PARIS: Fears of days of travel chaos across Europe and the world eased on Saturday after plane manufacturer Airbus intervened rapidly to implement a software upgrade it had said was immediately needed on some 6,000 of its A320 planes. The announcement by Europe’s top plane manufacturer late Friday that the planes could not fly again until the switch was made followed an incident in the United States and raised concerns that hundreds of planes would need to be grounded for long periods.

A solar radiation–linked software flaw in Airbus A320 jets triggered urgent global fixes, causing possible delays but no safety risk for travelers.

Immediate software change on ‘significant number’ of jets to result in disruption to half the global fleet