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Re: [LML] Re: Airspeed sensing switch: Pressurization
Paul pointed out the obvious: a door
with even 1 psi behind it is dangerous. (1 psi times 600 or
so? I don't have the measurements)
So I do buy the argument that at low throttle
settings, and under normal circumstances, you aren't going to have much residual
pressure in the cabin. But there are lots of possible failure modes
here: a) pressure controller malfunction b) pressure controller set way
below landing altitude c) exhaust valve is not operating correctly - not enough
cabin exchange rate. These may argue for the pressure switch
The suggestion I like the best is "check cabin
pressure before opening the door".
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