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..........................................................................................................TURN TO “DRAIN” AND PULL
To drain, turn the handle to the “DRAIN” position, and then pull it out until it reaches its mechanical
stop. The (A), (B), (C) indicator lights come on. Water flows out of the drain ports of the forward
and aft drain, and the potable water service panels.
�� If the aircraft’s electrical network is de-energized :
DRAIN CONTROL HANDLES (FWD and AFT DRAIN PANELS)...............................................
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
ADVERSE WEATHER - COLD WEATHER
A330/A340 FLEET PRO-SUP-91-30 P 12/12
FCOM 19 AUG 10
........................................................................................................................TURN TO “OPEN”
The most aft (filling line drain valve control) handle on the aft drain panel is set to the “OPEN”
position. It is no longer possible to close the aft and forward drain panel access doors.
�� When the system is drained :
CONTROL HANDLE (SERVICE PANEL)....................................................................................
.............................................................................................. PUSH AND TURN TO “NORMAL”
The (A), (B), (C) indicator lights go off.
�� If the aircraft’s electrical network is de-energized :
DRAIN CONTROL HANDLES (FWD and AFT DRAIN PANELS).........................................
..................................................................................................................TURN TO “SHUT”
Note: In freezing temperatures, all drain valves must remain open after draining to prevent
damage to the system.
DRAIN HOSES..................................................................................................... DISCONNECT
PANELS..........................................................................................................CLEAN AND DRY
Note: In freezing conditions, when the drain valves must stay open, do not put the caps on
the service panel drain port..
ACCESS DOORS (FWD, AFT)........................................................................................CLOSE
Water drainage is assured even with access doors closed.
Note: When the drain valve is open manually it is not possible to close the portable water
service panel access door.
ACCESS PLATFORM(S)..............................................................................................REMOVE
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
ADVERSE WEATHER - OPERATIONS IN VOLCANIC ASH, SAND OR DUST
A330/A340 FLEET PRO-SUP-91-40 P 1/8
FCOM 19 AUG 10
GENERAL
Applicable to: ALL
OPERATIONS IN VOLCANIC ASH, SAND OR DUST
The following procedures are recommended for operators that may fly through areas with volcanic
ash, or to operators that operate to/from airports contaminated with sand or dust.
Because volcanic ash is composed of very abrasive particles that can significantly damage aircraft
parts and degrade the operation of the aircraft systems. If possible, operators should avoid airports
that are covered with volcanic ash deposits. If not possible to avoid these airports operators should
heed the following recommendations.
When operation on airport contaminated by sand or dust is expected, based on their experience
and the amount of contaminant, operators can consider applying most of the on-ground
recommendations in order to help preventing contamination of aircraft systems.
GROUND OPERATIONS ON AIRPORT COVERED WITH ASH, SAND OR DUST
Applicable to: ALL
APU................................................................................................................................DO NOT USE
Use the APU only to start the engines, and then only if ground power is not available, particularly in
case of volcanic ash.
Request ground supply for air conditioning and for electricity.
WINDSHIELD WIPERS................................................................................................... DO NOT USE
Do not use windshield wipers to remove ash, or for anything else.
Applicable to: ALL
EXTERIOR INSPECTION
SURFACES AND EQUIPMENT.........................................................CHECK FREE OF DEPOSITS
Ground maintenance should remove ash, sand or dust that has settled on exposed lubricated
surfaces and could penetrate seals or enter the engine gas path, air conditioning system, air data
probes, access doors and panels and other orifices on the aircraft.
ENGINE/APU INLETS....................................................................... CHECK FREE OF DEPOSITS
　
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