Originally Posted by Jet Man
I'm wondering why the CARGO FIRE NNC instructs you to switch one pack off (the later models turn one pack off and the other to high).
With the flaps up the other pack changes to high flow, but I am not sure why you want this.
Maybe the answer is obvious but I can't see it. Can anyone shed any light for me?
It must be done to force the Smoke Removal Mode !!!
The smoke removal mode opens the overboard exhaust valve to remove smoke from the EE compartments and flight compartment.