APU restrictons
I had the misfortune to be positioned on jet 2 the other day when the OAT was 25c . The inside of the aircraft was unbearable.If they are waiting for the OAT to be reported as 31c , which they may well miss , the cabin temp will be pushing 40c before you know it with 148 pax.
Despite my protests , nothing was done. One of these days they will have a medically - weak pax on board , and Health and Safety will get involved. It is also extremely dodgy for flight crew to get too hot and expect to operate normally shortly thereafter.
The CAA should also have a word.