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OXYGEN
FIXED OXYGEN SYSTEM FOR CABIN - DESCRIPTION
A330/A340 FLEET DSC-35-30-10 P 5/8
FCOM 19 AUG 10
SCHEMATIC
Applicable to:
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
OXYGEN
FIXED OXYGEN SYSTEM FOR CABIN - DESCRIPTION
A330/A340 FLEET DSC-35-30-10 P 6/8
FCOM 19 AUG 10
SCHEMATIC
Applicable to:
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
OXYGEN
FIXED OXYGEN SYSTEM FOR CABIN - DESCRIPTION
A330/A340 FLEET DSC-35-30-10 P 7/8
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
OXYGEN
FIXED OXYGEN SYSTEM FOR CABIN - DESCRIPTION
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A330/A340 FLEET DSC-35-30-10 P 8/8
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
OXYGEN
FIXED OXYGEN SYSTEM FOR CABIN - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-35-30-20 P 1/4
FCOM 19 AUG 10
OVERHEAD PANEL
Applicable to: ,
(1) PASSENGERS SYS ON lt
This light comes on in white when the control for the oxygen mask doors is activated,
and remains on until the TMR RESET pushbutton is pressed. (Refer to DSC-35-30-20
MAINTENANCE PANEL, below).
(2) MASK MAN ON pb
The guard keeps this button in the AUTO position.
AUTO : The mask doors open automatically when the cabin altitude exceeds
14 000 ft.
Pressed : The mask doors open.
OVERHEAD PANEL
Applicable to: ,
(1) PASSENGERS SYS ON lt
This light comes on in white when at least one of the system shut-off valves is open and
remains on until the RESET pushbutton is pressed (Refer to DSC-35-30-20 MAINTENANCE
PANEL, below).
(2) MASK MAN ON pb
The guard keeps this button in the AUTO position.
AUTO : Pressure is automatically applied to the cabin oxygen system when the cabin
altitude exceeds 14 000 ft.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
OXYGEN
FIXED OXYGEN SYSTEM FOR CABIN - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-35-30-20 P 2/4
FCOM 19 AUG 10
Pressed : Pressure is applied to the cabin oxygen system.
MAINTENANCE PANEL
Applicable to: ,
(1) TMR RESET pb sw
The maintenance crew uses this pushbutton to reset the control circuit, after the system has
operated.
ON : This light comes on in white, and the PASSENGER SYS ON light goes off.
FAULT : This light comes on in white, when the door latch solenoids are energized for
more than 30 s.
MAINTENANCE PANEL
Applicable to:
(1) RESET pb sw
The maintenance crew uses this pushbutton to reset the control circuit, after the system has
operated
ON : This light comes on in white, and the PASSENGER SYS ON light goes off.
The system shut-off valves close and the main supply line shut-off valves
open.
The ON light goes off when the reset is completed (3 s).
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
OXYGEN
FIXED OXYGEN SYSTEM FOR CABIN - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-35-30-20 P 3/4
FCOM 19 AUG 10
FAULT : This light comes on in white, when the reset has failed.
ECAM DOOR/OXY PAGE
Applicable to: ,
(1) OXY high pressure indication
Green􀀃(steady)􀀃:􀀃When􀀃pressure􀀃is􀀃≥􀀃1􀀃200􀀃PSI􀀃
Green􀀃(pulsing)􀀃:􀀃When􀀃pressure􀀃is􀀃≥􀀃200􀀃PSI􀀃and􀀃<􀀃1􀀃200􀀃PSI􀀃
Amber : When pressure is < 200 PSI
An amber half frame appears when oxygen pressure is < 1 600 PSI
(2) REGUL LO PR indication
Appears amber, if :
‐ Oxygen pressure on the low-pressure circuit is low (64 PSI), or if the low pressure switch
fails.
‐ One of the system shut off valves is not fully closed, and the system has not been activated.
‐ One of the main supply line shut-off valves is not fully open, and the system has not been
activated.
‐ Both main supply line shut-off valves are closed, when the system has been activated.
(3) PAX OXY indication
It is normally white.
It becomes amber, when:
‐ Pressure goes below 200 PSI.
‐ Low oxygen pressure is detected on the low pressure circuit.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
OXYGEN
FIXED OXYGEN SYSTEM FOR CABIN - CONTROLS AND INDICATORS
Intentionally left blank
A330/A340 FLEET DSC-35-30-20 P 4/4
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
OXYGEN
FIXED OXYGEN SYSTEM FOR CABIN - ELECTRICAL SUPPLY
　
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