ATA 29: Hydraulics Flashcards
What are the three hydraulic systems and what is their pressure?
Three fully independent systems: Green, Blue, Yellow
Nominal pressure at 3000 psi
Describe the normal operation of the hydraulic system
- Three independent hydraulic systems: GREEN, BLUE, YELLOW.
- Each system supplied from its own hydraulic reservoir.
- Normal operating pressure is 3,000 PSI (2,500 PSI for the RAT).
- The system is monitored by the Hydraulic System Monitoring Unit (HSMU).
Describe the abnormal operation of the hydraulic system with Engine Failure (1)
The GREEN electrical pump runs automatically for 25 seconds when the landing gear lever is selected up.
Describe the abnormal operation of the hydraulic system with Engine Failure (2)
YELLOW electrical pump runs automatically when flaps are not retracted.
Describe the abnormal operation of the hydraulic system with a dual Engine Failure
In the event of both engine failure, RAT deployment is automatically controlled by the HSMU to pressurize the Green system.
Normal hydraulic power is provided by:
(a) Engine driven pumps for green and yellow, ELEC pump for blue
(b) Electric pumps for blue and yellow, engine driven pumps for green
(c) Engine driven pumps for green, blue and yellow
(c) Engine driven pumps for green, blue and yellow
An overheat is detected in YELLOW SYST reservoir, along with ECAM warning:
(a) Both yellow and green pump switches show FAULT
(b) Yellow pump switch shows BLANK
(c) Yellow pump switch shows FAULT
(c) Yellow pump switch shows FAULT
In flight with a dual engine failure, how is it possible to pressurize the green system?
(a) By the blue electric pump and interconnect valve
(b) By the green electric pump
(c) A pump driven by the ram air turbine (RAT)
(c) A pump driven by the ram air turbine (RAT)
Above what speed is the landing gear hydraulic supply automatically isolated:
a. 250 Knots.
b. 280 Knots
c. 260 Knots.
b. 280 Knots
The ENG 1 & ENG 2 Fire Shutoff Valves, are automatically closed by the HMSU in the event of:
a. Complete electrical failure.
b. Low fluid level in the Green and Blue reservoirs.
c. Low fluid level in the Green reservoir
c. Low fluid level in the Green reservoir
RAT RPM indication on the ECAM HYD page is available:
a. All the time.
b. When RAT RPM is greater than or equal to 3,000 RPM.
c. When RAT RPM is above 100 RPM.
b. When RAT RPM is greater than or equal to 3,000 RPM.
What condition would cause the Yellow System Leak Measurement valve on the overhead panel to automatically close (with the OFF light illuminated), to avoid inadvertent movement of the flight controls?
a. Whenever the Back Up Yaw Damper operates.
b. Whenever the Blue HYD electric pump is used to top up the brake accumulator.
c. Whenever a FWD or Aft cargo door is opened or closed.
c. Whenever a FWD or Aft cargo door is opened or closed.
What purpose does the hydraulic system accumulator serve?
a. It ensures adequate Brake pressure is available for Park Brake operation.
b. They ensure adequate system pressure is available for Cargo Door operation and Park Brake use.
c. They help maintain a constant pressure by covering transient demands during normal operation.
c. They help maintain a constant pressure by covering transient demands during normal operation.
Understand the control functions and indications on the HYD panel.
ELEC PUMP (ON) pb
- AUTO (green and yellow) (lights out) - Electric hydraulic pump runs ________:
- Green - With one engine ________ when the landing gear is selected UP (runs for _____ seconds).
- (to assist in gear retraction - not LOD)
- Yellow - Engine 2 ________ and flaps lever not at ________and ________ electric pump not running (runs until last engine shutdown).
- (To assist in flap retraction - not LOD)
- Yellow pump also runs ________ during cargo door operation.
- Green - With one engine ________ when the landing gear is selected UP (runs for _____ seconds).
- STBY (blue) (lights out) - Blue pump runs automatically with ENGINE _____ failure together with a ________ OR ________ fault. (to assist in rudder control -not LOD)
- ON - Illuminates blue if the respective electric pump is activated ______ or ______.
