Originally Posted by
Beech Dude
Yes, a miserably hot airplane is no fun. Just curious...Do your guys' FOMs or SOPs give a temperature limitation for the avionics? If the cockpit gets above 95F for us; it's APU on and Cockpit pax on.
It isn't written down anywhere besides a general "passenger comfort." My technique (read, personal SOP) is whenever I see the ECS actual temp for the cockpit or anywhere in the cabin go above 25C (77F), it's time to crank the APU. Easy enough for me to remember and keeps complaints to a minimum.