Airbus grounds A320 aircraft amid solar radiation risk

Re:Airbus grounds A320 aircraft amid solar radiation risk by dboreham on Friday November 28, 2025 @03:00PM (#46082234)

Curious how a software update can be rolled back to mitigate a "solar radiation risk" (which would typically imply a hardware radiation susceptibility issue). Perhaps the software update comes in the form of new EEPROMs, something like that?

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Re:Airbus grounds A320 aircraft amid solar radiation risk by MarkusQ on Friday November 28, 2025 @04:53PM (#46083103)

Good point. Digging through the links (eight or nine deep) you eventually come to the actual directive:

https://ad.easa.europa.eu/blob/EASA_AD_2025_0268_E.pdf/EAD_2...

It looks like the fix it to replace the elevator aileron computer (ELAC), which sounds like a hardware fix, not a software update rollback. But that sort of detail often doesn't survive repeated rounds of journalism.

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Re:Airbus grounds A320 aircraft amid solar radiation risk by JohannMac on Friday November 28, 2025 @05:01PM (#46083171)

I think that depends on the given aircraft’s configuration. Some it’s just a software change (revert to older version I think).

There are two of those units in each aircraft.

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Re:Airbus grounds A320 aircraft amid solar radiation risk by dboreham on Friday November 28, 2025 @05:35PM (#46083414)

Still therefore confused how software knows about photons originating in the sun.

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Re:Airbus grounds A320 aircraft amid solar radiation risk by thesh4d0w on Friday November 28, 2025 @07:58PM (#46084307)

Probably more about how it handles data corruption and makes it not drop the nose for a few seconds when it sees it.

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