It's often hotter on the flight deck than in E zone (the cheap seats at the back)
We normally run all 3 packs. Recently, advice has been given to start to cool the cabins a little more at about 40mins to landing, especially if the destination is a hot one. This helps to keep the cabin cooler during the turnround.
Helimutt, you would find the same problem on anyone's -400s, so perhaps you'd better go caravanning or boating at home next year
