"TAP has already completed the update of its entire impacted fleet, totalling 41 aircraft," the airline said in a statement, emphasising that the process occurred "without interruption of operations and always maintaining the safety of passengers and crews."

The carrier, which reported on Saturday that the update of the flight control software for its A320 aircraft was underway, highlighted the "extraordinary feat achieved only thanks to the unparalleled proactivity, coordination and dedication" of its Maintenance & Engineering and Operational Control Center teams.

Airbus announced on Friday the recall of approximately 6,000 A320 aircraft for the urgent replacement of flight control software due to problems caused by exposure to solar radiation.

In a statement, the aircraft manufacturer reported that it had requested all customer airlines using this software to immediately suspend their flights, following the analysis of a technical incident that occurred on October 30 on a JetBlue flight between Cancun, Mexico, and Newark, near New York, when an aircraft had to make an emergency landing in Tampa, Florida.

The analysis of the incident "revealed that intense solar radiation can corrupt data essential for the operation of the flight controls."

For most aircraft, the software update from the previous version was expected to take "a few hours." But for about 1,000 aircraft, it involves replacing the computer hardware, "which will take weeks," a source close to the process told Agence France-Presse (AFP).

The Airbus A320, which entered service in 1988, is the world's best-selling aircraft. In September, Airbus dethroned the Boeing 737, from the American manufacturer Boeing, whose first unit was delivered in 1968.

At the end of September, Airbus had delivered 12,257 A320 aircraft (including business class versions), compared to 12,254 Boeing 737s.