[SystemSafety] Technical information on Airbus A320 recall?

[David MENTRÉ]

Dear all,

Thanks a lot for your comments, quite interesting.

Le 01/12/2025 à 11:18, Dewi Daniels a écrit :
> we were also required to design the software so that we kept three 
> copies of critical data (one of the copies was the one's complement of 
> the other two). This meant that we were able to detect an SEU 
> corrupting one of the copies and restore the correct value from one of 
> the other two copies.

Was there any requirement to put the three copies in different parts 
(banks?) of the RAM? Any link to hardware organization? Or the three 
copies were just next to each others, e.g. in the same data structure: { 
int copy1, copy2, copy3; } and so probably next to each others in RAM?

Best regards,
david