I'm curious as to how many operators out there turn the Hyd A pumps 'off' for pushback on the 737NG and MAX.
At my previous operator (737-800) we had all Elec and ED hyd pumps 'on' for pushback -- given the nose gear steering lockout pin, having the pumps on seemd a non-issue (also Boeing procedures).
At my current outfit (737Max), the sop is to turn both 'A' pumps off for pushback.
thoughts on this? Unnecessary? Surely this would result in excessive wear on the EDP?
This outfit used to fly the -200 many years ago, perhaps just cut and pasted procedures. Thoughts?