http://flightaware.com/live/flight/CJC9491
My mom was on this continental Saab. the flight was delayed about hour and half on the ground. then when they finally took off, she says immediately the cabin got very hot, and the flight attendant told them “not to freak out” and to close their air vents. the plan immediately turned around and landed. Mom says they were people praying and crying on the plane.