13. CABIN PRESS Panel (Air Cond/Press/Vent) Flashcards

1
Q

How is the landing field elevation entered into the pressurization system in automatic, semi-automatic and manual modes?

A

• 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

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2
Q

What does selecting the DITCHING pushbutton ON accomplish?

A

Closes all openings below the waterline Note: If you lose both cabin pressure systems 1 + 2, you have to manually close the outflow valve.

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3
Q

When would a pilot push the ditching pushbutton?

A

• When ditching

• When directed by the deicing checklist

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4
Q

How many controllers are in the pressurization system?

A

Two, only one is used at a time and they swap roles after each landing

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5
Q

How can a pilot manually switch controllers?

A

Switch MODE SEL to MAN for 10 seconds, then back to AUTO

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6
Q

What does an amber FAULT light in the MODE SEL pushbutton indicate?

A

Both automatic pressure controllers are faulty

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7
Q

What protects the airframe from excessive cabin differential pressure?

A

Two pressure relief valves

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