Comment Re:Surprisingly (Score 4, Interesting) 142
(Is it really a crash risk? That I don't know.)
Potentially as one of the faults is "Display stops working". Whether that means it goes blank, or stops updating (i.e., frozen) is unclear.
Now, it's one reason why there is redundancy - if one display crashes, the PFD (primary flight display, i.e., flight instruments) can be reverted to the other screen (normally showing navigational information). If THAT doesn't work the PFD can be shown on the central displays (usually showing engine and other information), again, two of each.
And the co-pilot has another pair of displays as well that get their information from a redundant system, so 6 displays in total, which can get their information from two different independent sources.
Oh yeah, there's also basic backup instruments too.
Is it a problem? Yes. Is it fatal? Well, you have to be pretty damn unlucky to get all displays to lock up and the backup instruments as well. So a small chance, especially if the crew is inexperienced.