Fire & Smoke Flashcards
How many fire extinguishing bottles are available for fighting an APU fire?
One.
Each lavatory is equipped with…
One smoke detector and one smoke detection control unit.
What is the result if you press the APU FIRE pb?
Silences the aural fire warning arms the squib on the APU fire extinguisher closes the low-pressure fuel valve the APU bleed valve the X bleed valve shuts off the APU fuel pump and deactivates the APU generator.
What kind of smoke detection is installed in the avionic bay?
One smoke detector in the air extraction duct of the avionic ventilation system detects smoke in the avionics compartment.
Where are the sensing elements for the fire and overheat detection system located?
The three sensing elements for each engine are located in the pylon nacelle in the engine core and in the engine fan section.
How many halon fire extinguishing cylinders are there per engine?
Each engine has two fire extinguishers.
What happens if the system detects a APU fire on the ground?
If the system detects an APU fire while the aircraft is on the ground it shuts down the APU automatically and discharges the extinguishing agent.
Can the APU FIRE test be done using battery power only?
Yes.
Is a smoke detection or extinguishing system for the wastebins in the lavatory available?
Each lavatory wastebin has an automatic fire extinguishing system.
The aft cargo compartment smoke detection system consists of…
Four smoke detectors and a two channel smoke detection control unit.
Is an extinguishing system in the cargo compartments available?
Yes two fire bottles supply three nozzles (one in the FWD and two in AFT compartment). Bottle 1 is discharged in aprox. 60 s Bottle 2 discharges within aprox. 90 minutes.
When does the APU fire bottle discharge automatically?
The bottle discharges automatically if there is an APU fire when the aircraft is on the ground.
What is the result if you press the ENG FIRE pb?
Silences the aural fire warning arms the fire extinguisher squibs closes the low-pressure fuel valve the hydraulic fire shut off valve the engine bleed valve the pack flow control valve cuts off the FADEC power supply and deactivates the IDG.
How many smoke detectors are installed in the cargo compartments?
2 FWD 4 AFT.
Illumination of the GEN 1 LINE SMOKE light indicates…
Smoke has been detected in the avionic compartment ventilation duct.
ENG 1 (2) FIRE pb (FIRE panel)
Pressing it does what?
- Silences the aural fire warning
- Arms the fire extinguisher squibs
- Closes the hydraulic fire shut off valve
- Closes the low-pressure fuel valve
- Deactivates the IDG
- Closes the pack flow control valve
- Closes the engine bleed valve
- Cuts off the FADEC power supply
ENG 1 (2) FIRE LT (FIRE panel)
When does it come on?
This red light comes on, regardless of the ENG 1 (2) FIRE pb’s position, whenever the fire warning for the corresponding engine is activated.
AGENT 1 (2) pb (FIRE panel)
- SQUIB
- DISCH
A brief push on the button discharges the corresponding fire bottle.
SQUIB:
Lights up white when the ENG FIRE button is popped for its engine to help the flight crew identify the AGENT pb to be activated.
DISCH:
Lights up amber when its fire extinguisher bottle has lost pressure.
TEST pb
(FIRE panel - Engines)
Indications of a good test:
When the flight crew presses it:
- CRC sounds
- MASTER WARN lights flash
- ENG FIRE warning on ECAM
On the FIRE panel:
- ENG FIRE pb lights up red.
- SQUIB lights come on white if discharge supplies are available
- DISCH lights come on amber
On the ENG panel (pedestal):
- FIRE lights come on red
APU FIRE pb sw
(FIRE panel)
Pressing it does what?
- Shuts down APU
- Silences the aural warning
- Arms the squib
- Closes the low-pressure fuel valve
- Shuts off the APU fuel pump
- Deactivates the APU generator
- Closes the APU bleed valve and X bleed valve
AGENT pb
(FIRE panel - APU)
- SQUIB Light
- DISCH Light
This button becomes active when the pilot pops the APU FIRE button.
The flight crew presses it briefly to discharge the fire bottle.
SQUIB:
Lights up white when the pilot pops the APU FIRE button
DISCH:
Lights up amber when the fire extinguisher bottle has lost pressure.
TEST pb
(FIRE panel - APU)
Indications of a good test:
- CRC sounds
- MASTER WARN lights flash
- APU FIRE warning on ECAM
On the APU FIRE panel:
- APU FIRE pb lights up red
- SQUIB light comes on white
- DISCH light comes on amber
APU FIRE Light
(FIRE panel)
When does it come on?
