CABIN PRESS Panel Flashcards
What does the DITCHING pb do?
o Closes all valves below the waterline. C – Cargo Compartment Isolation Valves A – Avionics ventilation (inlet/extract valves) R – Ram air inlet P – Pack FCV’s O – Outflow valve (if in AUTO)
Can the pilot control the outflow valve?
Yes, select MAN on the MODE SEL and use the MAN V/S CTL switch.
How many auto pressure controllers?
o Two: Only one is used at a time and they swap roles after each landing.
How do you manually switch controllers?
o Switch MODE SEL to MAN for 10 seconds, then back to AUTO.
What does an amber FAULT light in the MODE SEL pb indicate?
o Both automatic pressure controllers are faulty.
The LDG ELEV selector in the AUTO position does what?
o The pressurization system uses the FMGS data to construct an optimized
pressurization schedule.
Where does the pressurization system obtain the landing elevation from?
o FMGC database
When out of the AUTO position, what is different?
o The pressurization system uses the manually selected landing elevation.