Originally Posted by
vilas
Uplinker
Why would anyone do that? Because PF habitually will believe in the wrong speed displayed and could get in trouble.
During my "AF447" SIM experience (I was in RHS), when the nose dipped, I suspected the V Alpha Prot issue, so I applied the OEB procedure and switched off ADR 3 and 2. The TRE then leaned forwards and put ADR 2 back on and switched off ADR 1.
But of course, he knew which ADR's he had 'failed'. I didn't.