Originally Posted by skyslug

I would think summer time, inadequate cooling, no presence of ground conditioned air, full plane...that would and could induce illness in many people especially when the temps in that tube get above 33C and climbing. Add to it the constant high humidity and the "feels like" temp would be horrendous and I would suspect life threatening to some people.

Why is it the news puts out warnings on hot days with high humidity for people to take it easy and stay inside lest they overheat or suffer heat related consequences....

To me that is reason enough to refuse a plane. Would you please be so kind as to find me another one with a working APU...simple!