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‐ Closes the low-pressure fuel valve
‐ Closes the hydraulic fire shut off valve
‐ Closes the engine bleed valve
‐ Closes the pack flow control valve
‐ Cuts off the FADEC power supply
‐ Deactivates the IDG.
ENG 1 (2) FIRE lt
This red light comes on, regardless of the pushbutton's position, whenever the fire warning
for the corresponding engine is activated.
(2) AGENT 1 and AGENT 2 pb
Both of these pushbuttons become active when the flight crew pops the ENG FIRE button for
the associated engine.
A brief push on the pushbutton discharges the corresponding fire bottle.
‐ "SQUIB" comes on white when the flight crew pops the ENG FIRE button for its engine to
help the flight crew identify the AGENT pushbutton to be activated.
‐ "DISCH" comes on amber when its fire extinguisher bottle has lost pressure.
(3) TEST pb
This pushbutton permits the flight crew to test simultaneously the operation of the fire
detection and extinguishing system for both engines.
When the flight crew presses it :
A continuous ‐ repetitive chime sounds.
‐ The MASTER WARN lights flash.
‐ ENG FIRE warning appears on ECAM.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FIRE PROTECTION
ENGINE AND APU - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-26-20-20 P 4/8
FCOM 19 AUG 10
‐ On the FIRE panel :
• The ENG FIRE pushbutton comes on red.
• The SQUIB lights come on white if discharge supplies are available.
• The DISCH lights come on amber.
‐ On the ENG panel (pedestal) :
• The FIRE lights come on red.
APU FIRE PANEL
Applicable to: ALL
(1) APU FIRE pb
This pushbutton's normal position is in and guarded.
The pilot pushes it to release it. It pops out, sending an electrical signal that performs the
following for the APU :
‐ shuts down the APU
‐ silences the aural warning
‐ arms the squib on the APU fire extinguisher
‐ closes the low-pressure fuel valve
‐ shuts off the APU fuel pumps (aft and forward).
‐ closes the APU bleed valve and X bleed valve and deactivates the APU generator.
The red APU FIRE light comes on when the APU fire warning is activated, regardless of the
position of the pushbutton.
(2) AGENT pb
This pushbutton becomes active when the pilot pops the APU FIRE button.
The flight crew presses it briefly to discharge the fire bottle.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FIRE PROTECTION
ENGINE AND APU - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-26-20-20 P 5/8
FCOM 19 AUG 10
‐ SQUIB comes on white when the pilot pops the APU FIRE button.
‐ DISCH comes on amber when the fire extinguisher bottle has lost pressure.
Note: A red disk, which is outside at the rear of the fuselage, signals that the agent is not
discharged overboard due to bottle overpressure.
(3) TEST pb
This pushbutton permits the flight crew to test the operation of the fire detection and
extinguishing system for the APU.
When the flight crew presses it :
A continuous ‐ repetitive chime sounds.
‐ The MASTER WARN lights flash.
‐ APU FIRE warning appears on ECAM.
‐ On the APU FIRE panel :
• The APU FIRE pushbutton comes on red.
• The SQUIB light comes on white.
• The DISCH light comes on amber.
Note: The automatic shutdown of the APU on the ground will not occur while the flight crew
is performing this test.
PEDESTAL
Applicable to:
(1) FIRE lt
This light identifies the engine to be shutdown because of fire.
The light comes on red when an engine fire warning is triggered.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FIRE PROTECTION
ENGINE AND APU - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-26-20-20 P 6/8
FCOM 19 AUG 10
PEDESTAL
Applicable to: ,
(1) FIRE lt
This light identifies the engine to be shutdown because of fire.
The light comes on red when an engine fire warning is triggered.
EXTERNAL POWER PANEL
Applicable to: ALL
When the aircraft is on the ground, an APU fire causes an additional external warning.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FIRE PROTECTION
ENGINE AND APU - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-26-20-20 P 7/8
FCOM 19 AUG 10
(1) APU FIRE lt
The APU FIRE light comes on red and an external warning horn sounds when the system
detects an APU fire.
The APU fire extinguisher discharges automatically three seconds after the appearance of the
fire warning.
The light goes out when the fire has been extinguished.
　
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