(AP) - Airlines around the world canceled and delayed flights heading into the weekend to fix software on a widely used commercial aircraft after an analysis found the computer code may have contributed to a sudden drop in the altitude of a JetBlue plane last month.

Airbus said Friday that an examination of the JetBlue incident revealed that intense solar radiation may corrupt data critical to the functioning of flight controls on the A320 family of aircraft.

The FAA joined the European Union Aviation Safety Agency in requiring airlines to address the issue with a new software update. More than 500 U.S.-registered aircraft will be impacted.

The EU safety agency said it may cause “short-term disruption” to flight schedules. The problem was introduced by a software update to the pla

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