Fire Protection

Question 1

How many Fire Detection Loops are installed in each Engine and the APU?

Answer 1

2

Question 2

Fire detection and protection is available in which areas?

Answer 2

Engines, APU, cargo compartments, and Lavatory

Question 3

Overheat detection is available in which areas?

Answer 3

Engines

Question 4

What areas have fire detection but no protection?

Answer 4

Crew rest and main gear wheel wells

Question 5

What happens if one APU fire loop detects a fire?

Answer 5

The APU fire warning activates , APU shuts down, and if on the ground, the APU fire bottle automatically discharges

Question 6

On N570-577UP, if any cargo fire switch is armed what communication equipment is no longer available?

Answer 6

Both SATCOM radios

Question 7

Which cockpit APU fire warning can be cancelled?

Answer 7

Master warning lights

Question 8

Which air system is used to induce airflow through the cargo smoke detectors on the freighter aircraft?

Answer 8

Center bleed air duct

Question 9

What does the EICAS message >DET FIRE/OHT 1 mean?

Answer 9

Engine fire or overheat detection loops A and B have failed in engine 1

Question 10

When will the EICAS FIRE warning message no longer be displayed?

Answer 10

If the fire condition no longer exists

Question 11

When do the Engine Fire Switches automatically unlock?

Answer 11

• When the Fuel Control switch is in cutoff,
  or
• For an Engine Fire warning.

Question 12

On the BCF what happens when a Lower Cargo Compartment Fire DISCH switch is pressed?

Answer 12

Tow fire extinguisher bottles discharge immediately and the remaining 4 meter out over a period of 334 minutes or touchdown, whichever occurs first

Question 13

What happens when either the FWD or AFT Cargo Fire switch is selected to ARMED?

Answer 13

• Turns off 2 packs,
• arms lower cargo compartment fire extinguishers,
• configures equipment cooling to override mode,
• turns off all airflow and heat into lower cargo compartments,
• closes master trim air valve

Question 14

How many fire extinguisher bottles are installed on the BCF for Lower Cargo Compartment fire protections?

Answer 14

6

Question 15

For any given engine, how many fire extinguisher bottles can be discharged into one engine?

Answer 15

2

Question 16

Assuming the dual loop fire /overheat detector is operating normally, how many loops must detect an overheat condition to cause the OVHT ENG 1,2,3,4 NAC caution message to be displayed?

Answer 16

Both

Question 17

For the APU dual loop fire detector how many loops must detect a fire if both loops are operating normally?

Answer 17

1

Question 18

Which wheelwells have fire detection

Answer 18

Main gear

Question 19

Which fuel valves are closed if an engine fire switch is pulled?

Answer 19

Engine and spar

Question 20

What happens automatically if the APU detects a fire inflight?

Answer 20

APU shuts down

Question 21

What happens if only one loop of a cargo compartment smoke detector detects smoke?

Answer 21

Nothing, both loops must detect smoke in order to activate a warning in the cockpit

Question 22

How many fire extinguisher bottles are installed on the Freighter for Lower Cargo Compartment fire protection?

Answer 22

4

Question 23

If one Fire or Overheat Loop on an engine fails, will a fire be detected?

Answer 23

Yes, the system will automatically reconfigure fire and overheat loops to single loop operation

Question 24

When will an engine fire switch unlock?

Answer 24

Override switch is depressed and light is illuminated in the engine fire switch

Question 25

Which of the following will not happen when an engine fire switch is pulled?

Answer 25

Fire bell will silence

Question 26

Fire bottle A on the left wing can be discharged into which engine?

Answer 26

1 or 2 only

Question 27

What indication is available to confirm an Engine Fire Bottle has discharged?

Answer 27

• BTL_DISCH light near the engine fire switch will illuminate
  and
• EICAS advisory alert message >BTL LOW_ENG_ will be displayed.

Question 28

What happens if smoke is detected in the Lavatory?

Answer 28

An aural warning will sound

Question 29

How many Dual Loop Smoke Detectors do the FWD and AFT Lower Lobe Cargo Compartments have?

Answer 29

4

Question 30

How many fire bottles does the APU have?

Answer 30

1

Question 31

Sample air is drawn through the Freighter main deck smoke detectors using?

Answer 31

Center bleed duct

Question 32

What are the indication of a main deck fire?

Answer 32

• MAIN DECK illuminated in the Main Deck Fire Arm Switch
  and
• FIRE NM DK FWD, MID, or AFT or FIRE MAIN DECK EICAS warning alert message,
• fire bell, and
• Master warning light

Question 33

How many fire extinguisher bottles does the BCF have for the forward and aft cargo compartments?

Answer 33

6

Question 34

What happens to the packs when the main deck fire arm switch is armed?

Answer 34

Packs 2 and 3 shutdown

Question 35

After arming the main deck fire arm switch what occurs when the DEPRESS switch is pushed?

Answer 35

Cabin depressurizes to 25,000’

Question 36

What indications are present if smoke is detected in a Lower Lobe Cargo Compartment?

Answer 36

• FWD or AFT illuminated in the Lower Cargo Fire Arm Switch and
• fire bell and master warning light

Question 37

The main deck on the Freighter has ____ dual loop smoke detectors?

Answer 37

16

Question 38

On the Freighter, what happens when the Lower Lobe Cargo Compartment Fire DISCH Switch is pressed?

Answer 38

2 fire extinguisher bottles discharge immediately and the remaining two meter out over a period of 210 minutes or touchdown, whichever occurs first