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787 > CH8 FIRE PROTECTION > Flashcards

CH8 FIRE PROTECTION Flashcards

1
Q

What does the amber Engine Bottle Discharged (ENG BTL DISCH) light indicate?

A

The extinguisher bottle is discharged or has low pressure.

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2
Q

What happens when the Engine Fire Switch is in the ‘Out’ position?

A
  • Arms both engine fire extinguishers
  • Closes the associated engine and spar fuel valves
  • Closes the associated engine anti-ice valves
  • Trips the associated engine generators off
  • Shuts off hydraulic fluid to the associated engine driven hydraulic pump
  • Depressurizes the associated engine driven hydraulic pump
  • Removes power to the thrust reverser isolation valve
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3
Q

What does rotating the Engine Fire Switch to position 1 or 2 do?

A

Discharges the selected fire extinguisher into the engine.

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4
Q

What do illuminated red Engine Fire Warning Lights indicate?

A
  • An engine fire is detected
  • The FIRE/OVERHEAT TEST switch is pushed
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5
Q

What is the function of the Engine and APU Fire Override Switches when pushed?

A

Unlocks the fire switch.

This allows for manual intervention in fire suppression procedures.

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6
Q

Fill in the blank: The Engine Fire Switch is mechanically locked in the _______ position.

A

[In]

UNLOCKS AUTO FOR FIRE WARNING OR WHEN FUEL CONTROL SW IN CUTOFF

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7
Q

What indicates that an associated engine fire is detected?

A

Illuminated (red) FIRE CONTROL Switch Fire Warning Lights

The warning lights are also illuminated when the FIRE/OVERHEAT TEST switch is pushed.

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8
Q

True or False: The FIRE/OVERHEAT TEST switch is used to test fire detection systems.

A

True

This switch can also illuminate the fire warning lights.

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9
Q

Fill in the blank: The _____ indicates that the fire suppression system for either the forward or aft cargo area is armed.

A

ARMED

The indicator shows whether the fire suppression system is ready to activate.

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10
Q

What does the APU Bottle Discharge (APU BTL DISCH) Light indicate?

A

The extinguisher bottle is discharged or has low pressure

Illuminated in amber

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11
Q

What is the function of the APU Fire Switch in the ‘Out’ position?

A
  • Arms the APU fire extinguisher bottle
  • Closes the APU fuel valve
  • Closes the APU air inlet door
  • Trips the APU generator field and generator breaker
  • Shuts down the APU (if automatic shutdown does not occur)

The APU Fire Switch is mechanically locked in the normal position

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12
Q

What happens when the APU Fire Switch is rotated?

A

Discharges the APU fire extinguisher into the APU compartment

Can be rotated in either direction

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13
Q

What does the APU Fire Warning Light indicate when illuminated?

A
  • An APU fire is detected
  • The FIRE/OVERHEAT TEST switch is pushed

Illuminated in red

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14
Q

True or False: The APU automatically shuts down for a detected fire.

A

True

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15
Q

What does the CARGO FIRE ARM switch do when ARMED?

A

It arms all cargo fire extinguisher bottles and performs multiple actions including:
* Arms the selected compartment extinguisher valve
* Turns off both lower recirculation fans
* Shuts down cargo heat
* Commands the packs to provide minimum air flow for pressurization
* Shuts down the bulk cargo compartment ventilation system (aft cargo fire only)
* Shuts down the lavatory/galley vent fan (aft cargo fire only)
* Puts associated equipment cooling system into override mode
* Turns off miscellaneous equipment cooling fan (forward cargo fire only)
* Shuts off in-flight entertainment equipment cooling
* Turns off Nitrogen Generation System (NGS)
* Shuts off door 4 galley chiller units (aft cargo fire only)
* Outflow valves move to 50/50 flow split for air flow stability
* Turns off zonal dryer fans

The actions performed by the CARGO FIRE ARM switch are critical for managing fire safety in cargo compartments.

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16
Q

What is the normal position of the CARGO FIRE ARM switch?

A

Off (blank)

The ‘Off’ position indicates that the cargo fire protection system is not actively engaged.

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17
Q

What does an illuminated (red) CARGO FIRE warning light indicate?

