Originally Posted by
1985
NAS didn't fail. If it had then Scottish and TC would have also have broken. It was part of the NERC kit in LAC that failed. Which is part of the 1990s software.
I would guess it was the interface to NAS Host from that NERC (New En-Route Centre) kit that was the problem sending some unexpected broken message, one of a set that cannot be rejected or referred rejected.
But let's wait and see. Although it would be interesting to be there working it out, I would expect that all the system engineers already know precisely what happened
and who wrote the code responsible.
