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The cargo compartments have a smoke detection system.
Cavities in the cargo compartment ceiling panels each hold two ‐ smoke detectors. Each detector is
linked to one of the two detection loops (dual loop principle).
‐ The forward cargo compartment has two cavities.
‐ The aft cargo compartment has three cavities.
‐ The Cabin Intercommunication Data System (CIDS) receives signals from the detectors and
transmits them to the ECAM, which displays a warning in the cockpit. The CIDS has two identical
channels.
Smoke in one cavity activates the cargo smoke warning if :
‐ Both smoke detectors detect it, or
‐ One smoke detector detects it and the other is inoperative.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FIRE PROTECTION
CARGO COMPARTMENTS - SMOKE DETECTION
A318/A319/A320/A321 FLEET DSC-26-50-10 P 4/4
FCOM 19 AUG 10
If cargo ventilation is installed, and the cargo smoke warning is activated in either compartment, the
associated isolation valves �� automatically close and the extraction fan �� stops.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FIRE PROTECTION
CARGO COMPARTMENTS - FIRE EXTINGUISHING
A318/A319/A320/A321 FLEET DSC-26-50-20 P 1/2
FCOM 19 AUG 10
FIRE EXTINGUISHING
Applicable to: ALL
A fire extinguishing system protects the FWD and AFT cargo compartments.
One fire bottle supplies three nozzles (one in FWD compartment and two in AFT compartment).
The bottle has two discharge heads, one for each compartment. When a member of the flight crew
presses the DISCH pushbutton for either compartment, the action ignites the corresponding squib on
the fire bottle, which then discharges extinguishing agent into that compartment.
When the bottle has discharged, the DISCH light comes on amber.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FIRE PROTECTION
CARGO COMPARTMENTS - FIRE EXTINGUISHING
Intentionally left blank
A318/A319/A320/A321 FLEET DSC-26-50-20 P 2/2
FCOM 19 AUG 10
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FIRE PROTECTION
CARGO COMPARTMENTS - CONTROLS AND INDICATORS
A318/A319/A320/A321 FLEET DSC-26-50-30 P 1/4
FCOM 19 AUG 10
OVERHEAD PANEL
Applicable to:
(1) SMOKE light
This red light, and the associated ECAM warning, come on when the system detects smoke in
the indicated compartment. This light comes on, if :
‐ Both channels detect smoke, or
‐ One channel detects smoke and the SDCU finds that the other channel is faulty.
(2) DISCH pushbutton
This button ignites the squib to discharge the extinguishing agent in the corresponding
compartment (FWD or AFT).
(3) DISCH light
Within 60 s after pressing the discharge pushbutton, this amber light comes on, thereby
indicating that the agent bottle has fully discharged.
(4) TEST pushbutton
Pressing this button for at least 3 s, and until it is released :
‐ Tests the smoke detectors in sequence,
‐ Turns on the red smoke lights twice, and displays the ECAM warning,
‐ Turns on the amber DISCH light.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FIRE PROTECTION
CARGO COMPARTMENTS - CONTROLS AND INDICATORS
A318/A319/A320/A321 FLEET DSC-26-50-30 P 2/4
FCOM 19 AUG 10
OVERHEAD PANEL
Applicable to:
(1) SMOKE light
This red light, and the associated ECAM warning, come on when the system detects smoke in
the indicated compartment. This light comes on, if :
‐ Both channels detect smoke, or
‐ One channel detects smoke and the other channel is faulty.
(2) DISCH pushbutton
This button ignites the squib to discharge the extinguishing agent in the corresponding
compartment (FWD or AFT).
(3) DISCH light
Within 60 s after pressing the discharge pushbutton, this amber light comes on, thereby
indicating that the agent bottle has fully discharged.
(4) TEST pushbutton
Pressing this button for at least 3 s, and until it is released :
‐ Tests the smoke detectors in sequence,
‐ Turns on the red smoke lights twice, and displays the ECAM warning,
‐ Turns on the amber DISCH light.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FIRE PROTECTION
CARGO COMPARTMENTS - CONTROLS AND INDICATORS
A318/A319/A320/A321 FLEET DSC-26-50-30 P 3/4
FCOM 19 AUG 10
OVERHEAD PANEL
Applicable to:
(1) SMOKE light
This red light, and the associated ECAM warning, come on when the system detects smoke in
the indicated compartment. This light comes on, if :
‐ Both channels detect smoke, or
　
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