Airways canceled 65 domestic flights and announced that further delays were possible. Delta, United, and Air India described limited impact, and Hawaiian Airlines confirmed that its fleet remained unaffected. Aviation specialists explained that the A320 family is widely used and plays an important role in global travel. Experts noted that the situation highlighted the need for digital systems that can handle environmental interference. Analysts added that careful repairs, stable operations, and continued monitoring are essential for long-term aviation safety.