CH12 FUEL Flashcards

1
Q

What does the ON position of the fuel pump switch indicate?

A

The fuel pump is selected ON.

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2
Q

What does the OFF position of the fuel pump switch indicate?

A

The fuel pump is selected off.

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3
Q

What does an illuminated amber light for Forward and Aft Fuel Pump Pressure indicate?

A

Fuel pump output pressure is low.

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4
Q

What does an illuminated amber light for Center Fuel Pump Pressure indicate?

A

Fuel pump output pressure is low with the pump selected ON.

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5
Q

Under what condition is the illumination of the Center Fuel Pump Pressure light inhibited?

A

When the center tank fuel pump switch is selected off.

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6
Q

What does the ON position of the CROSSFEED switch indicate?

A

The crossfeed valve is selected open.

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7
Q

What does the OFF position of the CROSSFEED switch indicate?

A

The crossfeed valve is selected closed.

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8
Q

What does an illuminated amber CROSSFEED VALVE light indicate?

A

The crossfeed valve is not in the selected position.

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9
Q

What does the ON position of the BALANCE switch indicate?

A

The balance system is selected on.

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10
Q

What are the conditions under which the BALANCE switch can be OFF?

A
  • System is not commanded ON
  • Off is manually selected
  • Fuel balance is automatically commanded off for one of the following:
    • Fuel is balanced
    • Jettison system is active
    • FUEL DISAGREE message is displayed
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11
Q

What does the BALANCE Switch do when it is ON?

A

The balance system is selected on.

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12
Q

What does it mean when the BALANCE Switch is OFF?

A

The system is not commanded ON, off is manually selected.

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13
Q

When is the fuel balance automatically commanded OFF?

A

When one of the following occurs:
* fuel is balanced
* jettison system is active
* FUEL DISAGREE message is displayed
* FUEL QTY LOW message is displayed
* airplane is on ground and either engine running

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14
Q

What does an illuminated (amber) Fuel BALANCE FAULT Light indicate?

A

A system fault has occurred and the fuel balance system is inoperative.

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15
Q

What is the purpose of the Fuel Jettison System?

A

To manage fuel levels by jettisoning fuel.

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16
Q

What does the FUEL JETTISON NOZZLE control?

A

It controls the fuel jettison operation.

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17
Q

What does the term ‘ARMED’ signify in the context of the fuel jettison system?

A

The jettison system is ready to operate.

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18
Q

Fill in the blank: The Fuel Jettison System should not be activated at _______.

A

FLAPS 30

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19
Q

True or False: The Fuel Jettison System can be activated while in the ‘DO NOT JETT AT FLAPS 30’ state.

A

False

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20
Q

What happens when the Fuel Jettison NOZZLE Switch is ON?

A

The jettison nozzle valve is selected open in flight and opens main tank defuel/isolation valves and center tank jettison isolation valves if jettison is armed.

This is a critical function for managing fuel during flight.

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21
Q

What does it indicate when the Fuel Jettison Nozzle VALVE Lights are illuminated (amber)?

A

The jettison nozzle valve is not in the selected position.

This alerts the crew to a potential issue with the fuel jettison system.

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22
Q

What does the Fuel Jettison ARM Switch do when ARMED?

A

It arms the jettison system and initializes fuel-to-remain at the MLW fuel quantity.

This is essential for ensuring safe landing conditions.

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23
Q

What occurs when the Fuel Jettison ARM Switch is OFF?

A

It disarms the jettison system.

This indicates that the jettison operation cannot proceed.

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24
Q

What does it mean when the Fuel Jettison FAULT Light is illuminated (amber)?

A

A system fault has occurred and fuel jettison is inoperative.

Immediate attention is required to resolve the fault.

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25
Q

What is the function of the FUEL TO REMAIN Selector when PULL ON?

A

It changes the mode from MLW (maximum landing weight) to MAN (manual).

This allows for manual adjustment of fuel levels.

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26
Q

How does rotating the FUEL TO REMAIN Selector clockwise affect the fuel quantity?

A

It increases the MANUAL fuel-to-remain quantity.

Precise control over fuel management is critical during flight.

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27
Q

What happens when the FUEL TO REMAIN Selector is rotated counterclockwise?

A

It decreases the MANUAL fuel-to-remain quantity.

This allows the crew to adjust fuel levels as needed.

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28
Q

What does pushing the FUEL TO REMAIN Selector do?

A

Automatically selects the MLW fuel-to-remain quantity.

This ensures that the aircraft maintains the necessary fuel for safe landing.

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29
Q

What conditions trigger the expanded FUEL QTY display?

A

The expanded FUEL QTY display appears for the following conditions:
* crossfeed valve open
* one or more fuel tank quantity indications are inoperative
* the FUEL IN CENTER alert message is displayed
* the FUEL QTY LOW alert message is displayed
* the FUEL LOW CENTER alert message is displayed
* the FUEL FLOW ENG alert message is displayed
* the INSUFFICIENT FUEL alert message is displayed
* the FUEL IMBALANCE alert message is displayed
* the airplane is on the ground and both engine(s) off
* the balance system is active
* the balance system is selected on and fuel is already balanced

None

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30
Q

What indicates a fuel imbalance on the expanded fuel quantity display?

