Not recently, but once last year on an SR ORD-ZRH flight. Somebody complained, and it was adjusted immediately. I think they can adjust the temperature per cabin, since the FA said it'd only affect Business Class.
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by huegli:
Especially on night flights, it seems like they turn up the heat in order to make it easier for people to sleep. But I just start to sweat and sleep is gone....
Never had a problem on European flights though.</font>
I agree for the first part.
We had a lot a trouble with Turkish Airline flights from GVA to IST. Almost on all flights and even in C-class.
One person even got sick because of the heat and the cabin people did quite nothing!!