Hydrualic Panel Flashcards
Can the aircraft be flown with a loss of all hydraulic systems?
No, you must have at least one
What occurs when you press the RAT MAN ON pushbutton?
The RAT extends
Does the PTU transfer hydraulic fluid?
No
How many hydraulic pumps are in the GREEN system?
1 Engine
1 PTU
How many hydraulic pumps are in the BLUE system?
1 Electric
1 RAT
How many hydraulic pumps are in the YELLOW system?
1 Engine
1 Electric
1 PTU
1 Hand pump
When does the BLUE ELEC PUMP operate?
After the first engine is started
In flight
If the BLUE PUMP OVRD pb on the MAINTENANCE panel has been pressed with no engine running
What is normal system hydraulic pressure?
3000 PSI
Does the RAT automatically deploy with the loss of BLUE hydraulic pressure?
No, it must be deployed manually by the RAT MAN ON pushbutton
If the ACCU PRESS indicator is low and an external walk around is to be completed, what should you do?
Obtain ground clearance then turn ON the YELLOW ELEC PUMP to pressurize the accumulator
What condition will cause the PTU to operate when the pushbutton is in AUTO?
A difference of 500 PSI between GREEN and YELLOW hydraulic systems
When is the PTU inhibited?
PTU pushbutton OFF
First engine start
Parking brake SET and only one ENG MASTER switch is ON
NWS in towing position and parking brake RELEASED
Cargo door operation (PTU is also inhibited for 40 seconds after the end of cargo door operation)
If the ECAM actions lead you to turn OFF the PTU for a reservoir overheat, will the FAULT light go out?
No, not until the overheat subsides
If the FAULT light in the PTU pushbutton is ON, are there any other indications on the HYD panel?
Yes, FAULT light illuminated in the respective ENG PUMP pushbutton
Can the YELLOW ELEC PUMP run the PTU?
Yes
Name several items that run from only the GREEN system.
Landing gear
Normal brakes
Slats and flaps
Engine 1 reverser
Name several items that run from only the YELLOW system.
Nosewheel steering
Alternate brakes
Parking brake
Cargo doors
Engine 2 reverser
List several items that are powered by the BLUE system.
Slats
Emergency generator
What does an amber FAULT light in the PTU pushbutton indicate?
(OLL)
O - Overtemp in reservoir
L - Low air pressure in the reservoir
L - Low quantity in the reservoir
What does an amber FAULT light in the ENG PUMP pushbutton indicate?
(POLL)
P - Pump pressure low
O - Overtemp in reservoir
L - Low air pressure in the reservoir
L - Low quantity in the reservoir
What does a FAULT light in the BLUE or YELLOW ELEC PUMP pushbutton indicate?
(POLLO)
P - Pump pressure low
O - Overtemp in reservoir
L - Low air pressure in the reservoir
L - Low quantity in the reservoir
O - Overheat of pump
Where are the HYD FIRE SHUTOFF VALVES located?
Between the respective reservoir and ENG pump
What is the function of the hydraulic priority valves?
Hydraulic power to the flaps, slats, landing gear, and emergency generator is cut off if pressure drops below a predetermined value (high demand items)
What is the purpose of the hand pump?
To provide Yellow hydraulic pressure for cargo door operation