Understand the control functions and indications on the HYD panel.
ELEC PUMP (ON) pb
- AUTO (green and yellow) (lights out) - Electric hydraulic pump runs automatically:
- Green - With one engine inoperative when the landing gear is selected up (runs for 25 seconds).
- Yellow - Engine 2 failed and flaps lever not at zero and green electric pump not running (runs until last engine shutdown).
- Yellow pump also runs automatically during cargo door operation.
- STBY (blue) (lights out) - Blue pump runs automatically with engine 1 failure together with a PRIM1 or PRIM3 fault.
- ON - Illuminates blue if the respective electric pump is activated automatically or manually.
Understand the control functions and indications on the HYD panel.
ELEC PUMP pb
- Lights out - Manual and automatic operation of the respective pump is ________.
- OFF - Manual and automatic operation of the respective pump is ________.
- FAULT - Illuminates amber if any of the following conditions are met:
- The reservoir ________ level is ________.
- Reservoir ________ pressure is low.
- Pump ________ is low.
- The reservoir _______._
- The ________ overheats.
Understand the control functions and indications on the HYD panel.
ELEC PUMP pb
- Lights out - Manual and automatic operation of the respective pump is available.
- OFF - Manual and automatic operation of the respective pump is inhibited.
- FAULT - Illuminates amber if any of the following conditions are met:
- The reservoir fluid level is low.
- Reservoir air pressure is low.
- Pump pressure is low.
- The reservoir overheats.
- The pump overheats.
Understand the control functions and indications on the HYD panel.
ENG 1(2) pb
- ON (lights out) - The ________ pressurises the system when the ________ is running.
- OFF - The pump is ________. Hydraulic power generation ________.
- FAULT - Illuminates amber if any of the following conditions are met:
- The reservoir ________ level is _______._
- Reservoir ______ ______ is low.
- The reservoir _______._
- Pump ________ is low (inhibited on the ground when the engine is ________).
The FAULT light extinguishes when the pb is selected ________.
- However, in the case of a ______ ______, the FAULT light will remain illuminated as long as the overheat condition exists.
Understand the control functions and indications on the HYD panel.
ENG 1(2) pb
- ON (lights out) - The pump pressurises the system when the engine is running.
- OFF - The pump is depressurised. Hydraulic power generation stops.
- FAULT - Illuminates amber if any of the following conditions are met:
- The reservoir fluid level is low.
- Reservoir air pressure is low.
- The reservoir overheats.
- Pump pressure is low (inhibited on the ground when the engine is stopped).
The FAULT light extinguishes when the pb is selected OFF.
- However, in the case of a reservoir overheat, the FAULT light will remain illuminated as long as the overheat condition exists.
Understand the control functions and indications on the HYD panel.
RAT MAN ON Pb
- Pushed (guard lifted) - Extends the RAT ________._
Understand the control functions and indications on the HYD panel.
RAT MAN ON Pb
- Pushed (guard lifted) - Extends the RAT manually.
Discuss normal and abnormal indications on the ECAM HYD page.
1. Distribution Triangles
- Displayed in OPEN green when hydraulic ________ rises above a predetermined pressure.
- Becomes amber if the pressure in the respective system ________ below a predetermined pressure.
*Discuss normal and abnormal indications on the ECAM HYD page.
*1. Distribution Triangles
- Displayed in OPEN green when hydraulic pressure rises above 1750 PSI
- Becomes OPEN amber if the pressure in the respective system drops below 1450 PSI
Discuss normal and abnormal indications on the ECAM HYD page.
System Labels
- Displayed in _______ when hydraulic pressure _______ above a predetermined pressure.
- Becomes _______ if the pressure in the respective system ________ below a predetermined pressure.
Discuss normal and abnormal indications on the ECAM HYD page.
System Labels
- Displayed in white when hydraulic pressure rises above a predetermined pressure.
- Becomes amber if the pressure in the respective system decreases below a predetermined pressure.
