The European Union Aviation Safety Agency (EASA) issued a directive on the evening of 28/11/2024, mandating that airlines worldwide operating Airbus A319, A320, and A321 aircraft replace or update the software for their ELAC (altitude and flight direction control) computer control equipment. This regulation became effective at 6:59 AM on 30/11/2024 (Vietnam time). Following this, the Civil Aviation Authority of Vietnam (CAAV) held an emergency meeting with domestic airlines on the night of 28/11/2024 to initiate implementation. Across Vietnam, 81 out of 169 operational A320/321 aircraft are affected and require equipment replacement.

Aircraft at Noi Bai International Airport. Photo: *Giang Huy*.

In the coming days, some flights are expected to face disruption as airlines comply with the manufacturer's requirements. Airlines have proactively reviewed their resources, ensuring the readiness of materials, spare parts, software, and personnel for immediate deployment. Their objective is to complete the necessary updates as quickly as possible, adhering to EASA and Airbus directives. Airlines are also urgently reviewing their operational plans, particularly for 30/11/2024 and 1/12/2024, to implement suitable adjustments and minimize flight cancellations that could affect passengers.

Leaders of the Civil Aviation Authority of Vietnam (CAAV) have categorized this situation as force majeure. To ensure aviation safety and minimize passenger impact, the CAAV has directed Vietnamese airlines to urgently replace ELAC computer control equipment or update its software. Furthermore, airlines must review operational plans and adjust flight schedules to minimize disruption to passengers. They are also required to facilitate itinerary changes for passengers affected by cancellations or schedule alterations, which includes: waiving rebooking fees, offering refunds, and arranging the nearest available flights. Airlines must strictly fulfill their responsibilities as carriers in cases of flight delays or cancellations.

Vietnam's aviation sector currently comprises 14 commercial and specialized airlines, operating a fleet of 254 aircraft. This number is projected to reach 400 aircraft by 2030. The airlines collectively manage 52 domestic and 211 international routes.

Doan Loan