Fire And Overheat Protection Atlas

Question 1

Which system has fire detection but does not have fire protection?

Answer 1

The main wheel well

Question 2

Which components have overheat detection?

Answer 2

The engines and pneumatic ducts

Question 3

What indicates a fault in one of the fire detection loops?

Answer 3

An EICAS STATUS message

Question 4

How many fire detectors are in the cargo compartment and how do they work?

Answer 4

It is a dual smoke particles sensor system. So long as both detectors are operational both must detect smoke to trigger an indication

Question 5

What occurs automatically when an APU fire is detected on the ground?

Answer 5

The APU shut down

Question 6

What occurs when a single fault is detected on an engine fire detection loop during test?

Answer 6

The system reconfigures for single detector operation

Question 7

What results when faults are detected on both loops in an engine fire detection system?

Answer 7

FIRE/OVHT SYSTEM advisory EICAS message

Question 8

What warning indications are tested during a fire detection system test?

Answer 8

Fire warning bell
Discreet lights
Master warning lights

Question 9

Which detectors are checked when the ENG/APU/CARGO FIRE OVHT TEST switch is pushed?

Answer 9

Engines
Cargo
APU

Question 10

When will the firelight extinguish in the engine fire handle?

Answer 10

When the fire signal no longer exists

Question 11

What does pulling the engine fire switch do?

Answer 11

Silences the fire warning bell
Closes the associated engine spar valves
Shuts off the hydraulic fluid to the engine driven hydraulic pump
Trips the associated generator field and breaker;
And arms the fire extinguishers

Question 12

What should you do if the engine fire switch cannot be pulled out during an engine fire?

Answer 12

Push the fire override switch
Pull the handle

Question 13

What is accomplished by rotating the engine fire switch to the stop?

Answer 13

Discharges selected fire extinguisher into the respective engine nacelle

Question 14

When will the APU BTL DISCH light be eliminated?

Answer 14

When the APU fire extinguisher has been discharged

Question 15

How long should you wait before discharging the second fire extinguisher bottle into an engine that continues to have an illuminated fire warning light?

Answer 15

30 seconds

Question 16

Where is the APU remote control panel located?

Answer 16

Nosewheel struct

Question 17

What does pushing the nose strut mounted APU shut down switch do?

Answer 17

Shut down the APU
Silence the APU fire warning horn

Question 18

When does the APU fire warning light extinguish?

Answer 18

When the fire signal no longer exists

Question 19

What happens to an operating APU when the fire switch is pulled out?

Answer 19

Silences the fire warning bell
Closes the APU fuel valve
Trips the APU generator field and breaker
Closes the APU bleed air valve
Arms the APU fire extinguisher
Shuts down the APU immediately if the auto shut down feature failed or if the handle was pulled with no fire indication

Question 20

When is the fire bell and warning light inhibited?

Answer 20

During take off from nose gear extension to 400 feet or 20 seconds

Question 21

When will the AFT cargo fire warning lights go out?

Answer 21

When smoke is no longer detected

Question 22

What does pushing the FWD cargo compartment armed switch do on the 767–300 passenger?

Answer 22

Turns off the recirculation fans
Arms the extinguishing squibs
Silences is the fire Bell
Closes the associated heat valves
Turns off the nitrogen generating system
Commands the packs to high flow

Question 23

Where do all fire protection systems receive their power from?

Answer 23

The hot battery bus

Question 24

How many fire bottles are installed for engine fire protection? Can both be fired into the same engine?

Answer 24

Two bottles, Both maybe used for the same engine

Question 25

What occurs when the cargo bottle discharge switch is pushed?

Answer 25

Number one bottle is discharged immediately
Number two bottle fires later at a reduced rate.
Eventually both CARGO BTL1 and CARGO BTL2 EICAS messages will be shown

Question 26

Fire suppression in the main deck cargo compartment is accomplished by pushing the MAIN ARMED switch followed by the DEPR/DISCH switch. What do these actions accomplish?

Answer 26

This depressurises the aircraft and attempts to starve the main deck fire of oxygen needed to burn

Question 27

How can you silence the fire bell?

Answer 27

Push either Master CAUTION/WARNING reset switch or pulling the fire switch