The photo of Air Canada Airbus A319, flight 190 at Calgary International Airport on Thursday, Jan. 10, 2008 was taken after it suddenly jolted and suddenly dropped 4,000 feet mid-flight. Ten people were injured when the Airbus A319 lunged from side to side, sending passengers not buckled into their seat flying, and then plunged from its cruising altitude at 35,000 feet to 31,000 feet over the Rocky Mountains. The Rocky Mountains are visible in the background of the plane. The pilot was able to re-gain control after about 10 or 15 seconds, but passengers had the scare of a lifetime.
Air Canada has plans to compensate passengers aboard the terrifying flight in which a jet plunged thousands of feet before making an emergency landing in Calgary. The response of emergency crews in calgary was praised as a "Textbook response". You can dig through the plane turbulence incident in this Google News collection.