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Flashcards in Fire Protection Deck (28)
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0
Q

How many detector loops are there in the engine

A

2

1
Q

How is the engine fire system powered

Detection and

Extinguishing

A
Detection-  MAU1( DC ESS bus 1)
And MAU3(DC ESS bus 2)

Extinguishing- hot batt bus 1 and 2

2
Q

What happens when a engine
fire is detected

4

A

Aural warning

Lights- fire handle and master warning

EICAS- fire warning light in respective ITT INDICATOR

EICAS warning msg ENG 1/2 fire is displayed

3
Q

What happens when you pull the fire handle

3

A

Closes
Engine fuel shutoff valve
Engine hydraulic shutoff valve
Engine bleed shutoff valve

4
Q

How many fire extinguishing bottles are there

A
  1. A and B
5
Q

How do you discharge bottle A

A

Pull fire handle and rotate counter clockwise

6
Q

How do you discharge bottle B

A

Pull fire handle and rotate clockwise

7
Q

Describe APU fire protection system

A

Provides fire detection
Extinguishing
And continuos built in test

8
Q

How is APU fire system powered

A

Detection

MSU 1 ( DC ESS bus 1) and MAU3 ( DC ESS bus 2)

Extinguishing

DC ESS bus 2

9
Q

How many detection loops in the APU

A

2

10
Q

What happens when APU fire is detected

A

Aural warning
Master warning light
Red striped bar of APU emergency stop button illuminates

EICAS - warning msg APU fire

11
Q

What happens when you push the APU fire extinguisher button

A

Discharges APU bottle

APU FADEC shuts down APU

Closes the APU fuel feed shutoff

Displayed EICAS MSG - APU fired btl disch

12
Q

Will APU auto shutdown on ground because of fire

A

Yes after 10 seconds

13
Q

How many smoke detectors in forward cargo

A

3

14
Q

How many smoke detectors in aft cargo

A

2

15
Q

What happens with a cargo smoke indication

A

All.

Aural warning

Lights-
Master warning
Associated cargo extinguishing compartment button illuminates

EICAS

CRG AFT SMOKE
CRG FWD SMOKE

Appropriate bottle is armed

If forward compartment —

air circulation fan turns off and forward ventilation outflow valve closes

16
Q

Which cargo compartment can hold live animals

A

Forward

17
Q

How many bottles for the cargo departments

A
  1. One high rate and one slow rate

Both located in center Avionics bay

18
Q

How long will low rate cargo bottle provide protection

A

60 mins

19
Q

How will the cargo bottles discharge

In flight

A

High rate. Push button once

Low rate will discharge after 1 minute unless you push button sooner

20
Q

How will cargo bottles discharge

On ground

A

High rate. Push button

Low rate must push button again
Not automatic

21
Q

Can you discharge the cargo fire bottles without an EICAS msg

A

Yes, by pushing the respective button twice

22
Q

How is lav fire detection provided

A

One smoke sensor in each ceiling

23
Q

If smoke is detected in lav what indications

A

Master warning light

EICAS msg LAV smoke

Alarm in the LAV and flashing red light

Flashing amber light on FA rainbow panel

24
Q

Does the LAV have fire extinguishing

A

Yes, In each trash bin

Automatic after a certain temp limit is reached

25
Q

What does the fire detection system test button do

A

Tests the engine fire detection
APU fire detection
And CRG smoke detection

26
Q

What is a successful test of fire detection system

A

Fire aural warnings sound
Master warning lights flash
Fire extinguisher handle lights steady
Cargo fire extinguisher buttons lights steady
APU fire extinguisher button and upper half of APU emergency stop button illuminates

EICAS msgs (5)

Eng fire 1
Eng fire 2
APU fire
CRG aft smoke
CRG fwd smoke

EICAS indications

Fire warning light in ITT illuminates

Forward cargo compartment fan turns off and outflow valve closes

27
Q

What happens if you hold the fire detection button for 10 seconds

A

APU shutdown