Here (737 classic, but this should apply to all airplanes, I guess), nobody seems to realize the need to check that the flight controls
return freely to (almost) center when released.
The Boeing manual says clearly: "Verify full travel, freedom of movement,
and controls return to center."
So, how do you perform this check while taxiing out?
Do you turn, let it go, push, let it go, pull, let it go........
or simply turn, push, pull and that's it?
