[msla]

Is there any plausible mechanism for Y2K bugs to cause planes to fall from the sky?

[LargoLasskhyfv]

Why not? From five years ago, on the most modern type:

https://www.theregister.com/2020/04/02/boeing_787_power_cycl...

Seems to be unrelated at first look, but considering the complexities of systems, and cascading failure modes?