A

It indicates that:
* Associated cargo compartment smoke is detected
* The FIRE/OVERHEAT TEST switch is pushed

These warnings are crucial for alerting crew to potential fire hazards.

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18
Q

What does the CARGO FIRE Discharge (DISCH) Switch do?

A

Push - discharges the fire extinguisher bottles into the ARMED cargo compartment.

The bulk cargo compartment is included in the AFT cargo fire extinguishing system.

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19
Q

What does an illuminated CARGO FIRE Discharge (DISCH) Light indicate?

A

The fire extinguishers have discharged.

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20
Q

What is the function of the FIRE / Overheat (OVHT) TEST Switch?

A

Push and hold - sends fire/overheat test signals to the engine, APU, wheel well, and cargo compartment fire detector systems.

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21
Q

What does the FIRE / Overheat (OVHT) TEST Switch also test?

A

Tests flight deck fire and overheat indications.

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22
Q

Fill in the blank: The APU Ground Control Fire Protection Panel includes the APU BOTTLE _______.

A

DISCHARGE

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23
Q

True or False: The CARGO FIRE Discharge Switch is used to activate the fire extinguishers in the cargo compartment.

A

True

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24
Q

What does an illuminated APU FIRE Light indicate?

A

An APU fire is detected or a fire/overheat test is in progress

The APU automatically shuts down for a detected fire.

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25
Q

What is the function of the APU BOTTLE DISCHARGE Switch?

A

Discharges the APU fire extinguisher into the APU compartment.

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26
Q

What happens when the APU FIRE SHUTDOWN Switch is pushed?

A

Shuts down the APU and arms the APU fire extinguisher.

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27
Q

What does an illuminated APU FIRE BOTTLE ARMED Light signify?

A

The APU fire extinguisher is armed.

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28
Q

True or False: The APU will continue to operate if a fire is detected.

A

False

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29
Q

What systems are included in the fire detection and extinguishing systems?

A

APU, cargo compartments, engines, lavatories

APU stands for Auxiliary Power Unit.

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30
Q

What type of detection system is present in the main gear wheel wells?

A

Fire detection system, no fire extinguishing system

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31
Q

Which compartments have a fire detection system but no fire extinguishing system?

A

Overhead flight crew rest compartment, overhead flight attendant rest compartment

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32
Q

What are the two main components of engine fire protection?

A

Engine fire and overheat detection, engine fire extinguishing

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33
Q

How many dual-channel detector assemblies are there in each engine nacelle?

A

Multiple

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34
Q

What is required for an engine fire warning or overheat caution to be triggered?

A

At least one element on each channel must detect a fire or overheat condition

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35
Q

What happens if a fault is detected in one channel of the engine’s detection system?

A

The remaining channel element automatically switches to single channel operation

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36
Q

True or False: The engine fire detection system provides fire warning and overheat caution with only one channel operational.

A

True

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37
Q

Fill in the blank: The fire detection system in the _______ has no fire extinguishing system.

A

main gear wheel wells

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38
Q

What happens if both main engine detector elements on a single assembly are faulted?

A

No fire or overheat detection is provided

The EICAS advisory message DET FIRE ENG (L or R) is displayed if the engine fire detection system fails.

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39
Q

What are the indications of an engine fire?

A
  • The fire bell sounds
  • The master WARNING lights illuminate
  • The EICAS warning message FIRE ENG (L or R) is displayed
  • The engine fire switch LEFT or RIGHT fire warning light illuminates
  • The engine fire switch unlocks
  • The engine FUEL CONTROL (L or R) switch fire warning light illuminates
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40
Q

What are the indications of an engine overheat?

A
  • The caution beeper sounds
  • The master CAUTION lights illuminate
  • The EICAS caution message OVERHEAT ENG (L or R) is displayed
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41
Q

Fill in the blank: If the engine fire detection system fails, the EICAS advisory message _______ is displayed.

A

DET FIRE ENG (L or R)

42
Q

True or False: The fire bell sounds when an engine overheat is detected.

A

False

The fire bell sounds when an engine fire is detected, not an overheat.

43
Q

What illuminates when an engine fire is detected?

A
  • The master WARNING lights
  • The engine fire switch LEFT or RIGHT fire warning light
  • The engine FUEL CONTROL (L or R) switch fire warning light
44
Q

What is the function of the engine fire switch during a fire indication?

