The Civil Aviation Authority of Vietnam late Friday called an emergency meeting with domestic carriers to discuss the impact of Airbus’ global recall of 6,000 jets of the A320 family.

The European Union Aviation Safety Agency (EASA) had earlier ordered airlines worldwide to replace the equipment or update the software of the flight control computer system for A319, A320 and A321 jets.

81 of the 169 A320 and A321 aircraft in operation in Vietnam will be affected and require equipment replacement or software update.

CAAV said that due to this force majeure situation, in the coming days, some flights will be affected as airlines comply with the manufacturer’s directive.

Carriers have reviewed and prepared materials, spare parts, software and personnel to begin work immediately, aiming to complete the process as early as possible in line with EASA and Airbus requirements.

Airlines are also urgently reviewing their operating plans, particularly for Sunday and Monday, to make adjustments that minimize cancellations and disruptions to passengers.

The CAAV directed airlines to facilitate passengers affected by cancellations or schedule changes, including waiving rebooking fees, offering refunds and arranging the nearest available flights, while strictly fulfilling carrier responsibilities and obligations in cases of delays or cancellations.

Vietnam currently has 14 commercial and specialized airlines operating 254 aircraft. Carriers operate 52 domestic routes and 211 international routes.

Airbus’s recall of 6,000 jets appears to be among the largest recalls affecting Airbus in its 55-year history and comes weeks after the A320 overtook the Boeing 737 as the most-delivered model.

At the time Airbus issued its bulletin to the plane’s more than 350 operators, some 3,000 A320-family jets were in the air.

The fix mainly involves reverting to earlier software and is relatively simple, but must be carried out before the planes can fly again, other than repositioning to repair centers, according to the bulletin to airlines seen by Reuters.