Originally Posted by
visibility3miles
If it has a serious bug, it's better to have the screens go blank than provide erroneous information.
What, ALL the screens? - leaving you with just the standby instruments and nothing else?
I disagree. A navigation problem alone should not blank the attitude, IAS, TAS, altitude, V/S, A/P status, A/THR status, N1, EGT, etc, etc. You should just get a red flag for; heading, G/S, wind vector, ILS, VOR, map, compass, course, or whichever Nav function is unavailable, or disagrees with the other side. The whole bloody screen shouldn’t blank, nor should the screens which don’t display any Nav info.