JetBlue’s October 30 altitude drop exposed how a spike in solar radiation could corrupt an A320’s elevator aileron computer, so the FAA, EASA, and Airbus ordered an emergency software flash across roughly 6,000 aircraft. Airlines ran overnight maintenance blitzes—American cleared 205 of 209 jets in one shift, ANA and Jetstar canceled short-haul banks to gain hangar time, and Lufthansa leaned on digital twins to validate the firmware. More than 5,000 jets were patched inside 24 hours, fewer than 100 aging ELAC modules still need hardware swaps, and operators are now baking NOAA solar alerts and telemetry audits into standard ops briefs.

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