There was a very large CME ten days ago. The NOAA scale had predicted a high likelihood of disruptions, and had specifically suggested that spacecraft and high altitude aircraft could be impacted.

https://www.swpc.noaa.gov/noaa-scales-explanation

https://kauai.ccmc.gsfc.nasa.gov/CMEscoreboard/prediction/de...

I feel like the event was something that happened to a plane. That said, I wouldn't think sunlight would be penetrating to the chips running the plane.

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