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30 Cards in this Set
- Front
- Back
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What airplane systems have fire detection and protection?
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Engines
APU Cargo Compartments Lavatories |
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Are the cockpit and cabin protected from fire?
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Yes
Cockpit: 1 hand-held Halon fire extinguisher Cabin: 4 hand-held Halon fire extinguishers (2 fwd & 2 aft) |
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How are the engines and APU protected from fire?
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Engines: 2 Halon fire bottles APU: 1 Halon fire bottle dedicated to the APU only
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Can both engine fire bottles be used for one engine if needed?
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Yes
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What is the power source for engine and APU fire detection and protection?
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Engine Detection DC ESS
Engine Protection HOT BATT APU Detection DC ESS APU Protection DC ESS |
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Describe the engine and APU fire detection system?
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Engine 8 pneumatic fire detectors (2 loops) per engine
APU 2 pneumatic fire detectors (2 loops) |
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Describe the fire test?
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Fire bell Triple chime Fire handle 1 Fire handle 2 - Cargo smoke (FWD) extinguisher button - Cargo smoke (AFT) extinguisher button - APU extinguisher button - APU EMER STOP (top half of button) Master warning light (left) Master caution light (right) ENG 1 FIRE (CAS message) ENG 2 FIRE (CAS message) CARGO FWD SMOKE (CAS message) CARGO AFT SMOKE (CAS message) APU FIRE (CAS message) FIRE (Engine 1 ITT gauge) FIRE (Engine 2 ITT gauge)
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What happens when an engine fire handle is pulled?
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Closes respective engine fuel SOV Closes respective engine hydraulic SOV Closes respective engine bleed SOV
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What are the indications of an APU fire?
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Fire bell Red stripe in the EMER STOP APU FIRE on the EICAS
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Will the APU automatically shutdown if a fire is detected?
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Only on the ground
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What happens if the APU EMER STOP button is pushed after a fire has been detected?
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APU shuts off immediately without a 1 minute cooldown APU fuel SOV closes APU FIRE EXTG button illuminates
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What happens if the APU EMER STOP button is not pushed after a fire has been detected?
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After 1 minute, the APU FIRE EXTG button illuminates
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Will the APU fire extinguisher automatically discharge?
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No
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How many smoke detectors are installed in the cargo compartments?
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3 detectors in the FWD compartment
2 detectors in the AFT compartment |
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What happens to the fwd cargo compartment in the event smoke is detected?
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Recirculation fans shut off Ventilation outflow valve closes
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What is the purpose of the recirc fans shutting off and outflow valve closing when smoke is detected in the cargo compartment?
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Prevents oxygen from entering the compartment Prevents HALON agent from escaping into the aircraft's cabin
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How many extinguishing bottles are installed for the cargo compartments?
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2 bottles used for both compartments 1 high-rate bottle and 1 low-rate bottle
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What is the difference between the high-rate bottle and the low-rate bottle?
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High-rate bottle saturates the compartment immediately
Low-rate bottle maintains saturation for 60 mins. |
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How long will the low-rate bottle remain active in the compartment?
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60 mins
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Can 1 bottle be used for 1 compartment and the other bottle for the other compartment?
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No, Only 1 compartment may be selected (FWD or AFT)
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What happens when a cargo extinguishing button is pushed if smoke has been detected?
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High-rate bottle discharges immediately (In-flight or on the ground) Low-rate bottle discharges automatically after 1 minute if the airplane is in flight If airplane is on the ground, (WOW) the low-rate bottle will not automatically discharge. Need to push the button once more.
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During flight, can the low-rate bottle be discharged before the minute is up?
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Yes, by pushing the extinguishing button again
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How can the low-rate bottle be discharged if the airplane is on the ground (WOW)?
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The extinguishing button must be pushed again
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Can cargo extinguishing be used if no smoke is detected?
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Yes, The high-rate bottle extinguishing button must be pushed twice, once to arm the bottle and once to discharge the bottle The low-rate bottle automatically discharges after 1 minute if in flight
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What indication do you have that the fire extinguishing bottle has been discharged?
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An ENG FIREX BTL A(B) advisory on the EICAS.
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What indication do you have when both fire-detector loops have failed?
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An APU (ENG 1 or 2) FIRE DET FAIL caution on EICAS.
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Can you dispatch with 1 fire detection loop inoperative?
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Yes
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What EICAS warning would be the indication of a lavatory smoke fire?
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LAV SMOKE
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When would the lavatory fire-extinguishing bottle be discharged?
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When the temperature inside the waste container is high.
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Where are the cargo fire bottles located?
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Center Avionics Bay
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