Fire Extinguishing System in Cargo Compartment - Electrical Power Supply
Figure 007
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**ON A/C ALL
5. Operation/Control and Indicating
________________________________
A. Detection
(1) Fire and Overheat Detection
(a) Engine (Ref. Fig. 008, 009)
When the engine Fire Detection Unit (FDU) confirms a fire or an overheat:
-it triggers warnings on: . the ENG/APU FIRE panel (20VU), . the ENG MASTER control panel (115VU),
-the MASTER WARN light comes on,
-a warning comes into view on the upper ECAM DU.
The aural warning sounds.
(b) Auxiliary Power Unit (APU)
When the APU Fire Detection Unit (FDU) confirms a fire or an overheat:
1_ In the cockpit
(Ref. Fig. 010)
- it triggers a warning on:
. the ENG/APU FIRE panel (20VU),
- the MASTER WARN light comes on,
- a warning comes into view on the upper ECAM DU.
The aural warning sounds.
2_ On the ground
(Ref. Fig. 011)
- the FIRE warning light comes on on the control panel
(108VU).
The aural warning sounds.
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Engine Fire Indicating and Controls Figure 008
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ECAM Warning System - Indicating and Controls Figure 009
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APU Fire Indicating and Controls in the Cockpit Figure 010
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APU Fire Indicating and Controls from the Ground Figure 011
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(2) Smoke Detection
(a) Avionics Compartment (Ref. Fig. 012)
When the smoke detector confirms a smoke detection: - it triggered warning on: . the VENTILATION control panel (22VU), . the EMER ELEC PWR control panel (21VU), - the MASTER CAUT light comes on, - a warning comes into view on the upper ECAM DU.
The aural warning sounds.
(b) Lavatories
When the SDCU confirms a smoke detection: - the MASTER WARN light comes on, - a warning comes into view on the upper ECAM DU.
The aural warning sounds.
(c) Cargo Compartment
When the SDCU confirms a smoke detection: - it triggered warning on: . the CARGO SMOKE control panel (22VU), - the MASTER WARN light comes on, - a warning comes into view on the upper ECAM DU.
The aural warning sounds.
R B. Extinguishing
R (1) Fixed Equipment
R R R R R R R R R R (a) Engine The fire extinguishing system is activated when the fire and overheat detection system detects a fire. The two fire extinguisher bottles are controlled from the cockpit. During the extinguishing procedure, the extinguishing agent flows in rigid pipes and is immediately sprayed in the engine fire zones.
Smoke Indicating of the Avionics Compartment Figure 012
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R Thirty seconds later (after the first bottle discharged), if the
R fire is still present, the pilot fires the second bottle.
R
R The fire procedure is given by the ECAM system.
R (b) Auxiliary Power Unit (APU)
R
R The fire extinguishing system is activated when the fire and
R overheat detection system detects a fire.
R
R For the APU, the fire extinguishing agent is contained in one
R fire extinguisher bottle.
R
R During the extinguishing procedure, the extinguishing agent flows
R in rigid pipes and is immediately sprayed in the APU compartment.
R
R In flight, the extinguishing system is manually activated from
R the cockpit.
R On the ground, the fire and overheat detection system activates
R the extinguishing system automatically (if there is no action
R from the cockpit).
R (c) Lavatories
R
R The lavatory fire extinguishing system is fully automatic. If a
R fire starts in the waste container, it is contained in the inner
R metal waste bin.
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