The Directorate General of Civil Aviation (DGCA) announced on Sunday, November 30, 2025, that Indian airlines have completed software upgrades on 323 operational A320 family aircraft. This move addresses a potential flight control problem caused by intense solar radiation, flagged by Airbus on November 28. Airbus warned that solar radiation could corrupt critical flight control data in A320 family planes. Initially, 338 aircraft across IndiGo, Air India, and Air India Express were targeted for upgrades. Out of these, 323 planes were operational, 6 were under maintenance, and 9 Air India planes did not require the upgrade, according to a senior DGCA official. IndiGo has upgraded all its 200 operational A320 planes. Air India completed upgrades on 100 of its 113 affected aircraft; four remain under maintenance, and nine needed no modifications. Air India Express performed upgrades on 23 planes, with two under maintenance for redelivery. On November 29, DGCA issued an Airworthiness Directive demanding immediate upgrades after Airbus's global alert and the European Aviation Safety Agency’s (EASA) Emergency Airworthiness Directive. EASA said Airbus instructed operators to install a serviceable Elevator Aileron Computer (ELAC), crucial for flight controls, in these affected aircraft.