[Red Badger]

He was probably dead before he fell, when they opened the landing gear doors. Temp at 39000 feet is about 100° below zero........

[dfwgator]

Planes now start showing on the video screen what the outside temperature is, and yes, it’s pretty damn cold at that altitude.

[Vigilanteman]

I'm afraid you are right. Most stowaways don't realize this. They are just looking for the easiest exit from their socialist black-ruled paradise.

This is a tough way to exit.

[af_vet_rr]

He was probably dead before he fell, when they opened the landing gear doors. Temp at 39000 feet is about 100° below zero........

Reinhold Messner might be able to survive that high without supplemental oxygen and the appropriate acclimation and clothing, but the person we are talking about here probably wasn't even conscious, either from the drop in pressure, or the temperature. Most likely dead very quickly.

[Sherman Logan]

Temperature drop is generally considered to be 3.5 degrees per 1000 feet.

90F - (39 x 3.5) = -46.5. Cold enough, but survivable. I have camped out at -33. If you have the right equipment, which isn’t very likely for some random African.

I suspect an even bigger issue is the lack of air pressure and oxygen at that altitude. The bends would be very likely to get you, also.