Discuss normal and abnormal indications on the ECAM HYD page.
Hydraulic Pressures
- Displayed in green if the pressure is ___ or _____ a predetermined pressure, or
- amber if it is ________.
An exception to these presentations is when the________ electric pump is running during cargo door operation.
- The hydraulic pressure indication will be normal (green) while the pump is ________;
- however, the YELLOW system ________ and distribution ________ will be displayed in amber.
- This indicates that the yellow system is only ________ powered.
Discuss normal and abnormal indications on the ECAM HYD page.
Hydraulic Pressures
- Displayed in green if the pressure is at or above a predetermined pressure, or
- amber if it is below.
An exception to these presentations is when the yellow electric pump is running during cargo door operation.
- The hydraulic pressure indication will be normal (green) while the pump is running;
- however, the YELLOW system label and distribution triangle will be displayed in amber.
- This indicates that the yellow system is only partially powered.
Discuss normal and abnormal indications on the ECAM HYD page.
Electric Pump Indications
The triangle’s fill and color indicate the status of the pump:
- Open white triangle - The pump is not ________ to run.
- Solid green triangle - The pump is ________.
- Solid amber triangle - The pump is _____ but has ________ pressure.
- Open amber triangle - The pump is selected ________
Discuss normal and abnormal indications on the ECAM HYD page.
Electric Pump Indications
The triangle’s fill and color indicate the status of the pump:
- Open white triangle - The pump is not commanded to run.
- Solid green triangle - The pump is ON.
- Solid amber triangle - The pump is ON but has low pressure.
- Open amber triangle - The pump is selected OFF.
Discuss normal and abnormal indications on the ECAM HYD page.
Engine Driven Pump Indications
- In-line GREEN - The respective ENG 1(2) pb is on and hydraulic pressure is _______._
- Cross-line AMBER - The respective ENG 1(2) pb is ______.
- AMBER LO - The respective ENG 1(2) pb is ON and hydraulic pressure is ________.
Discuss normal and abnormal indications on the ECAM HYD page.
Engine Driven Pump Indications
- In-line GREEN - The respective ENG 1(2) pb is on and hydraulic pressure is normal.
- Cross-line AMBER - The respective ENG 1(2) pb is OFF.
- AMBER LO - The respective ENG 1(2) pb is ON and hydraulic pressure is low.
Discuss normal and abnormal indications on the ECAM HYD page.
Fire Shutoff Valves
* In-line GREEN - Fire shutoff valve is ________.
* Cross-line AMBER - Fire shutoff valve is fully ________.
Discuss normal and abnormal indications on the ECAM HYD page.
Fire Shutoff Valves
* In-line GREEN - Fire shutoff valve is open.
* Cross-line AMBER - Fire shutoff valve is fully closed.
(Number 5)
Discuss normal and abnormal indications on the ECAM HYD page.
Reservoir Indications
- The reservoir fill range is indicated in ________.
- The normal fill level is indicated by a ______ ______ that is corrected for changes in fluid _______._
- If temperature ________ is lost, the box changes to _______._
Discuss normal and abnormal indications on the ECAM HYD page.
Reservoir Indications
- The reservoir fill range is indicated in white.
- The normal fill level is indicated by a green box that is corrected for changes in fluid temperature.
- If temperature correction is lost, the box changes to white.
Discuss normal and abnormal indications on the ECAM HYD page.
Reservoir Indications
The low fill level is indicated by an ______ ______.
If the fluid level falls to the low level:
- The fluid level pointer changes from ______ to ______ .
- The reservoir fill range changes from ______ to ______.
Discuss normal and abnormal indications on the ECAM HYD page.
Reservoir Indications
The low fill level is indicated by an amber box.
If the fluid level falls to the low level:
- The fluid level pointer changes from green to amber.
- The reservoir fill range changes from white to amber.
Discuss normal and abnormal indications on the ECAM HYD page.
Reservoir Indications
- The green fluid level indication and normal fill level increase slightly when the ______ ______ is ______.
