Term
| What airplane systems have fire detection and protection? |
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Definition
Engines
APU
Cargo Compartments
Lavatories |
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Term
| Are the cockpit and cabin protected from fire? |
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Definition
Yes
-Cockpit has 1 hand-held Halon fire extingruisher
-Cabin has 4 hand-held Halon fire extinguishers (2 fwd & 2 aft) |
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Term
| How are the engines and APU protected from fire? |
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Definition
-Engines: 2 Halon fire bottles
-APU: 1 Halon fire bottle dedicated to the APU only. |
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Term
| Can both engine fire bottles be used for one engine if needed? |
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Definition
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Term
| What is the power source for engine and APU fire detection and protection? |
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Definition
-Engine Detection: DC ESS
-Engine Protection: HOT BATT
-APU Detection: DC ESS
-APU Protection: DC ESS |
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Term
| Describe the Engine and APU fire detection system. |
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Definition
-Engine: 8 pneumatic fire detectors (2 loops) per engine,
-APU: 2 pneumatic fire detectors (2 loops) |
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Term
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Definition
Press and hold the test button on the overhead panel for a minimum of 3 seconds, but no more than 10 seconds if the APU is running or it will automatically shut down the APU.
Aural warnings:
-Fire bell
-Triple chime
Visual indicators:
OVERHEAD PANEL (6)
-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)
GLARESHIELD (2)
-Master warning light (left)
-Master warning light (right)
EICAS (6)
-ENG 1 FIRE (CAS message)
-ENG 2 FIRE (CAS message)
-CARGO FWD SMOKE (CAS message)
-CARGO AFT SMOKE (CAS message)
-FIRE (Engine 1 ITT guage)
-FIRE (Engine 2 ITT guage) |
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Term
| What happens when an engine fire handle is pulled? |
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Definition
Closes respective:
fuel
hydraulic
engine bleed Shutoff Valves |
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Term
| What is an indication of an APU fire? |
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Definition
Fire bell
Red stripe in the EMER STOP button
APU FIRE is displayed on the EICAS |
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Term
| Will the APU automatically shut down if a fire is detected? |
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Definition
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Term
| What happens if the APU EMER STOP button is pushed after a fire has been detected? |
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Definition
-APU shuts off immediately without a 1-minute cool-down
-APU fuel SOV closes
-APU FIRE EXTG button illuminates |
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Term
| What happens if the APU EMER STOP button is not pushed after a fire has been detected? |
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Definition
| After one minute, the APU FIRE EXTG button illuminates |
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Term
| Will the APU fire extinguisher automatically discharge? |
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Definition
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Term
| How many smoke detectors are installed in the cargo compartment? |
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Definition
-3 in the FWD compartment
-2 in the AFT compartment |
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Term
What happens to the forward cargo compartment in the event smoke is detected?
What is the purpose? |
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Definition
-Recirculation fan shuts off
-Ventilation outflow valve closes.
-Prevents oxygen from entering the compartment
-Prevents Halon agent from escaping into the aircraft's cabin. |
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Term
| Hoe many extinguishing bottles are installed for the cargo compartments? |
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Definition
-2 bottles used for both compartments
-1 high-rate and 1 low-rate bottle |
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Term
| What is the difference between the high-rate bottle and the low-rate bottle? |
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Definition
-High-rate bottle saturates the compartment immediately.
-Low-rate bottle maintains saturation over a duration of time. |
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Term
| How long will the low-rate bottle remain active in the compartment? |
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Definition
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Term
| Can on bottle be used for one compartment and the other bottle for the other compartment? |
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Definition
| No. Only one compartment may be selected (FWD or AFT) |
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Term
| What happens when a cargo extinguishing button is pushed if smoke has been detected. |
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Definition
-High-rate bottle discharges immediately
-Low-rate bottle discharges after one minute if the airplane is in flight.
-If airplane is on the ground (weight-on-wheels) the low-rate bottle will NOT automatically discharge. |
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Term
| During flight, can the low-rate bottle be discharged before the minute is up? |
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Definition
| Yes, by pushing the extinguishing button again. |
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Term
| How can the low-rate bottle be discharged if the airplane is on the ground (weight-on-wheels). |
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Definition
| The extinguishing button must be pushed again. |
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Term
| Can cargo extinguishing be used if no smoke is detected? |
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Definition
-Yes, the high-rate bottle extinguishing button must be pushed twice, once to arm the bottle and one to discharge the bottle.
-The low-rate bottle automatically detects discharges after one minute if in flight. |
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Term
| How are lavatories protected from fire? |
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Definition
| Heat-sensitive extinguishers in the lavatory waste bins automatically discharge if a predetermined temperature is reached. |
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