The European aerospace corporation Airbus announced the recall of a "significant number" of operational A320 aircraft due to identified issues in the control systems. The liners are set to have their software replaced, according to a statement published on the company's website on Friday, November 28. Airbus reported that an analysis of a recent incident involving an A320 showed that "intense solar radiation can damage data critical for the operation of flight control systems." As a result, the company requested airlines to take "immediate precautionary measures" - to install "software and/or hardware protection measures." Airbus representatives apologized for the fact that this would "lead to disruptions for passengers and customers." Sources from Reuters in the industry specify that the recall will affect more than half of the global fleet of aircraft in this family - about six thousand liners out of the 11,300 currently in operation. According to the agency, Airbus plans to simply "roll back" the already installed software to a previous version. The reason for the recall was the investigation of an incident on the Cancun - Newark flight. According to sources from Reuters, the decision to recall the aircraft at Airbus was made after reviewing the incident on a flight by the American airline JetBlue from Cancun (Mexico) to Newark (USA) that occurred on October 30. At that time, after a sudden loss of altitude, several passengers were injured. Due to issues with the flight control system, the pilots made an emergency landing in Tampa. ## Airlines warned of delays and cancellations It is expected that installing the required version of the software on each aircraft will take about two hours. However, as sources from Reuters indicate, repairs may take longer since more than 1,000 aircraft will likely also require equipment replacement. Airbus's sudden decision has led to disruptions worldwide. The Finnish airline Finnair was forced to delay one of its flights by nearly an hour due to the installation of the required software version. French Air France-KLM canceled 38 flights - about 5% of all daily flights of the company. Mexican Volaris announced delays and cancellations of flights in the next 72 hours. Additionally, American Airlines - the world's largest operator of A320 aircraft - reported that repairs will be needed for approximately 340 out of 480 liners. They plan to complete it by November 29. Colombian Avianca, which has more than 70% of its aircraft (about 100) as A320s, has closed ticket sales for flights until December 8 due to repairs.