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OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
ADVERSE WEATHER - COLD WEATHER
A330/A340 FLEET PRO-SUP-91-30 P 7/12
FCOM 19 AUG 10
PROTECTIVE COVERS....................................................................................................INSTALL
Install protective covers and plugs to protect the aircraft and engines from snow and ice.
�� If no electrical ground supply or air conditioning is available :
APU BATTERY.......................................................................................................... REMOVE
If the APU battery is subject to cold soak for 12 h or more, and the ambient temperature
is below -15 °C (5 °F), its remaining capacity may not allow the cold-soaked APU to start.
Remove the battery and store it in a warm place.
SECURING THE AIRCRAFT FOR COLD SOAK
Applicable to: ,
Note: At beginning of a cold soak, due to a transient temperature difference between fluid in the
reservoir and the system piping, the G RSVR UNDERFILLED caution may be triggered on
the ECAM. Check the reservoir quantity in the upper half part of the norm filling range. The
caution may disappear with the operation of the green electrical pump.
Close the outflow valve before leaving the aircraft.
�� After switching off all bleeds and before switching off AC power :
DITCHING pushbutton................................................................................................................ON
This closes the outflow valve, the pack valves, and the avionic ventilation inlet and extract
valves.
PARKING BRAKE.....................................................................................................................OFF
Check chocks in place, and release the parking brake to prevent brakes from freezing.
�� After switching off the batteries :
DITCHING pushbutton.............................................................................................................. OFF
CAPT SEAT.....................................................................................MOST FORWARD POSITION
To facilitate access to the avionic bay, since seat operation becomes difficult once the
mechanism is cold-soaked.
PROTECTIVE COVERS....................................................................................................INSTALL
�� If no electrical ground supply or air conditioning is available :
APU BATTERY.......................................................................................................... REMOVE
If the APU battery is subject to cold soak for 12 h or more, and the ambient temperature
is below -15 °C (5 °F), its remaining capacity may not allow the cold-soaked APU to start.
Remove the battery and store it in a warm place.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
ADVERSE WEATHER - COLD WEATHER
A330/A340 FLEET PRO-SUP-91-30 P 8/12
FCOM 19 AUG 10
WATER SYSTEM DEPRESSURIZATION OR DRAINING
Applicable to: ALL
GENERAL
Drain the water system, if the OAT requires it, as shown below :
Configuration
Air Conditioning Cabin
temperature Outside Air Temperature Exposure time Water tank drain
Between 0 and -15 °C
(32 and 5 °F)
ON Above Any Not required
10 °C
(50 °F) Below -15 °C (5 °F) 1 h 15 min
Between 0 and -7 °C
(32 and 19.4 °F)
1 h 30 min
Between -7 and -15 °C
(19.4 and 5 °F)
0 h 30 min
OFF
Below -15 °C (5 °F) Any
Required
Applicable to:
WATER DRAINING PROCEDURE
The following procedure must be applied, when the water system needs to be drained, and when
the aircraft is exposed to temperatures below the freezing point.
Draining is usually carried out with the electrical power supply on.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
ADVERSE WEATHER - COLD WEATHER
A330/A340 FLEET PRO-SUP-91-30 P 9/12
FCOM 19 AUG 10
POTABLE-WATER PANELS
ACCESS PLATFORM(S)......................................................................................PUT IN POSITION
SHUT-OFF VALVES IN GALLEYS/TOILETS.............................................................CHECK OPEN
WATER FAUCETS IN GALLEYS/TOILETS.......................................................................................
............................................................................................... CHECK MIDDLE (WARM) POSITION
FWD AND AFT DRAIN, SERVICE PANELS’ ACCESS DOORS.............................................OPEN
DRAIN PORT CAPS........................................................................................................... REMOVE
　
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