- A white mark on the ________ system’s reservoir fill range indicates the ______ fill level for ______ ______ ______.
- If the fluid level is below the minimum fill level, the single white mark changes to ___ ______ marks.
Discuss normal and abnormal indications on the ECAM HYD page.
Reservoir Indications
- The green fluid level indication and normal fill level increase slightly when the landing gear is retracted.
- A white mark on the green system’s reservoir fill range indicates the minimum fill level for landing gear extension.
- If the fluid level is below the minimum fill level, the single white mark changes to two amber marks.
Discuss normal and abnormal indications on the ECAM HYD page.
OVHT
- OVHT is displayed in amber next to the affected reservoir if a reservoir ________ is detected.
Discuss normal and abnormal indications on the ECAM HYD page.
OVHT
- OVHT is displayed in amber next to the affected reservoir if a reservoir overheat is detected.
Discuss normal and abnormal indications on the ECAM HYD page.
LO AIR PRESS
- LO AIR PRESS is displayed in amber next to the affected reservoir if reservoir _______ air pressure is detected.
Discuss normal and abnormal indications on the ECAM HYD page.
LO AIR PRESS
- LO AIR PRESS is displayed in amber next to the affected reservoir if reservoir low air pressure is detected.
Discuss normal and abnormal indications on the ECAM HYD page.
RAT
- The RPM is displayed if the RAT is extended and its RPM is greater than [______].
- The table below outlines the different RAT indications on the HYD page.
Discuss normal and abnormal indications on the ECAM HYD page.
RAT
- The RPM is displayed if the RAT is extended and its RPM is greater than [100].
- The table below outlines the different RAT indications on the HYD page.
Discuss normal and abnormal indications on the ECAM HYD page.
Engine Labels
* Normally _____ but becomes _____ when the _____ of the corresponding engine is ______ ** ______.**
Discuss normal and abnormal indications on the ECAM HYD page.
Engine Labels
* Normally white but becomes amber when N2 of the corresponding engine is below idle.
Describe the hydraulic system design.
- Hydraulic power is provided by _______ independent hydraulic systems.
- They are designated _____, _____ and _____.
- Transfer of fluid or pressure from one system to another is ____ ________.
Describe the hydraulic system design.
- Hydraulic power is provided by three independent hydraulic systems.
- They are designated green, blue, and yellow.
- Transfer of fluid or pressure from one system to another is not possible.
Describe the hydraulic system design.
Each hydraulic system has its own ___________\_
Fluid is drawn from the reservoirs and supplied to hydraulic distribution lines by _________ engine driven hydraulic pumps.
Describe the hydraulic system design.
Each hydraulic system has its own reservoir.
Fluid is drawn from the reservoirs and supplied to hydraulic distribution lines by four engine driven hydraulic pumps.
Describe the hydraulic system design.
- Fluid drawn from the ____** passes through engine **____ _____ valves before being supplied to the pumps.
- Each engine driven pump has its _____ fire shutoff valve.
Describe the hydraulic system design.
- Fluid drawn from the reservoirs passes through engine fire shutoff valves before being supplied to the pumps.
- Each engine driven pump has its own fire shutoff valve.
Describe the hydraulic system design.
- The blue engine hydraulic pump is driven by _Engine ____._
- The yellow engine hydraulic pump is driven by _Engine ____._
- Engine #1 and #2 drive individual hydraulic pumps for the ________ system.
- Normal system pressure is ________ psi.
Describe the hydraulic system design.
- The blue Engine hydraulic pump is driven by Engine #1.
- The yellow Engine hydraulic pump is driven by Engine #2.
- Engine #1 and #2 drive individual hydraulic pumps for the green system.
- Normal system pressure is 3000 psi.
Describe the hydraulic system design.
Electric pumps in each system can provide ________ pressure, but at less ________ than engine driven pumps.
In flight they are only intended to assist after an engine failure in:
- ________ of gear (________ system),
- ________ of flaps (________ system),
- or ________ control (________ system) .
A hand pump is provided in the yellow system to allow for ______ ______ operation when electrical power is ____ ______.
