Airbus said it was carrying out a critical software update to a large proportion of its A320 fleet, sending airlines around the world scrambling to make the changes to the popular aircraft while avoiding potentially frustrating flight disruptions.

What happened?

Airbus’s step comes after an incident involving a JetBlue flight on October 30.

The plane took off from Mexico and was forced to make an emergency landing in Florida after a sudden drop in altitude. At least 15 people were reportedly injured.

On Friday, Airbus said in its analysis found that “intense solar radiation” may possibly corrupt data critical to the functioning of flight controls on the A320 – and that the issue affected a “significant number” of jets.

Airbus said it immediately suspended the operation of these aircraft and was working with aviation authorities while fixing both software and hardware on the A320s.

French group Thales, which makes the computer behind the A320 issue, said on Saturday that “the functionality in question is supported by software that is not under Thales’ responsibility”.

The flight control computer is certified by the European Union Aviation Safety Agency and US Federal Aviation Administration, and has been in operation since March 2001, accumulating 50 million flight hours per year on 10,000 A320s.

Thales, however, is “fully co-operating with Airbus and the relevant authorities to help resume flight operations for the affected aircraft as quickly as possible” it added in its statement.

The UAE’s General Civil Aviation Authority, meanwhile, said safety inspections and required maintenance on A320 aircraft operated by UAE national carriers are currently underway.

“The GCAA is closely coordinating with Easa and all concerned operators to ensure full compliance with airworthiness and safety requirements. These inspections aim to maintain the highest standards of operational safety and to ensure uninterrupted flight operations across the UAE,” it said in a statement to The National.