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turbofan (supply valve failed closed or turbofan jammed).
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AIR COND / PRESS / VENT
VENTILATION - PACK BAY VENTILATION
Intentionally left blank
A330/A340 FLEET DSC-21-30-70 P 2/2
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AIR COND / PRESS / VENT
VENTILATION - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-21-30-80 P 1/4
FCOM 19 AUG 10
OVERHEAD PANEL
Applicable to:
(1) EXTRACT pb
AUTO : On ground, with Engines 2 and 3 not running, the underfloor extract valve is
closed and the OVBD extract valve is open, provided DITCHING is not selected.
In flight, or on ground, with Engine 2 or 3 running, the underfloor extract valve is
open and the OVBD extract valve is closed.
OVRD : The underfloor extract valve closes and the OVBD extract valve partially opens,
provided DITCHING is not selected.
FAULT lt : The amber light and associated ECAM caution come on, when an extract low
flow is detected in the avionics compartment.
The FAULT light goes out when OVRD is selected.
(2) CAB FAN pb
(Refer to DSC-21-10-50 OVERHEAD PANEL (CONT'D))
OVERHEAD PANEL
Applicable to: ,
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AIR COND / PRESS / VENT
VENTILATION - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-21-30-80 P 2/4
FCOM 19 AUG 10
(1) EXTRACT pb
AUTO : On ground, with both engines not running, the underfloor extract valve is closed
and the OVBD extract valve is open, provided DITCHING is not selected.
In flight, or on ground, with at least one engine running, the underfloor extract
valve is open and the OVBD extract valve is closed.
OVRD : The underfloor extract valve closes and the OVBD extract valve partially opens,
provided DITCHING is not selected.
FAULT lt : The amber light and associated ECAM caution come on, when an extract low
flow is detected in the avionics compartment.
The FAULT light goes out when OVRD is selected.
(2) CAB FAN pb
(Refer to DSC-21-10-50 OVERHEAD PANEL (CONT'D))
ECAM CAB PRESS PAGE
Applicable to: ALL
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AIR COND / PRESS / VENT
VENTILATION - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-21-30-80 P 3/4
FCOM 19 AUG 10
(1) OVBD extract valve position indication
Normally, the EXTRACT indication appears in white and the valve symbol is in green.
Both become amber in case of an abnormal position.
(2) VENT indication
This normally appears in white.
It becomes amber in case of extract low flow.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AIR COND / PRESS / VENT
VENTILATION - CONTROLS AND INDICATORS
Intentionally left blank
A330/A340 FLEET DSC-21-30-80 P 4/4
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AIR COND / PRESS / VENT
VENTILATION - WARNINGS AND CAUTIONS
A330/A340 FLEET DSC-21-30-90 P 1/2
FCOM 19 AUG 10
WARNINGS AND CAUTIONS
Applicable to:
E/WD : FAILURE TITLE
conditions
AURAL
WARNING
MASTER
LIGHT
SD PAGE
CALLED
LOCAL
WARNING
FLT
PHASE
INHIB
BLOWING FAULT (1)
Low cooling capacity detected by the CED. NIL NIL 4, 5, 7, 8
EXTRACT FAULT (1)
Low extract flow detected by the pressure switch.
OVBD VALVE FAULT
Valve open at engine start or, not partially open after
override.
CAB
PRESS
EXTRACT
FAULT light
3, 4,
5, 7, 8
PACK BAY VENT FAULT (1)
Lo ΔP detected across the turbofan, with at least one
pack in operation.
SINGLE
CHIME
MASTER
CAUT
NIL NIL 3 to 8
(1) Associated with the external ground horn, triggered after a 5-minute time delay.
WARNINGS AND CAUTIONS
Applicable to: ,
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AIR COND / PRESS / VENT
VENTILATION - WARNINGS AND CAUTIONS
A330/A340 FLEET DSC-21-30-90 P 2/2
FCOM 19 AUG 10
E/WD : FAILURE TITLE
conditions
AURAL
WARNING
MASTER
LIGHT
SD PAGE
CALLED
LOCAL
WARNING
FLT
PHASE
INHIB
BLOWING FAULT (1)
Low cooling capacity detected by the CED. NIL NIL 4, 5, 7, 8
EXTRACT FAULT (1)
Low extract flow detected by the pressure switch.
OVBD VALVE FAULT
Valve open at engine start or, not partially open after
override.
CAB
PRESS
EXTRACT
FAULT light
3, 4,
　
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