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It is in amber, when the pressure is less than 400 PSI.
An amber half frame appears, when the oxygen pressure is less than 1 500 PSI.
In this case, the flight crew must check that the remaining quantity is not below the minimum
Refer to LIM-35 COCKPIT FIXED OXYGEN SYSTEM.
(2) REGUL LO PR indication
It is in amber, if oxygen pressure on the low-pressure circuit is low (50 PSI).
(3) CKPT OXY indication
It is normally in white.
It becomes amber, when :
‐ The pressure goes below 400 PSI.
‐ Low oxygen pressure is detected.
‐ The overhead panel's OXYGEN CREW SUPPLY pushbutton is OFF.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
OXYGEN
FIXED OXYGEN SYSTEM FOR COCKPIT - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-35-20-20 P 5/6
FCOM 19 AUG 10
ECAM DOOR/OXY PAGE
Applicable to: ,
(1) OXY high pressure indication
It is in green, when the pressure is greater than, or equal to 800 PSI.
It pulses in green, when the pressure is less than 800 PSI (the DOOR/OXY page is
automatically displayed).
It is in amber, when the pressure is less than 400 PSI.
An amber half frame appears, when the oxygen pressure is less than 1 500 PSI.
In this case, the flight crew must check that the remaining quantity is not below the minimum
Refer to LIM-35 COCKPIT FIXED OXYGEN SYSTEM.
(2) REGUL LO PR indication
It is in amber, if oxygen pressure on the low-pressure circuit is low (50 PSI).
(3) CKPT OXY indication
It is normally in white.
It becomes amber, when :
The ‐ pressure goes below 400 PSI.
‐ Low oxygen pressure is detected.
‐ The overhead panel's OXYGEN CREW SUPPLY pushbutton is OFF.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
OXYGEN
FIXED OXYGEN SYSTEM FOR COCKPIT - CONTROLS AND INDICATORS
Intentionally left blank
A330/A340 FLEET DSC-35-20-20 P 6/6
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
OXYGEN
FIXED OXYGEN SYSTEM FOR COCKPIT - ELECTRICAL SUPPLY
A330/A340 FLEET DSC-35-20-30 P 1/2
FCOM 19 AUG 10
BUS EQUIPMENT LIST
Applicable to: ALL
L3
NORM EMER ELEC
AC DC DCB
AT
AC
ESS
DC
ESS HOT
CREWOXY CTL SHED
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
OXYGEN
FIXED OXYGEN SYSTEM FOR COCKPIT - ELECTRICAL SUPPLY
Intentionally left blank
A330/A340 FLEET DSC-35-20-30 P 2/2
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
OXYGEN
FIXED OXYGEN SYSTEM FOR CABIN - DESCRIPTION
A330/A340 FLEET DSC-35-30-10 P 1/8
FCOM 19 AUG 10
GENERAL
Applicable to: ,
The fixed oxygen system in the cabin supplies oxygen to the occupants, in case of cabin
depressurization.
Chemical generators produce the oxygen. Each generator feeds a group of 2, 3, 4, 5 or 6 masks.
Generators and masks are in containers above the passenger seats, in the lavatories, in each galley,
and at each cabin crew station.
GENERAL
Applicable to:
The fixed oxygen system in the cabin supplies oxygen to the occupants, in case of cabin
depressurization.
The system stores its oxygen in interconnected cylinders (5, plus up to 5 additional), behind the right
hand sidewall lining in the forward cargo compartment. The oxygen goes to the mask containers in
the cabin, via two main supply lines and a network of pipes.
The containers are above the passenger seats, in the lavatories, in each galley and at each cabin
crew station. Each container has 2,3,4 or 5 oxygen masks. An altimetric flow regulation device in
each mask container controls the flow rate. The Quantity Calculation and Control Unit (QCCU)
supplies the value of the average, temperature-compensated pressure that will appear on the ECAM
system page.
GENERAL
Applicable to:
The fixed oxygen system in the cabin supplies oxygen to the occupants, in case of cabin
depressurization.
The system stores its oxygen in interconnected cylinders (5, plus up to 6 additional), behind the right
hand sidewall lining in the forward cargo compartment. The oxygen goes to the mask containers in
the cabin, via two main supply lines and a network of pipes.
The containers are above the passenger seats, in the lavatories, in each galley and at each cabin
crew station. Each container has 2,3,4 or 5 oxygen masks. An altimetric flow regulation device in
each mask container controls the flow rate. The Quantity Calculation and Control Unit (QCCU)
supplies the value of the average, temperature-compensated pressure that will appear on the ECAM
system page.
A330/A340 FLIGHT CREW
　
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