Describe the hydraulic system design.
Electric pumps in each system can provide normal pressure, but at less volume than engine driven pumps.
In flight they are only intended to assist after an engine failure in:
- retraction of gear (green),
- retraction of flaps (yellow),
- or rudder control (blue) .
A hand pump is provided in the yellow system to allow for cargo door operation when electrical power is not available.
Describe the hydraulic system design
A pump driven by a Ram Air Turbine (RAT) can pressurise the ________ system in case of an emergency.
- The RAT can be extended ______ or ______.
- The RAT is extended manually by pushing the red, guarded ______ pb on the HYD panel.
In flight, the RAT extends automatically in case of either:
- A ________engine failure
- A ______ and ______, or ______ and ______ reservoir low level.
The RAT may be able to continue supplying hydraulic power using the small quantity of fluid remaining in the ________ system after automatic ______ ______ valve closure.
Describe the hydraulic system design
A pump driven by a Ram Air Turbine (RAT) can pressurise the green system in case of an emergency.
- The RAT can be extended manually or automatically.
- The RAT is extended manually by pushing the red, guarded RAT MAN ON pb on the HYD panel.
In flight, the RAT extends automatically in case of either:
- A dual engine failure
- A green and blue, or green and yellow reservoir low level.
The RAT may be able to continue supplying hydraulic power using the small quantity of fluid remaining in the green system after automatic fire shutoff valve closure.
Describe the effects of low fluid in each of the respective hydraulic reservoirs.
If the fluid level falls to the low level:
- The fluid level pointer changes from ______ to ______.
- The reservoir ________ range changes from ________ to amber.
- An ______ caution is generated.
- The ________ SD page is displayed.
Describe the effects of low fluid in each of the respective hydraulic reservoirs.
If the fluid level falls to the low level:
- The fluid level pointer changes from green to amber.
- The reservoir fill range changes from white to amber.
- An ECAM caution is generated.
- The HYD SD page is displayed.
Describe the effects of low fluid in each of the respective hydraulic reservoirs.
- The green system fill level indication provides information unique to the green system.
- A ________ mark is displayed on the green system’s reservoir fill range to indicate the ________ fill level for landing gear _________.
- If the fluid level is below the minimum fill level, the single white mark changes to ________ amber marks.
The associated ECAM steps will direct you to turn off the associated _______ _______ pumps and _______ pumps.
Describe the effects of low fluid in each of the respective hydraulic reservoirs.
- The green system fill level indication provides information unique to the green system.
- A white mark is displayed on the green system’s reservoir fill range to indicate the minimum fill level for landing gear extension.
- If the fluid level is below the minimum fill level, the single white mark changes to two amber marks.
The associated ECAM steps will direct you to turn off the associated engine driven pumps and electric pumps.
Understand the control functions and indications on the HYD panel.
ELEC PUMP (ON) pb
- AUTO (green and yellow) (lights out) - Electric hydraulic pump runs ________:
- Green - With one engine ________ when the landing gear is selected UP (runs for _____ seconds).
- (to assist in gear retraction - not LOD)
- Yellow - Engine 2 ________ and flaps lever not at ________and ________ electric pump not running (runs until last engine shutdown).
- (To assist in flap retraction - not LOD)
- Yellow pump also runs ________ during cargo door operation.
- Green - With one engine ________ when the landing gear is selected UP (runs for _____ seconds).
- STBY (blue) (lights out) - Blue pump runs automatically with ENGINE _____ failure together with a ________ OR ________ fault. (to assist in rudder control -not LOD)
- ON - Illuminates blue if the respective electric pump is activated ______ or ______.
Understand the control functions and indications on the HYD panel.
ELEC PUMP (ON) pb
- AUTO (green and yellow) (lights out) - Electric hydraulic pump runs automatically:
- Green - With one engine inoperative when the landing gear is selected up (runs for 25 seconds).
- Yellow - Engine 2 failed and flaps lever not at zero and green electric pump not running (runs until last engine shutdown).
