Fire Protection

Question 1

What are all the different locations that can detect/protect against fire?

Answer 1

The engines
The APU
The cargo compartments
Both lavatories

Question 2

(T/F) Each cargo compartment has a separate extinguishing system

Answer 2

False. There is one extinguishing system for both compartment, which is built around 2 fire extinguishing bottles

Question 3

(T/F) The lavatory waste bin is equipped with a fire extinguisher that will automatically deploy in the event of a fire

Answer 3

True

Question 4

The engine fire detection system is equipped with a ____ (single/dual) loop system

Answer 4

Dual

Question 5

(T/F) Both loops are required to detect a fire for the bell to sound, under normal conditions

Answer 5

True

Question 6

(T/F) Both loops are required for dispatch of an aircraft, this is because both loops must detect a fire and if one is inop. the bell would never go off, even if the engine is on fire.

Answer 6

False. If one loop is inoperative and the operative loop detects a fire the bell will sound

Question 7

What would ENG X FIRE DET FAIL mean as an EICAS message?

Answer 7

Both fire detection loops have failed

Question 8

What are ALL the indications of an engine fire?

Answer 8

MASTER WARN will illuminate
Fire bell will sound
ENG X FIRE on EICAS
FIRE on ITT spool on EICAS
Red light in fire handle

Question 9

Pressing the TEST button on the fire panel will do what?

Answer 9

Illuminate both fire handles
Illuminate both FWD and AFT cargo smoke buttons
Illuinate APU FIRE button
MASTER WARNING
ENG 1 FIRE on EICAS
ENG 2 FIRE on EICAS
APU FIRE on EICAS
CRG FWD SMOKE
CRG AFT SMOKE
Aural fire bell
FIRE on both ENG 1 and 2 ITT on EICAS

Question 10

Performing the fire test with the APU running should not last more than __ seconds, otherwise the APU will shut-down

Answer 10

10 seconds

Question 11

There are a total of ___ bottles for the engine fire extinguishing system

Answer 11

2

Question 12

What message on EICAS will appear when an engine fire bottle has been discharged

Answer 12

ENG FIREXBTL A(B) DISCH

Blue

Question 13

The APU fire detection system has __ loops with ___ detector

Answer 13

2 loops with 1 detector. They detect fire in the same area

Question 14

If there is an APU fire, what are ALL the indications?

Answer 14

APU FIRE on EICAS
Fire bell
MASTER WARNING
Red bar on APU EMER STOP

Question 15

What happens when you push the APU EMER STOP if the APU is on fire?

Answer 15

The switch will change from a red bar to a white bar

The APU FIRE button will illuminate

Question 16

If the MAU doesn’t detect the EMER STOP button pushed within ___ seconds the APU FIRE button will illuminate

Answer 16

60 seconds

Question 17

When on the ground, if the APU detects a fire it will automatically shutdown if the EMER STOP button is not pressed within ___ seconds

Answer 17

10 seconds

Question 18

APU FIRE DET FAIL on EICAS means what?

Answer 18

Both APU fire loops have failed

Question 19

There is ___ fire extinguishing bottles for the APU

Answer 19

1

Question 20

APU FIREX FAIL on EICAS means what?

Answer 20

Some part of the APU fire bottle has failed

Question 21

When the APU EMER STOP button is pressed, what message should appear on EICAS?

Answer 21

APU FUEL SOV CLOSED

Question 22

What message should appear on EICAS when you discharge the APU fire bottle?

Answer 22

APU FIREXBTL DISCH

Question 23

In the rear cargo compartment, smoke must be detected by ___ smoke detectors in order to get an alarm

Answer 23

2

Question 24

What are ALL the indications of a fire in the rear cargo compartment?

Answer 24

MASTER WARNING
Fire bell
AFT CARGO SMOKE button illuminates
CRG AFT SMOKE on EICAS in red
CRG AFT FIREX HI ARM on EICAS in blue

Question 25

What happens if only one detector in the FWD cargo compartment detects smoke?

Answer 25

The Re-circulation fan is shut off for 60 seconds. If in the next 45 seconds another smoke detector detects smoke the fire is considered confirmed
If no smoke is detected in the 45 second window the system is considered failed

Question 26

(T/F) If only one smoke detector is operative in each compartment and it detects smoke, it will give a warning to the cockpit immediately

Answer 26

True

Question 27

CRG AFT (FWD) FIRE SYS FAIL on EICAS means what?

Answer 27

All the smoke detectors in the respective compartment are failed

This is a caution message

Question 28

CRG FIRE PROT FAULT on EICAS means what?

Answer 28

A smoke detector is faulty and you’re on the ground. There is still at least one detector left in that compartment

Question 29

If you see CRG FWD VENT FAIL message during a fire test, this means what?

Answer 29

The FWD cargo vent fan did not shut down during the test

Question 30

What is the difference between the high rate discharge and the low rate discharge bottles in the cargo compartments?

Answer 30

The high rate will fill the cargo compartment with the necessary halon to extinguish the fire

The low rate will prevent reignition of a fire for up to 60 minutes.

Question 31

When you have a cargo fire warning,

Pushing the cargo fire button once does what?

Pushing it a second time does what?

Answer 31

The first push will deploy the high rate discharge bottle into the respective cargo compartment. The low rate will arm and automatically discharge after one minute.

Pushing the cargo button a second time bypasses the one minute delay for the low rate discharge bottle and discharges it immediately

Question 32

What happens if you push the cargo fire button without a cargo fire warning?

Answer 32

The first push will arm the bottle. It will automatically disarm after 2 minutes. If you push the button a second time it will automatically discharge the HRD bottle. If in flight the LRD bottle will fire automatically after 4 minutes. If on the ground a third push of the button will fire the bottle

Question 33

What EICAS message would you see if there was smoke in the lavatory?

Answer 33

LAV SMOKE in red

This would also have a master warning sound

Question 34

If a lavatory smoke test is conducted the master warning and EICAS message will remain for ___ seconds after releasing the test button

Answer 34

7 seconds

Question 35

What does LAV SMOKE FAIL on EICAS mean?

Answer 35

The lavatory smoke fire test failed

Question 36

The waste bin fire extinguisher will automatically discharge at ___C

Answer 36

78 C

Question 37

The landing gear overheat detection is a ___ (single/dual) loop system

Answer 37

Dual