Indian Airlines Complete Urgent A320 Software Fixes Amid Global Alert

India's aviation regulator, the Directorate General of Civil Aviation (DGCA), announced on Sunday that Indian carriers have successfully completed the mandatory software upgrades on 323 operational Airbus A320 family planes to address a critical flight control vulnerability.

The rapid action follows an urgent global alert issued by Airbus and the European Aviation Safety Agency (EASA) regarding a potential issue where intense solar radiation could corrupt data critical to the aircraft's Elevator Aileron Computer (ELAC), which governs flight controls.

Quick Compliance Avoids Major Disruption

The DGCA had issued an Airworthiness Directive on Saturday, mandating immediate compliance. The swift response from the major Indian operators IndiGo, Air India, and Air India Express allowed the country to avoid the mass flight cancellations initially feared globally.

IndiGo was the fastest to comply, completing the upgrades on all 200 of its operational A320 family planes identified for the fix. Air India completed the modifications on 100 of its operational affected aircraft. Nine planes were later assessed as not needing the upgrade, and four remain under base maintenance. Air India Express carried out upgrades on 23 of its A320 family planes, with two remaining under maintenance for redelivery.

A total of 338 A320 family aircraft across the three carriers were initially flagged for the software realignment.

The Technical Issue

The alert was prompted by an in-flight incident involving an A320 abroad that experienced an uncommanded pitch-down event. Airbus determined the cause was a specific software/hardware combination in the ELAC that made the system susceptible to data corruption from external factors like solar flares.

EASA's directive required operators to install a serviceable ELAC or update the protective software. With the completion of these urgent modifications, Indian air travel is expected to normalize quickly, having faced only minor delays and minimal cancellations during the two-day rectification process.