A

A fuel imbalance pointer is displayed next to the low tank quantity for the following conditions:
* Solid amber pointer: FUEL IMBALANCE message displayed
* Solid white pointer: FUEL IMBALANCE message not displayed, main tank fuel differs by more than 100 kilograms, and either crossfeed valve is open or balance system is ON

None

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31
Q

What happens when fuel is back in balance within 100 kilograms?

A

When fuel is back in balance within 100 kilograms and the crossfeed valve is open or the balance system is ON, FUEL BALANCED replaces FUEL QTY on the expanded fuel quantity display and flashes for 5 seconds.

None

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32
Q

True or False: A solid amber fuel imbalance pointer indicates that the FUEL IMBALANCE message is not displayed.

A

False

A solid amber pointer indicates that the FUEL IMBALANCE message is displayed.

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33
Q

What is the significance of the pointer flashing in the context of fuel balance?

A

The pointer flashes if fuel balance or crossfeed is going in the wrong direction.

None

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34
Q

Fill in the blank: The difference in fuel quantity which causes the FUEL IMBALANCE message to be displayed varies with total _______.

A

[main tank fuel quantity]

None

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35
Q

What does the fuel jettison indication display when ARMED?

A

The fuel quantity that leaves the airplane at maximum landing weight (MLW) when jettison is complete

This ensures the aircraft can land safely after fuel jettisoning.

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36
Q

What happens to the fuel temperature and static air temperature displays when fuel jettison is ARMED?

A

They are replaced by the fuel to remain display

This change is part of the fuel jettison system’s operational protocol.

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37
Q

What does the fuel to remain MAN (manual) selection indicate?

A

The fuel jettison system is ARMED and the FUEL TO REMAIN selector is pulled on

This allows the pilot to manually adjust the fuel quantity to remain.

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38
Q

How can the quantity of fuel to remain be changed?

A

By rotating the FUEL TO REMAIN selector

This provides flexibility in managing fuel levels during jettison.

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39
Q

How is the fuel synoptic display accessed?

A

By pushing the systems (SYS) display switch and selecting the FUEL synoptic key

Refer to Display Select Panel in Chapter 10, Section 10 for additional details.

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40
Q

What do the fuel flow bars indicate?

A

They represent a configuration of valve positions, switch positions, and pump status

Actual fuel flow is not sensed or displayed.

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41
Q

Is actual fuel flow sensed or displayed in the fuel system?

A

False

Fuel flow bars do not represent actual system operation.

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42
Q

What is the total fuel quantity displayed?

A

23.2 KGS X 1000

This figure represents the total fuel available for the aircraft.

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43
Q

What is indicated when the FUEL TO REMAIN selector is pulled on?

A

The fuel jettison system is ARMED

This action is crucial for initiating the jettison process.

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44
Q

Fill in the blank: The fuel jettison indications display the fuel quantity that leaves the airplane at _______.

A

maximum landing weight (MLW)

This is vital for ensuring safe landing conditions.

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45
Q

What type of information does the fuel synoptic display provide?

A

Information regarding fuel flow bars based on valve positions, switch positions, and pump status

It is essential for monitoring the fuel system’s configuration.

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46
Q

What does a white fuel valve symbol indicate?

A

Fuel valve is closed.

Indicates that the valve is not allowing fuel to flow.

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47
Q

What does a green fuel valve symbol indicate?

A

Fuel valve is in transit or open.

Green indicates either the valve is moving to an open position or is already open.

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48
Q

What does an amber fuel valve symbol with a crossout indicate?

A

Fuel valve is failed; commanded open but remains closed or commanded closed but remains open.

This indicates a malfunction in the valve operation.

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49
Q

What does a gray fuel valve symbol indicate?

A

Fuel valve state is invalid.

This suggests that the system cannot determine the status of the valve.

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50
Q

What is displayed in the Fuel Synoptic Display?

A

Fuel Synoptic Indications.

This display shows the operational status of the fuel valves.

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51
Q

What does the amber fuel valve symbol indicate when it is commanded open?

A

Valve is failed; remains closed.

This indicates an issue where the valve should be open but is not functioning correctly.

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52
Q

What does the amber fuel valve symbol indicate when it is commanded closed?

A

Valve is failed; remains open or in transit.

This indicates a malfunction where the valve should be closed but is not.

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53
Q

What does a white fuel valve symbol indicate?

A

Fuel valve is closed.

Indicates that the valve is not allowing fuel to flow.

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54
Q

What does a green fuel valve symbol indicate?

A

Fuel valve is in transit or open.

Green indicates either the valve is moving to an open position or is already open.

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55
Q

What does an amber fuel valve symbol with a crossout indicate?

A

Fuel valve is failed; commanded open but remains closed or commanded closed but remains open.

This indicates a malfunction in the valve operation.

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56
Q

What does a gray fuel valve symbol indicate?

A

Fuel valve state is invalid.

This suggests that the system cannot determine the status of the valve.

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57
Q

What is displayed in the Fuel Synoptic Display?

A

Fuel Synoptic Indications.

