By AUDREY McAVOY

An aircraft heavily used by commercial airlines around the world needs a software fix to address an issue that contributed to a sudden drop in altitude of a JetBlue plane last month, the manufacturer and European aviation safety regulators said Friday.

The step may result in some flight delays as U.S. travelers return home from the Thanksgiving holidays.

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

The European Union Aviation Safety Agency issued a directive requiring operators of the A320 to address the issue. The agency said this may cause “short-term disruption” to flight schedules.

American Airlines was among the carriers addressin

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