A

It unlocks and illuminates the respective fire warning light

45
Q

How many fire extinguisher bottles are there for the engines?

46
Q

What happens when the engine fire switch is pulled out?

A

Discharges a single extinguisher bottle into the associated engine

47
Q

What occurs when the engine fire switch is rotated in the other direction?

A

Discharges the remaining extinguisher bottle into the same engine

48
Q

What indication occurs if an extinguisher bottle is discharged or has low pressure?

A

The ENG BTL (1 or 2) DISCH light illuminates

49
Q

What EICAS advisory message is displayed if a fire extinguisher bottle is discharged?

A

BOTTLE (1 or 2) DISCH ENG

50
Q

What components make up APU fire protection?

A

APU fire detection and APU fire extinguishing

51
Q

How many fire detector loops are in the APU compartment?

A

Dual fire detector loops

52
Q

Is there APU overheat detection?

53
Q

What must happen for a fire warning to be produced in the APU?

A

Both loops must detect a fire

54
Q

What happens if a fault is detected in one loop of the APU fire detection system?

A

The system switches to single loop operation

55
Q

What EICAS advisory message is displayed if the APU fire detection system fails?

A

DET FIRE APU

56
Q

Which indications occur during an APU fire warning? (List any three)

A
  • Fire bell sounds
  • Master WARNING lights illuminate
  • EICAS warning message FIRE APU is displayed
57
Q

What happens to the APU fire switch during a fire warning?

A

The APU fire switch fire warning light illuminates and unlocks

58
Q

How many APU fire extinguisher bottles are there?

59
Q

What happens when the APU fire switch is pulled out?

A

Rotating the switch in either direction discharges the extinguisher bottle into the APU compartment

60
Q

What indications occur if the APU extinguisher bottle is discharged or has low pressure?

A
  • APU BTL DISCH light illuminates
  • EICAS advisory message BOTTLE DISCH APU is displayed
61
Q

What occurs when an APU fire signal is detected?

A

The APU shuts down immediately and the extinguisher bottle is automatically discharged after a 15 second delay

62
Q

What is the purpose of the 15 second delay after an APU fire signal?

A

To allow time for the fuel valve to close

63
Q

What happens on the ground with both engines off when an APU fire signal is detected?

A

APU shutdown and extinguisher bottle discharge occurs

64
Q

Does the main wheel well have a fire extinguishing system?

65
Q

What does the main wheel well fire and overheat detection system consist of?

A

Dual detector channels

66
Q

What are the indications for a main wheel well overheat?

A
  • Caution beeper sounds
  • Master CAUTION lights illuminate
  • EICAS caution message OVERHEAT WHEEL WELL is displayed
67
Q

What are the indications for a main wheel well fire?

A
  • Fire bell sounds
  • Master WARNING lights illuminate
  • EICAS warning message FIRE WHEEL WELL is displayed
68
Q

Fill in the blank: The nose wheel well does not have a _______.

A

[fire or overheat detection system]

69
Q

What are the two main systems of cargo compartment fire protection?

A

Cargo compartment smoke detection and cargo compartment fire extinguishing

The bulk cargo compartment is included in the AFT cargo fire detection and extinguishing systems.

70
Q

How many smoke detectors are installed in the forward cargo compartment?

A

Eighteen detectors

The aft cargo compartment has nine detectors and the bulk cargo compartment has two.

71
Q

What is required for a cargo fire warning to be triggered in a cargo compartment?

A

Two smoke detectors in the same cargo compartment must detect a fire or overheat condition at the same time

If one detector fails, a single detector can still cause a fire warning.

72
Q

What happens if smoke is detected in the aft cargo compartment?

A

Power is removed from the HF radios

73
Q

What is displayed on the EICAS when cargo compartment smoke detection is inoperative?

A

The advisory message DET FIRE CARGO (FWD or AFT)

74
Q

What are the indications of a cargo compartment fire?

A

Fire bell sounds, master WARNING lights illuminate, EICAS warning message FIRE CARGO (FWD or AFT) is displayed, and CARGO FIRE (FWD or AFT) fire warning light illuminates

75
Q

How many fire extinguisher bottles are installed for cargo compartment fire extinguishing?

A

Five fire extinguisher bottles

76
Q

What action arms the cargo fire extinguishers?

