Originally Posted by
ZeBedie
Doesn't every A320 pilot set QNH on his altimeter in the cruise when the ATIS is received, before reverting straight back to STD? Then when ATC later tells you to go QNH, the correct value should already be displayed?
We do this too, it is procedure, but I guess not coming from Airbus FCOM, it is just a company SOP for both crew members. We also have to compare the QNH given by approach control when descending to an altitude with an alternative source, typically ATIS. On non-precision approaches we again have to confirm QNH with tower.
I still think the machine should do this automatically by comparing QNH on the perf approach page with the QNH set on the FCU once on QNH.