[phire]

> and actually hitting the emergency pressure dump control

Wait, is there an emergency pressure dump control?

I kind of just assumed turning off bleed air would be the only option, and I would have assumed that turning off bleed air would complete depressurisation within a few min.

[TylerE]

Yes. You’d use it in the case of something like a fire where you need to get the smoke out NOW

Here’s what it looks like on a 737: http://www.b737.org.uk/images/cpcspanel.jpg

The switch is the guarded toggle a bit left of center on the bottom, next to the two round gauges.