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amber.
(2) Reservoir LO AIR PRESS
This appears in amber, and a caution appears on ECAM, if the air pressure for the indicated
reservoir drops below normal.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
HYDRAULIC
CONTROLS AND INDICATORS
A318/A319/A320/A321 FLEET DSC-29-20 P 5/10
FCOM 19 AUG 10
(3) Reservoir OVHT
This appears in amber, and a caution appears on ECAM, if the temperature of returning
hydraulic fluid temperature at the inlet to its reservoir is above normal.
(4) FIRE VALVE
Cross line - Amber : The valve is fully closed.
In line - Green : The valve is not fully closed.
(5) OVHT
This appears in amber if the electric pump for that system (blue or yellow) overheats.
(6) RAT
RAT ◂ White : The RAT is stowed.
RAT Green : The RAT is not stowed.
RAT ◂ Amber : Pressure for stowing the RAT has been applied, or the RAT pump is
not available.
(7) ELEC
This legend, normally white, becomes amber if the associated power supply fails.
(8) YELLOW ELEC PUMP control
◂ White : The electric pump is off.
Green : The electric pump is ON.
◂ Amber : The electric pump is ON and the yellow system has low pressure.
(9) PTU control
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
HYDRAULIC
CONTROLS AND INDICATORS
A318/A319/A320/A321 FLEET DSC-29-20 P 6/10
FCOM 19 AUG 10
(1)
Green : The power transfer unit (PTU) pushbutton switch is in AUTO and the PTU is
not transferring pressure.
Amber : The PTU pushbutton switch is OFF.
(2)
Green : The PTU is supplying the green hydraulic system.
(3)
Green : The PTU is supplying the yellow hydraulic system.
(10) ENG PUMP control and low pressure indication
In line - Green : The pushbutton switch for the designated PUMP is on and hydraulic
pressure is normal.
Cross line - Amber : The pushbutton switch for the designated PUMP is OFF.
“LO” - Amber : The pushbutton switch for the designated PUMP is on and hydraulic
pressure is low.
(11) System label
pressure > 1 450 PSI pressure < 1 450 PSI
YELLOW white amber
◂ green amber
(12) System pressure
This legend, normally green, becomes amber when system pressure is below 1 450 PSI.
(13) PUMP
This legend, normally white, becomes amber when N2 is below idle.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
HYDRAULIC
CONTROLS AND INDICATORS
A318/A319/A320/A321 FLEET DSC-29-20 P 7/10
FCOM 19 AUG 10
ECAM HYD PAGE
Applicable to:
,
,
MSN,,,,
(1) Reservoir quantity
It is in green, unless the fluid level goes below the warning level, in which case it becomes
amber.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
HYDRAULIC
CONTROLS AND INDICATORS
A318/A319/A320/A321 FLEET DSC-29-20 P 8/10
FCOM 19 AUG 10
(2) Reservoir LO AIR PRESS
This appears in amber, and a caution appears on ECAM, if the air pressure for the indicated
reservoir drops below normal.
(3) Reservoir OVHT
This appears in amber, and a caution appears on ECAM, if the temperature of returning
hydraulic fluid temperature at the inlet to its reservoir is above normal.
(4) FIRE VALVE
Cross line - Amber : The valve is fully closed.
In line - Green : The valve is not fully closed.
(5) OVHT
This appears in amber if the electric pump for that system (blue or yellow) overheats.
(6) RAT
RAT ◂ White : The RAT is stowed.
RAT Green : The RAT is not stowed.
RAT ◂ Amber : Pressure for stowing the RAT has been applied, or the RAT pump is
not available.
(7) ELEC
This legend, normally white, becomes amber if the associated power supply fails.
(8) YELLOW ELEC PUMP control
◂ White : The electric pump is off.
Green : The electric pump is ON.
◂ Amber : The electric pump is ON and the yellow system has low pressure.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
HYDRAULIC
CONTROLS AND INDICATORS
A318/A319/A320/A321 FLEET DSC-29-20 P 9/10
FCOM 19 AUG 10
(9) PTU control
(1)
Green : The power transfer unit (PTU) pushbutton switch is in AUTO and the PTU is
not transferring pressure.
Amber : The PTU pushbutton switch is OFF.
(2)
Green : The PTU is supplying the green hydraulic system.
(3)
Green : The PTU is supplying the yellow hydraulic system.
(10) ENG PUMP control and low pressure indication
In line - Green : The pushbutton switch for the designated PUMP is on and hydraulic
　
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