Originally Posted by
SMT Member
Or maybe they were at an airport which bans the use of APU until 5/10 minutes prior to departure, for noise and pollution reasons. Or maybe the company has the same language in their SOP, as a money saving exercise.
Are you that captain?
This never is a problem if no ground aircon is supplied and the temps above 24/25 degrees. Even at the strictest airports they give you permission to cool the cabin once you explain your situation. Read your AOI pages, there's always a frequency or a phone number to call to ask for permission.