If you are flying on an Airbus A319, A320, A321 you may need to be prepared for a slight delay in departure. On October 30 a JetBlue A320 from Cancun to Newark experienced a sudden uncontrolled dive. The pilots made a safe landing in Florida. The cause of the dive was discovered to be intense solar flares which may corrupt data critical to the functioning of the flight controls. Although it is believed to be the first time this problem has been discovered in the long history of the Airbus fleet, immediately a notice went out that 6,000 aircraft have to be quickly modified.

For over 5,000 of the aircraft, the fix is simple and takes only two hours maintenance time. For roughly 900 older aircraft, new hardware is required and the fix will take longer.

An EU Air Worthiness Directive mandated that all affected Airbus planes must be fixed before they can carry passengers again. So far, most airlines have already fixed most of their aircraft which are already flying again. American completed all but 4 of its 209 Airbus planes by Saturday morning. Delta also expected all its Airbus planes to have been fixed by yesterday.

In the Asia-Pacific region, it seems only Jetstar has been experiencing major delays with the airline having cancelled 90 flights. The airline expects the required fix to be completed on its aircraft by today.

https://edition.cnn.com/2025/11/28/us/a320-series-fixes

Yes, the FAA finally issued a similar Air Worthiness Directive, but long after EU and Airbus had both taken the necessary steps to require immediate action.  I am sure the current political situation in the US played some role in the delayed announcement here.  

https://apnews.com/article/airbus-airlines-software-fix-flight-delays-a8caca9054ed3007560df90f8a6cd732?

 

I guess the silver lining is that the solar flares had only affected one aircraft without any loss of life or loss of an aircraft, and Airbus took immediate action to resolve the issue.