- Yellow pump also runs automatically during cargo door operation.
- STBY (blue) (lights out) - Blue pump runs automatically with engine 1 failure together with a PRIM1 or PRIM3 fault.
- ON - Illuminates blue if the respective electric pump is activated automatically or manually.
Discuss normal and abnormal indications on the ECAM HYD page.
1. Distribution Triangles
- Displayed in OPEN green when hydraulic ________ rises above a predetermined pressure.
- Becomes amber if the pressure in the respective system ________ below a predetermined pressure.
*Discuss normal and abnormal indications on the ECAM HYD page.
*1. Distribution Triangles
- Displayed in OPEN green when hydraulic pressure rises above 1750 PSI
- Becomes OPEN amber if the pressure in the respective system drops below 1450 PSI
Discuss normal and abnormal indications on the ECAM HYD page.
System Labels
- Displayed in _______ when hydraulic pressure _______ above a predetermined pressure.
- Becomes _______ if the pressure in the respective system ________ below a predetermined pressure.
Discuss normal and abnormal indications on the ECAM HYD page.
System Labels
- Displayed in white when hydraulic pressure rises above a predetermined pressure.
- Becomes amber if the pressure in the respective system decreases below a predetermined pressure.
Discuss normal and abnormal indications on the ECAM HYD page.
Hydraulic Pressures
- Displayed in green if the pressure is ___ or _____ a predetermined pressure, or
- amber if it is ________.
An exception to these presentations is when the________ electric pump is running during cargo door operation.
- The hydraulic pressure indication will be normal (green) while the pump is ________;
- however, the YELLOW system ________ and distribution ________ will be displayed in amber.
- This indicates that the yellow system is only ________ powered.
Discuss normal and abnormal indications on the ECAM HYD page.
Hydraulic Pressures
- Displayed in green if the pressure is at or above a predetermined pressure, or
- amber if it is below.
An exception to these presentations is when the yellow electric pump is running during cargo door operation.
- The hydraulic pressure indication will be normal (green) while the pump is running;
- however, the YELLOW system label and distribution triangle will be displayed in amber.
- This indicates that the yellow system is only partially powered.
Discuss normal and abnormal indications on the ECAM HYD page.
Electric Pump Indications
The triangle’s fill and color indicate the status of the pump:
- Open white triangle - The pump is not ________ to run.
- Solid green triangle - The pump is ________.
- Solid amber triangle - The pump is _____ but has ________ pressure.
- Open amber triangle - The pump is selected ________
Discuss normal and abnormal indications on the ECAM HYD page.
Electric Pump Indications
The triangle’s fill and color indicate the status of the pump:
- Open white triangle - The pump is not commanded to run.
- Solid green triangle - The pump is ON.
- Solid amber triangle - The pump is ON but has low pressure.
- Open amber triangle - The pump is selected OFF.
Discuss normal and abnormal indications on the ECAM HYD page.
Engine Driven Pump Indications
- In-line GREEN - The respective ENG 1(2) pb is on and hydraulic pressure is _______._
- Cross-line AMBER - The respective ENG 1(2) pb is ______.
- AMBER LO - The respective ENG 1(2) pb is ON and hydraulic pressure is ________.
Discuss normal and abnormal indications on the ECAM HYD page.
Engine Driven Pump Indications
- In-line GREEN - The respective ENG 1(2) pb is on and hydraulic pressure is normal.
- Cross-line AMBER - The respective ENG 1(2) pb is OFF.
- AMBER LO - The respective ENG 1(2) pb is ON and hydraulic pressure is low.
Discuss normal and abnormal indications on the ECAM HYD page.
Fire Shutoff Valves
* In-line GREEN - Fire shutoff valve is ________.
* Cross-line AMBER - Fire shutoff valve is fully ________.
Discuss normal and abnormal indications on the ECAM HYD page.
Fire Shutoff Valves
* In-line GREEN - Fire shutoff valve is open.
* Cross-line AMBER - Fire shutoff valve is fully closed.
