Smoke/Fire Flashcards
1
Q
What Extinguishing Agent is used in the Fire Bottles?
A
HALON
2
Q
Where are the Engine Fire Detection sensing elements located?
A
- Fixed Cowl.
- Accessory Gearbox;
- Engine Core;
3
Q
What must happen to activate the Fire Warning System?
A
- Both paired loops in a section must sense heat;
- If 1 loop is inoperative, the remainder loop will activate the FIRE Warning.
4
Q
How is the Fire Detection/Suppression for the Baggage Compartment provided?
A
- Smoke Detectors;
- BTL 1 can be discharged into the baggage compartment.
5
Q
During an Engine Fire, what 5 indications come on?
A
- The respective L/R ENG FIRE PBA illuminates;
- Red L/R ENG FIRE CAS message displays;
- FIRE icon in the N1 gauge;
- Aural Warning voice message, Left (Right) Engine Fire;
- Master Warning PBA flashes Red on the glareshield.
6
Q
What 6 events occur when the L/R ENG FIRE PBA is pressed?
A
- Firewall Fuel Shutoff Valve closes;
- Hydraulic SOV closes;
- Engine PRSOV closes;
- Generator is taken offline;
- Ignition is disabled;
- BTL 1 & BTL 2 PBAs illuminate green AVAIL to indicate Armed.
7
Q
Does pressing the ENG FIRE PBA command an immediate Engine Shutdown?
A
- NO. The FIRE PBA closes the Fuel feed SOV at the firewall. Engine will run a few sec to empty the line.
- Immediate Shutdown is via the ENGINE RUN switch per the checklist
- Note: The ENGINE RUN switch closes the HPSOV in the fuel metering unit.
8
Q
What 5 events occur when APU FIRE PBA is pressed?
A
- APU Firewall Fuel SOV closes;
- APU Fuel Control Unit shuts off the fuel;
- APU Bleed Control Valve (BCV) is closed;
- APU Generator is taken offline;
- BTL 2 PBA illuminates green AVAIL to indicate Armed.
9
Q
If an APU Fire is detected on the Ground, what’s the automatic shutdown/extinguishing sequence events?
A
- APU FIRE Warning Horn sounds outside the airplane;
- APU BCV closes
- FIDEEX triggers APU Shutdown;
- Within 10 seconds of detection, BTL 2 discharges.
NOTE: The APU may be left unattended.
- Within 10 seconds of detection, BTL 2 discharges.