A

Pushing the FWD or AFT CARGO FIRE ARM switch

77
Q

What duration of cargo fire suppression is provided for ETOPS operation?

A

330-minute ETOPS operation

78
Q

What is the most limiting cargo fire suppression system time?

A

300 minutes

79
Q

What happens in flight when a fire warning is triggered from the cargo fire detection system?

A

Immediate total discharge of two extinguisher bottles into the affected compartment

80
Q

What occurs after a 15 minute time delay during a cargo fire in flight?

A

The remaining three extinguisher bottles discharge at a reduced flow rate

81
Q

What happens if the airplane lands within the 15 minute time delay after a cargo fire warning?

A

Only one of the remaining bottles discharges at the reduced rate on touchdown

82
Q

What activates the extinguishing system in flight?

A

Pushing the CARGO FIRE DISCHARGE switch

83
Q

What occurs on the ground when the CARGO FIRE DISCHARGE switch is pushed?

A

Three extinguisher bottles discharge simultaneously into the selected compartment

84
Q

What is the flow rate of the third bottle when discharged on the ground?

A

Reduced flow rate

85
Q

What happens when the first two extinguisher bottles begin to discharge?

A

CARGO FIRE DISCHARGE switch light illuminates and EICAS advisory message BOTTLE DISCH CARGO is displayed

86
Q

What indicates smoke in the overhead flight crew rest compartment?

A

EICAS caution message SMOKE REST UPR DR 1

87
Q

What indicates smoke in the overhead flight attendant rest compartment?

A

EICAS caution message SMOKE REST UPR DR 4

88
Q

What systems are included in lavatory fire protection?

A
  • Lavatory fire detection
  • Lavatory waste container fire extinguishing
89
Q

What occurs when smoke is detected in a lavatory?

A

An aural alert sounds, lavatory call light flashes, and EICAS advisory message SMOKE LAVATORY is displayed

90
Q

How many smoke detectors are installed in each lavatory?

91
Q

What is the function of the fire extinguisher bottle in each lavatory?

A

Discharges through two nozzles into the waste container

The extinguisher operation is automatic and there is no flight deck indication.

92
Q

How does the fire and overheat detection system perform fault testing?

A

Through automatic and manual fault testing

The system continuously monitors for faults in various loops.

93
Q

What does the automatic fault test in the fire and overheat detection system monitor?

A

Engine and APU systems, cargo and wheel well systems

These systems continuously monitor the fire/overheat detector loops.

94
Q

What happens if a fault is detected in the fire and overheat detection system?

A

The system automatically reconfigures for single loop operation

Complete system failures trigger an EICAS advisory message.

95
Q

Name the EICAS advisory messages for complete system failures.

A
  • DET FIRE ENG (L or R)
  • DET FIRE APU
  • DET FIRE CARGO (FWD or AFT)
96
Q

How can the fire and overheat detection systems be tested manually?

A

By pushing and holding the FIRE/OVERHEAT TEST switch

This initiates a manual test of the detection system.

97
Q

What indicates a manual fire and overheat detection system test is in progress?

A

The fire bell sounds
The nose wheel well crew call horn sounds (on the ground)
The EICAS warning message FIRE TEST IN PROG is displayed
Master WARNING lights illuminate
LEFT and RIGHT engine fire warning lights illuminate
APU fire warning light illuminates
Nose wheel well APU fire warning light illuminates
FWD and AFT CARGO FIRE warning lights illuminate
LEFT and RIGHT FUEL CONTROL switch fire warning lights illuminate

These indications confirm that the test is active and functioning properly.

98
Q

What happens when the manual fire and overheat detection system test is complete?

A

The EICAS warning message FIRE TEST PASS or FIRE TEST FAIL replaces the FIRE TEST IN PROG message
The switch can be released

The completion of the test provides feedback on the system’s operational status.

99
Q

What messages are displayed with the FIRE TEST FAIL message?

A
  • DET FIRE ENG (L or R)
  • DET FIRE APU
  • DET FIRE CARGO (FWD or AFT)
  • DET FIRE WHEEL WELL
100
Q

What occurs when the test switch is released while the FIRE TEST IN PROG message is displayed?

A

The test ends without completing

This indicates that the system did not finish the test process.

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