Airbus has issued a flight disruption warning, requesting modifications to 6,000 planes due to a software issue. The problem, discovered after a JetBlue aircraft experienced a sudden drop in altitude due to solar radiation, affects around 6,000 aircraft worldwide, primarily the A320 family. The fix involves installing new computer software, which should take about three hours for most planes, but older planes may require replacement computers, causing longer disruptions. This issue is considered unusual, as it was caused by a sudden and intense solar storm, and it has prompted a cautious response from Airbus, which is taking the issue to regulators and asking airlines to make changes. The skies are quieter at this time of year, but the potential impact on flights is still significant, with some airlines warning of disruptions and others preparing for potential delays. The CAA advises customers to check airline websites and apps for the latest information. This situation highlights the importance of software updates and the potential consequences of software issues in aviation.