Originally Posted by
rally66
171is a gate at T1 in YYZ. Pilots do not use the terminal gate number when AC ground control tells them where to go on arrival. 171 is at the most southerly point of the international hammerhead. Probably gate E71 for pax inside.
But we're talking about the passenger side, so the outer numbers are irrelevant.
And the most southerly point of the hammerhead is not a domestic gate.