(Number 5)
Discuss normal and abnormal indications on the ECAM HYD page.
Reservoir Indications
- The reservoir fill range is indicated in ________.
- The normal fill level is indicated by a ______ ______ that is corrected for changes in fluid _______._
- If temperature ________ is lost, the box changes to _______._
Discuss normal and abnormal indications on the ECAM HYD page.
Reservoir Indications
- The reservoir fill range is indicated in white.
- The normal fill level is indicated by a green box that is corrected for changes in fluid temperature.
- If temperature correction is lost, the box changes to white.
Discuss normal and abnormal indications on the ECAM HYD page.
Reservoir Indications
The low fill level is indicated by an ______ ______.
If the fluid level falls to the low level:
- The fluid level pointer changes from ______ to ______ .
- The reservoir fill range changes from ______ to ______.
Discuss normal and abnormal indications on the ECAM HYD page.
Reservoir Indications
The low fill level is indicated by an amber box.
If the fluid level falls to the low level:
- The fluid level pointer changes from green to amber.
- The reservoir fill range changes from white to amber.
Discuss normal and abnormal indications on the ECAM HYD page.
Reservoir Indications
- The green fluid level indication and normal fill level increase slightly when the ______ ______ is ______.
- A white mark on the ________ system’s reservoir fill range indicates the ______ fill level for ______ ______ ______.
- If the fluid level is below the minimum fill level, the single white mark changes to ___ ______ marks.
Discuss normal and abnormal indications on the ECAM HYD page.
Reservoir Indications
- The green fluid level indication and normal fill level increase slightly when the landing gear is retracted.
- A white mark on the green system’s reservoir fill range indicates the minimum fill level for landing gear extension.
- If the fluid level is below the minimum fill level, the single white mark changes to two amber marks.
Discuss normal and abnormal indications on the ECAM HYD page.
OVHT
- OVHT is displayed in amber next to the affected reservoir if a reservoir ________ is detected.
Discuss normal and abnormal indications on the ECAM HYD page.
OVHT
- OVHT is displayed in amber next to the affected reservoir if a reservoir overheat is detected.
Discuss normal and abnormal indications on the ECAM HYD page.
LO AIR PRESS
- LO AIR PRESS is displayed in amber next to the affected reservoir if reservoir _______ air pressure is detected.
Discuss normal and abnormal indications on the ECAM HYD page.
LO AIR PRESS
- LO AIR PRESS is displayed in amber next to the affected reservoir if reservoir low air pressure is detected.
Discuss normal and abnormal indications on the ECAM HYD page.
RAT
- The RPM is displayed if the RAT is extended and its RPM is greater than [______].
- The table below outlines the different RAT indications on the HYD page.
Discuss normal and abnormal indications on the ECAM HYD page.
RAT
- The RPM is displayed if the RAT is extended and its RPM is greater than [100].
- The table below outlines the different RAT indications on the HYD page.
Discuss normal and abnormal indications on the ECAM HYD page.
Engine Labels
* Normally _____ but becomes _____ when the _____ of the corresponding engine is ______ ** ______.**
Discuss normal and abnormal indications on the ECAM HYD page.
Engine Labels
* Normally white but becomes amber when N2 of the corresponding engine is below idle.
Describe the hydraulic system design.
- Hydraulic power is provided by _______ independent hydraulic systems.
- They are designated _____, _____ and _____.
- Transfer of fluid or pressure from one system to another is ____ ________.
Describe the hydraulic system design.
- Hydraulic power is provided by three independent hydraulic systems.
- They are designated green, blue, and yellow.
- Transfer of fluid or pressure from one system to another is not possible.
Describe the hydraulic system design.
Each hydraulic system has its own ___________\_
Fluid is drawn from the reservoirs and supplied to hydraulic distribution lines by _________ engine driven hydraulic pumps.
Describe the hydraulic system design.
Each hydraulic system has its own reservoir.
Fluid is drawn from the reservoirs and supplied to hydraulic distribution lines by four engine driven hydraulic pumps.
Describe the hydraulic system design.