The red APU FIRE light comes when the APU fire warning is activated, regardless of the position of the pb.
FIRE Light
(ENG panel on pedestal)
- FIRE Light
FIRE Light:
Light comes on red when an engine fire warning is triggered.
FWD or AFT (lights)
(CARGO SMOKE panel)
SMOKE light
DISCH light
SMOKE light:
This red light, and the associated ECAM warning, come on when the system detects smoke in the indicated compartment.
DISCH light:
Within 60 seconds after pressing the DISCH pb, this amber light comes on, indicating that the agent bottle has fully discharged.
DISCH pb (FWD or AFT) (CARGO SMOKE panel)
This button ignites the squib to discharge the extinguishing agent in the corresponding compartment (FWD or AFT).
TEST pb
(CARGO SMOKE panel)
Indications of a good test:
Pressing this button for at least 3 seconds, and until it is released:
- Tests the smoke detectors in sequence.
- Turns on the red smoke lights twice.
- Displays the ECAM warning.
- Closes the ventilation system’s isolation valves.
- Turns on the amber DISCH lights.
List the actions that occur when an ENGINE FIRE pushbutton is pressed.
- 2-Silences the aural fire warning and arms the fire extinguisher squibs
- 1-Closes the hydraulic fire shutoff valve
- 2-Closes the low-pressure fuel valve and teh IDG fuel return valve
- 1-Deactivates the IDG (FADEC power supply also deactivated)
- 2-Closes the pack flow control and engine bleed valves
What does an amber DISCH light mean?
The fire extinguisher bottle has lost its pressure
List the actions that occur when the APU FIRE pushbutton is pressed.
- 2-Silences the aural fire warning and arms the APU fire extinguisher squib
- 1-Shuts down the APU (ECB)
- 2-Closes the low-pressure fuel valve and shuts OFF the APU fuel pump
- 1-Deactivates the APU generator
- 2-Closes the APU vleed and X bleed valves
How many fire extinguisher are provided for the cargo compartments?
1 Bottle, which can be discharged to either compartment
Where are the engine fire loops located?
- Pylon Nacelle
- Engine Core
- Fan Section
What happens if both fire loops fail?
If the failure of both loops occurs within 5 seconds of each other, a FIRE warning will be issued
How many fire extinguisher are provided for each engine?
2
What occurs when you press the TEST pushbutton on the ENGINE FIRE panel?
7 Lights
- CRC Sounds
- MASTER WARN lights flash (2)
- ENG FIRE pb illuminates red (1)
- SQUIB and DISCH lights illuminate (2)
- ECAM FIRE WARNING (1)
- FIRE light on the ENG panel illuminates (1)
How many fire extinguishers are provided for the APU?
1
What occurs when you press the APU FIRE TEST pushbutton?
5 Lights
- CRC Sounds
- MASTER WARN lights flash (2)
- APU FIRE pb illuminates red (1)
- SQUIB and DISCH lights illuminate (1)
- ECAM FIRE WARNING (1)
Does the APU fire extinguisher automatically discharge if a fire is detected on the ground?
Yes. The APU will automatically shut down at the APU fire extinguisher will discharge.
Does the APU fire extinguisher automatically discharge if a fire is detected in-flight?
No
Where are the HYD FIRE SHUTOFF VALVES located?
Between the respective reservoir and ENG pump
What does teh amber SMOKE light in the GEN 1 LINE pushbutton indicate?
Smoke detected in the avionic ventilation ducting
What are the indications when you TEST the CARGO SMOKE?
FIVE 2’s
- 2 amber DISCH lights illuminate and extinguish, then
- 2 red SMOKE lights illuminate
- 2 MASTER WARNING lights with CRC
- 2 CARGO SMOKE lines on ECAM
- Test runs TWICE to check both Smoke Detector Control Unit (SDCU) channels
Is the skin heat exchanger ever bypassed in flight?
Yes, during SMOKE configuration
What does the red SMOKE light in the FWD or AFT pushbutton indicate?
- Both channels detect smoke, OR
- One channel faulty and the other detects smoke
How many smoke detectors are there?
- 2 in FWD cargo
- 4 in AFT cargo
