topla abicim
During Un.Speed ADR Cx Proc you aware that your all adr are wrong
You have to turn 2 of them off (IF THERE IS NO BUSS)
My question is which one should remain?
As I know,
If you keep ADR1 you can maintain XPDR/ATC1 and GPWS
If you keep ADR2 you can maintain XPDR2 and NW/STR
If you keep ADR3 you can use you LDG GEAR otherwise GRAVITY
The whole discussion has gone on the wrong track. Your first condition was all ADRs are wrong. So you keep one only for stall warning. After that you are treating that one as good one. No this one is also bad so the three options you mention are really not available. You will land not as dual ADR fail procedure but triple ADR fail. So the gear is lowered by gravity anyway. GPWS if available with faulty ADR1 you will use it only to your peril. And triple ADR fail procedure doesn't say NW steering as inop. You will have to depressurise the aircraft manually because faulty ADR is not going to do it.