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E170 > Study Guide Fire Protect/Detect > Flashcards

Study Guide Fire Protect/Detect Flashcards

1
Q

What airplane systems have fire detection and protection?

A
  • Engines
  • APU
  • Cargo Compartments
  • Lavatories
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2
Q

Are the cockpit and cabin protected from fire?

A
  • Yes
  • Cockpit 1 hand held Halon fire extinguisher
  • Cabin 4 hand held Halon Fire extinguisher (2 fwd & 2 aft)
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3
Q

How are the engines and APU protected from fire?

A
  • Engines 2 Halon fire bottles

- APU 1 Halon fire bottle dedicated to the APU only

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4
Q

Can both engine fire bottles be used for one engine if needed?

A

Yes

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5
Q

What is the power source for engine and APU fire detection and protection?

A
  • Engine Detection DC ESS
  • Engine Protection HOT BATT
  • APU Detection DC ESS
  • APU Protection DC ESS
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6
Q

Describe the engine and APU fire detection system

A
  • Engine 8 pneumatic fire detectors (2 loops) per engine

- APU 2 pneumatic fire detectors (2 loops)

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7
Q

Describe the fire test

A

-Press and hold the test button on the overhead panel for a minimum of 3 seconds, but no more than 10 seconds is the APU is running or it will automatically shutdown the APU

  • Aural warnings
    • Fire bell
    • Triple chime
  • Visual indications
    • Overhead panel
      • 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)
  • Glare Shield
    • Master warning light (left)
    • Master warning light (right)
  • EICAS
    • 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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8
Q

What happens when an engine fire handle is pulled?

A
  • Closes respective engine fuel SOV
  • Closes respective engine hydraulic SOV
  • Closes respective engine bleed SOV
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9
Q

What is an indication of and APU fire?

A
  • Fire Bell
  • Red Stripe in the EMER STOP button
  • APU FIRE is displayed on the EICAS
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10
Q

Will the APU automatically shutdown if fire detected?

A

Only on the ground

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11
Q

What happens is the APU EMER STOP button IS pushed after a fire has been detected?

A
  • APU shuts off immediatley
  • APU fuel SOV closes
  • APU FIRE EXTG button illuminates
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12
Q

What happens is the APU EMER STOP button is NOT pushed after a fire has been detected?

A

After ONE minute the APU FIRE EXTG button illuminates

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13
Q

Will the APU fire extinguisher automatically discharge?

A

No

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14
Q

How many smoke detectors are installed in the cargo compartments?

A
  • 3 in the FWD compartment

- 2 in the AFT compartment

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15
Q

What happens to the forward cargo compartment in the event smoke is detected?

A
  • Recirculation fan shuts off

- Ventilation outflow valve closes

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16
Q

What is the purpose of the Recirc and ventilation fans shutting off when a smoke in forward cargo?

A
  • Prevents oxygen from entering the compartment

- Prevents Halon agent from escaping into the aircraft’s cabin

17
Q

How many extinguishing bottles are installed for the cargo compartments?

A
  • 2 bottles used for both compartments

- 1 high rate and one low rate bottle

18
Q

What is the difference between the high rate and the low rate bottles?

A
  • High rate bottle saturates the compartment immediately

- Low rate bottle maintains saturation over a duration of time

19
Q

How long will the low rate bottle remain active in the compartment>

A

60 minutes

20
Q

Can one bottle be used for one compartment and the other bottle for the other compartment?

A

No. Only once compartment may be selected (FWD or AFT)

21
Q

What happens when a cargo extinguishing button is pushed IF SMOKE HAS BEEN DETECTED?

A
  • High rate bottles discharge immediately
  • Low rate bottle discharges after one minaret if the airplane is in flight
  • If airplane is not he ground (weight-on-wheels) the low rate bottle will NOT automatically discharge
22
Q

During flight, can the low rate bottle be discharged before the minute is up?

A

Yes, by pushing the extinguishing button again

23
Q

How can the low rate bottle be discharged if the airplane is on the ground (weight on wheels)?

A

The extinguishing button must be pushed again

24
Q

Can cargo extinguishing be used IF NO SMOKE IS DETECTED?

A
  • 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 one minute if in flight
25
Q

How are the lavs protected from fire?

A

Heat sensative extinguishers in the lav waste bins automatically discharge if a predetermined temperature is reached

E170 (15 decks)

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