Hydraulic Panel Flashcards
HYDRAULIC PANEL
Q: Can the aircraft be flown with a loss of all hydraulic systems?
Ref: (FOM VOL. III-DSC-27-10-10)
No – you must have at least one
HYDRAULIC PANEL
Q: What occurs when you press the RAT MAN ON pushbutton?
Ref: (FOM VOL. III-DSC-29-20)
The RAT extends
HYDRAULIC PANEL
Q: Does the PTU transfer hydraulic fluid?
Ref: (FOM VOL. III-DSC-29-10-10)
No
HYDRAULIC PANEL
Q: How many hydraulic pumps are in the GREEN system?
Ref: (FOM VOL. III-DSC-29-10-20)
- 1 Engine
- 1 PTU
HYDRAULIC PANEL
Q: How many hydraulic pumps are in the BLUE system?
Ref: (FOM VOL. III-DSC-29-10-20)
- 1 Electric
- 1 RAT
HYDRAULIC PANEL
Q: How many hydraulic pumps are in the YELLOW system?
Ref: (FOM VOL. III-DSC-29-10-20)
- 1 Engine
- 1 Electric
- 1 PTU
- 1 Hand pump
HYDRAULIC PANEL
Q: When does the BLUE ELEC PUMP operate?
Ref: (FOM VOL. III-DSC-29-20)
- 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
HYDRAULIC PANEL
Q: What is normal system hydraulic pressure?
Ref: (FOM VOL. III-DSC-29-10-10)
3000 PSI
HYDRAULIC PANEL
Q: Does the RAT automatically deploy with the loss of BLUE hydraulic pressure?
Ref: (FOM VOL. III-DSC-29-10-20)
No, it must be deployed manually by the RAT MAN ON pushbutton
HYDRAULIC PANEL
Q: If the ACCU PRESS indicator is low and an external walkaround is to be completed, what should you do?
Ref: (FOM VOL. II Section 3.05)
Obtain ground clearance then turn ON the YELLOW ELEC PUMP to pressurize the accumulator
HYDRAULIC PANEL
Q: What condition will cause the PTU to operate when the pushbutton is in AUTO?
Ref: (FOM VOL. III-DSC-29-20)
A difference of 500 PSI between GREEN and YELLOW hydraulic systems.
HYDRAULIC PANEL
Q: When is the PTU inhibited?
Ref: (FOM VOL. III-DSC-32-10-30, FOM VOL. III-DSC-29-20)
- PTU pushbutton OFF
- First engine start
- Parking brake is 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)
HYDRAULIC PANEL
Q: If the ECAM actions lead you to turn OFF the PTU for a Reservoir Overheat, will the FAULT light go out?
Ref: (FOM VOL. III-DSC-29-20)
No, not until the overheat subsides
HYDRAULIC PANEL
Q: If the FAULT light in the PTU pushbutton is ON, are there any other indications on the HYD Panel?
Ref: (FOM VOL. III-DSC-29-20)
Yes – FAULT light illuminated in the respective ENG PUMP pushbutton
HYDRAULIC PANEL
Q: Can the YELLOW ELEC PUMP run the PTU?
Ref: (FOM VOL. III-DSC-29-10-20)
Yes
HYDRAULIC PANEL
Q: Name several items that run from only the GREEN system.
Ref: (FOM VOL. III-DSC-29-10-30)
- Landing gear
- Normal brakes
- Slats and flaps
- Engine 1 reverser
HYDRAULIC PANEL
Q: Name several items that run from only the YELLOW system.
Ref: (FOM VOL. III-DSC-29-10-30)
- Nosewheel steering
- Alternate brakes
- Parking brake
- Cargo doors
- Engine 2 reverser
HYDRAULIC PANEL
Q: List several items that are powered by the BLUE system.
Ref: (FOM VOL. III-DSC-29-10-30)
- Slats
- Emergency generator
HYDRAULIC PANEL
Q: What does an amber FAULT light in the PTU pushbutton indicate?
Ref: (FOM VOL. III-DSC-29-20)
- “LOL”
- L - Low quantity in the reservoir
- O - Overtemp in reservoir
- L - Low air pressure in the reservoir
HYDRAULIC PANEL
Q: What does an amber FAULT light in the ENG PUMP pushbutton indicate (POLL)?
Ref: (FOM VOL. III-DSC-29-20)
- P - Pump pressure low
- O - Overtemp in reservoir
- L - Low air pressure in the reservoir
- L - Low quantity in the reservoir
HYDRAULIC PANEL
Q: What does a FAULT light in the BLUE or YELLOW ELEC PUMP pushbutton indicate?
Ref: (FOM VOL. III-DSC-29-20)
- “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
HYDRAULIC PANEL
Q: Where are the HYD FIRE SHUTOFF VALVES located?
Ref: (FOM VOL. III-DSC-29-10-20)
Between the respective reservoir and ENG pump
HYDRAULIC PANEL
Q: What is the function of the hydraulic priority valves?
Ref: (FOM VOL. III-DSC-29-10-20)
Hydraulic power to the flaps, slats, landing gear, and emergency generator is cut off if pressure drops below a predetermined value (high demand items)
HYDRAULIC PANEL
Q: What is the purpose of the hand pump?
Ref: (FOM VOL. III-DSC-29-10-20)
To provide Yellow hydraulic pressure for cargo door operation
