Fire Protection

Question 0

When a fire is detected, which lights are illuminated

Answer 0

The associated fire handle and the master warning lights

Question 1

What does the fire protection system provide

Answer 1

– Engine fire detection
– Engine fire extinguishing
– Continuous Built-In Tests to detect internal faults.

Question 2

Which valves close when you pull the engine fire handles

Answer 2

– the engine fuel shutoff valve;

– the engine hydraulic shutoff valves and;

– the engine bleed air shutoff valve

Question 3

What is the power source for the fire detection system

Answer 3

– Engine fire detection: 
MAU 1 (DC ESS BUS 1) and MAU 3 (DC ESS BUS 2)

Question 4

What is the power source for fire extinguishing

Answer 4

– Engine fire extinguishing:

HOT BATT BUS 1 and HOT BATT BUS 2

Question 5

How many loops monitor the fire detection system

Answer 5

2

Question 6

What is the power source for APU fire detection

Answer 6

– APU fire detection: 
MAU 1 (DC ESS BUS 1) and MAU 3 (DC ESS BUS 2).

Question 7

What is the power source for APU fire extinguishing

Answer 7

– APU fire extinguishing:

DC ESS BUS 2.

Question 8

How many loops are in the APU fire detection system

Answer 8

2

Question 9

Which lights illuminate when an APU fire is detected

Answer 9

– the red stripped bar of the APU emergency stop button illuminates;

– the master WARNING lights illuminate

Question 10

What happens when the APU FIRE EXTINGUISHER button is pressed

Answer 10

– discharges the APU fire bottle.

– shuts down the APU through the APU FADEC.

– closes the APU fuel shutoff valve (SOV).

– displays an EICAS ADVISORY message APU FIREX BTL DISCH

Question 11

How many fire bottles are installed for the APU

Answer 11

1

Question 12

What happens In the case of fire and 1 min has passed without APU EMER STOP pushbutton has been pressed

Answer 12

the APU fire extinguisher pushbutton illuminates

Question 13

When will the APU shut down on the ground for fire reasons

Answer 13

10 seconds after a fire is present

Question 14

How many smoke detectors in the forward cargo

Answer 14

3

Question 15

How many smoke detectors in the aft cargo

Answer 15

2

Question 16

What happens automatically when smoke is detected in the forward cargo

Answer 16

The air circulation fan automatically turns off
The ventilation outflow valve closes
The FWD fire extinguishing bottle is armed

Question 17

What happens automatically when smoke is detected in the aft cargo bay

Answer 17

– The AFT fire extinguishing bottle is armed.

Question 18

What is the Cargo Fire Extinguishing System is comprised of

Answer 18

1 high-rate bottle
1 low-rate bottle

Both bottles are located in the center avionics bay and can be discharged to either cargo bay

Question 19

After the annunciation of smoke detection in the cargo compartment, pressing the associated cargo compartment button causes:

Answer 19

– the high-rate fire-extinguishing bottle to discharge immediately into the selected cargo compartment.

– the EICAS ADVISORY message CRG FIREX HI DISCH to display.

One minute later, the second fire-extinguishing bottle discharges automatically if in flight

Question 20

How long does the low-rate bottle take to discharge and how long does the airplane have for a diversion

Answer 20

75 mins / 60 mins for diversion

Question 21

Will the low-rate cargo bottle discharge automatically on the ground

Answer 21

No, crew must press the button once

Question 22

How does the crew discharge the high-rate bottle if there isn’t a smoke warning? The low-rate?

Answer 22

Push the respective cargo fire extinguisher button twice within 2 mins.
The low rate will discharge automatically after 1 min if in flight.
To discharge the low-rate after the high-rate bottle while on the ground, push the button once.

Question 23

What happens if smoke is detected in either lav

Answer 23

– the master WARNING lights illuminate.
– the EICAS WARNING message LAV SMOKE is displayed.
– in the lavatory where the smoke has been detected an alarm sounds and the smoke detector light comes on.
– a flashing orange light on the respective attendant lights panel (rainbow lights) illuminates

Question 24

How are the lav fire extinguishers activated

Answer 24

Automatically when the temp reaches a certain temperature

Question 25

Where are the lav fire extinguishers located

Answer 25

In the waste continer

Question 26

What is the caution to keep in mind when pressing the fire detection test button

Answer 26

The APU will shut down if the button is pressed for 10 sec