HYD Panel Flashcards Preview

SPIRIT AIRLINES - A320 (Updated monthly 2023) > HYD Panel > Flashcards

Flashcards in HYD Panel Deck (14)
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1
Q

What are the three HYD systems called?

A

 GREEN, BLUE and YELLOW Systems

2
Q

How is each system powered?

A
  •  GREEN – engine driven
  •  BLUE – electrically driven
  •  YELLOW – engine or electrically driven
3
Q

When does the BLUE pump normally operate?

A

 After the first engine is started

4
Q

If the BLUE system lost pressure, how would pressure be restored?

A

The RAT must be deployed. It does not deploy automatically upon BLUE system loss of pressure, so it must be manually deployed with the RAT MAN ON pushbutton.

5
Q

What can be done to correct low ACUM PRESS indication?

A

On the ground, coordinate with personnel and turn on the beacon and YELLOW ELEC pump

6
Q

With no HYD system power, how can the FWD CARGO door be opened?

A

 By using a hand pump

7
Q

What causes the PTU to operate in if selected in AUTO?

A
  • Differential pressure of 500 psi between GREEN and YELLOW systems
  •  After first engine start and until second engine starts, unless inhibited.
8
Q

When is the PTU inhibited?

A
  •  On the ground with master switches split and either the nose wheel steering disconnected or the parking brake ON
  •  For 40 seconds after cargo door is operate
9
Q

What are some users of the GREEN system?

A
  •  Landing gear
  •  Normal brakes
  •  Slats and flaps
  •  ENG 1 thrust reverser
10
Q

What are some users of the BLUE system?

A
  •  Emergency generator

-  Slats

11
Q

What are some users of the YELLOW system?

A
  •  Flaps
  •  Nose wheel steering
  • Alternate brakes
12
Q

What do the priority valves do in the HYD systems?

A

Removes hydraulic power from the heavy users and protects the flight controls.

13
Q

What would cause a FAULT light in the ENG 1 pump?

A
  •  Pump low pressure
  •  Over temp in reservoir
  •  Low air pressure in reservoir
  •  Low quantity
14
Q

If the FAULT light illuminated in the ENG 1 pump, what would identify the specific reason for the FAULT?

A

 ECAM will display the reason