Airlines across the world raced to keep their fleet operating after a major software glitch forced an urgent update for Airbus SE’s most widely flown aircraft, with the rapid response avoiding a major meltdown during a crucial holiday-travel season.

American says it expects ‘some delays’ but a quick fix. Delta predicts ‘limited’ impact. United says it’s not affected.

One of the world’s largest airplane makers said Friday that intense solar radiation may corrupt data critical to flight controls on a “significant number” of its most popular aircraft, prompting a swift response from several airlines. Airbus attributed the revelation to a recent analysis involving its A320 family of aircraft.

A320 planes are flown by a number of domestic and international airlines, and the required software update could lead to "operational disruptions to passengers and customers," according to Airbus.