- Fluid drawn from the ____** passes through engine **____ _____ valves before being supplied to the pumps.
- Each engine driven pump has its _____ fire shutoff valve.
Describe the hydraulic system design.
- Fluid drawn from the reservoirs passes through engine fire shutoff valves before being supplied to the pumps.
- Each engine driven pump has its own fire shutoff valve.
Describe the hydraulic system design.
- The blue engine hydraulic pump is driven by _Engine ____._
- The yellow engine hydraulic pump is driven by _Engine ____._
- Engine #1 and #2 drive individual hydraulic pumps for the ________ system.
- Normal system pressure is ________ psi.
Describe the hydraulic system design.
- The blue Engine hydraulic pump is driven by Engine #1.
- The yellow Engine hydraulic pump is driven by Engine #2.
- Engine #1 and #2 drive individual hydraulic pumps for the green system.
- Normal system pressure is 3000 psi.
Describe the hydraulic system design.
Electric pumps in each system can provide ________ pressure, but at less ________ than engine driven pumps.
In flight they are only intended to assist after an engine failure in:
- ________ of gear (________ system),
- ________ of flaps (________ system),
- or ________ control (________ system) .
A hand pump is provided in the yellow system to allow for ______ ______ operation when electrical power is ____ ______.
Describe the hydraulic system design.
Electric pumps in each system can provide normal pressure, but at less volume than engine driven pumps.
In flight they are only intended to assist after an engine failure in:
- retraction of gear (green),
- retraction of flaps (yellow),
- or rudder control (blue) .
A hand pump is provided in the yellow system to allow for cargo door operation when electrical power is not available.
Describe the hydraulic system design
A pump driven by a Ram Air Turbine (RAT) can pressurise the ________ system in case of an emergency.
- The RAT can be extended ______ or ______.
- The RAT is extended manually by pushing the red, guarded ______ pb on the HYD panel.
In flight, the RAT extends automatically in case of either:
- A ________engine failure
- A ______ and ______, or ______ and ______ reservoir low level.
The RAT may be able to continue supplying hydraulic power using the small quantity of fluid remaining in the ________ system after automatic ______ ______ valve closure.
Describe the hydraulic system design
A pump driven by a Ram Air Turbine (RAT) can pressurise the green system in case of an emergency.
- The RAT can be extended manually or automatically.
- The RAT is extended manually by pushing the red, guarded RAT MAN ON pb on the HYD panel.
In flight, the RAT extends automatically in case of either:
- A dual engine failure
- A green and blue, or green and yellow reservoir low level.
The RAT may be able to continue supplying hydraulic power using the small quantity of fluid remaining in the green system after automatic fire shutoff valve closure.
Describe the effects of low fluid in each of the respective hydraulic reservoirs.
If the fluid level falls to the low level:
- The fluid level pointer changes from ______ to ______.
- The reservoir ________ range changes from ________ to amber.
- An ______ caution is generated.
- The ________ SD page is displayed.
Describe the effects of low fluid in each of the respective hydraulic reservoirs.
If the fluid level falls to the low level:
- The fluid level pointer changes from green to amber.
- The reservoir fill range changes from white to amber.
- An ECAM caution is generated.
- The HYD SD page is displayed.
Describe the effects of low fluid in each of the respective hydraulic reservoirs.
- The green system fill level indication provides information unique to the green system.
- A ________ mark is displayed on the green system’s reservoir fill range to indicate the ________ fill level for landing gear _________.
- If the fluid level is below the minimum fill level, the single white mark changes to ________ amber marks.
The associated ECAM steps will direct you to turn off the associated _______ _______ pumps and _______ pumps.
Describe the effects of low fluid in each of the respective hydraulic reservoirs.
- The green system fill level indication provides information unique to the green system.
- A white mark is displayed on the green system’s reservoir fill range to indicate the minimum fill level for landing gear extension.
- If the fluid level is below the minimum fill level, the single white mark changes to two amber marks.
The associated ECAM steps will direct you to turn off the associated engine driven pumps and electric pumps.
