Originally Posted by
Check Airman
I suppose my question is, why wouldn’t you deselect it?
Leaving that switch selected would be a bit like deselecting the engine generators after shutdown…
To be honest I believe everyone still deselects it, including myself, but that’s just to be aware of the changes going on.
It’s a bit like doing the Preliminary takeoff performance computation during the preliminary cockpit preparation. It’s SOP to do it on an A319 with 30 pax out of a 4500m runway as it is on a fully loaded A350 😄
Procedure harmonization across different types/variants does help a lot indeed, especially when flying MFF, the down sides are that some flows coming from the biggies are relatively less important on the narrow body family.