Airbus has advised airlines operating A320 Family aircraft to take immediate precautionary measures after an investigation revealed that intense solar radiation may, in rare circumstances, corrupt data essential to flight-control functions.
The manufacturer disclosed that a “significant number” of in-service aircraft could be affected. The recommendation follows the analysis of a recent operational event involving an A320 Family jet, during which solar activity was identified as a possible trigger for data corruption within flight-control systems.
AOT issued ahead of EASA emergency directive
Airbus has worked with regulators to issue an Alert Operators Transmission (AOT) instructing carriers to apply available software and hardware protections. The European Union Aviation Safety Agency (EASA) is preparing an Emergency Airworthiness Directive to formalize the requirement.
The upcoming directive is expected to require operators to implement mitigation measures immediately. While Airbus has not publicly detailed the scope of aircraft affected, the instruction covers a meaningful portion of the global A320ceo and A320neo fleets, which form the backbone of short- and medium-haul operations worldwide.
Operational disruptions expected
Airbus acknowledged that the measures will lead to short-term operational impacts as airlines apply the mandated fixes.
The company emphasized that safety remains its “number one and overriding priority” and said it will work closely with operators to minimize disruption for passengers and customers.
Airbus did not specify whether any aircraft will require temporary grounding during the implementation period, but confirmed that airlines may experience schedule adjustments depending on fleet size, modification timelines, and maintenance planning.
A320 Family remains the world’s most deployed single-aisle fleet
With more than 6,000 A320 Family jets in service, the type is central to the global single-aisle market. In October 2025, it became the most delivered commercial aircraft family in history, surpassing the Boeing 737.
Airbus stressed that the precautionary actions are designed to “ensure the fleet is safe to fly” and that the event highlighting the issue did not result in any loss of control or injury.