13. CABIN PRESS Panel (Air Cond/Press/Vent) Flashcards
How is the landing field elevation entered into the pressurization system in automatic, semi-automatic and manual modes?
• Automatic = FMGC (LDG ELEV must be in AUTO)
• Semi-automatic = by LDG ELEV selector button
• Manual = By selecting the MODE SEL to MAN and then using the MAN V/S CTL toggle switch
What does selecting the DITCHING pushbutton ON accomplish?
Closes all openings below the waterline Note: If you lose both cabin pressure systems 1 + 2, you have to manually close the outflow valve.
Avionics ventilation inlet and extract valves, the pack flow control valves, ram air inlet, FWD cargo outlet isolation valve. (Boat)
When would a pilot push the ditching pushbutton?
• When ditching
• When directed by the deicing checklist
How many controllers are in the pressurization system?
Two, only one is used at a time and they swap roles after each landing
How can a pilot manually switch controllers?
Switch MODE SEL to MAN for 10 seconds, then back to AUTO
What does an amber FAULT light in the MODE SEL pushbutton indicate?
Both automatic pressure controllers are faulty
What protects the airframe from excessive cabin differential pressure?
Two pressure relief valves