This display shows the operational status of the fuel valves.

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58
Q

What does the amber fuel valve symbol indicate when it is commanded open?

A

Valve is failed; remains closed.

This indicates an issue where the valve should be open but is not functioning correctly.

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59
Q

What does the amber fuel valve symbol indicate when it is commanded closed?

A

Valve is failed; remains open or in transit.

This indicates a malfunction where the valve should be closed but is not.

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60
Q

What indicates that the fuel pump switch is ON?

A

Fuel Pump (green rectangle)

This indicates that the fuel pump is actively engaged.

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61
Q

What does a fuel pump switch ON with a pressure sensor detecting pressure greater than 7 to 8 psig indicate?

A

Fuel Pump (green rectangle with line)

This indicates that the fuel pump is operating normally and providing sufficient pressure.

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62
Q

What does a white rectangle for the fuel pump indicate?

A

Fuel pump switch is OFF

This shows that the fuel pump is not operational.

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63
Q

What does the amber rectangle with a crossout signify for the fuel pump?

A

Fuel pump failed or pressure sensor detects pressure less than 7 to 8 psig

This indicates a critical failure or insufficient pressure.

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64
Q

What is indicated by a gray rectangle for the fuel pump?

A

Fuel pump state is invalid

This suggests that the system cannot determine the status of the fuel pump.

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65
Q

What does the green indication for Normal Fuel Feed represent?

A

Fuel line is pressurized; pressure sensor detects pressure greater than 7 to 8 psig

This indicates that fuel is being properly supplied to the system.

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66
Q

What does it mean when the fuel pump has been load shed?

A

Fuel Pump load shed (white)

Indicates that the fuel pump is ON but has been limited in function due to system constraints.

67
Q

What does the amber indication in the fuel synoptic display signify?

A

Suction feed; fuel line is unpressurized and suction flow is occurring.

This indicates that the fuel system is experiencing a condition where the fuel is being drawn from the tank without pressure.

68
Q

What does a white indication represent in the total fuel display?

A

Normal indication.

This indicates that the total fuel quantity is within acceptable limits.

69
Q

What does the ‘FUEL QTY LOW’ message indicate?

A

Fuel tank quantity is low.

This alert is triggered when the fuel quantity in the tank falls below a predefined threshold.

70
Q

What does a blank tank quantity indicate?

A

Invalid indication or any individual tank quantity blank.

This could point to a malfunction in the fuel measurement system or a communication error.

71
Q

What alert message is displayed when fuel is insufficient?

A

INSUFFICIENT FUEL alert message is displayed.

This alert warns the crew that the fuel levels are critically low and may affect flight operations.

72
Q

What is indicated by an amber main tank quantity display?

A

Fuel tank quantity is low.

This alert serves as a warning that the fuel levels are approaching the minimum required for safe operation.

73
Q

Fill in the blank: The total fuel quantity is represented in _______.

A

[white]

This indicates that the total fuel quantity is being monitored and is within the normal range.

74
Q

What does the ‘TOTAL’ label signify in the fuel synoptic display?

A

Indicates the total amount of fuel available in the aircraft.

This includes the sum of fuel from all tanks and is critical for flight planning.

75
Q

What does the term ‘suction feed’ refer to in the context of the fuel system?

A

A condition where the fuel line is unpressurized and fuel is drawn by suction.

This system is important for ensuring fuel is available to the engines under various operational conditions.

76
Q

True or False: A blank indication in the tank quantity means the fuel tank is full.

A

False

A blank indication typically represents an invalid reading rather than a full tank.

77
Q

What color indicates normal indication for Center Tank Quantity?

A

White

78
Q

What message is displayed when the Center Tank Quantity reaches 149.0 and the indication is amber?

A

FUEL IN CENTER

79
Q

What does the FUEL LOW CENTER message indicate?

A

Center fuel tank quantity is low

80
Q

What does the amber pointer signify in terms of fuel imbalance?

A

FUEL IMBALANCE is displayed

81
Q

What does the white pointer indicate regarding the crossfeed switch?

A

The crossfeed switch is ON or the balance switch is ON and the main tank quantities differ by more than 200 lbs (or 100 kgs)

82
Q

What does a balanced indication in fuel display represent?

A

Flashes once fuel is within 200 lbs (or 100 kgs) of balanced

83
Q

What is the normal indication for Minimum Fuel Temperature?

A

Temperature displayed white

84
Q

Fill in the blank: Minimum Fuel Temperature is the Fuel Freeze Temperature plus _______.

A

3 degrees

85
Q

What is the function of the fuel system in the B787?

A

The fuel system supplies fuel to the engines and the APU.

86
Q

Where is fuel contained in the B787?

A

Fuel is contained in a center tank, and left and right main tanks.

87
Q

How is fuel quantity measured in the B787?

A

Fuel quantity is measured by sensors in each tank.

88
Q

Where is the total fuel quantity displayed in the B787?

A

Total fuel quantity is displayed on the primary EICAS display.

89
Q

What additional information is displayed on the FUEL synoptic display?

A

Tank quantities and total fuel quantity.

90
Q

What happens to expanded fuel indications in non-normal conditions?

A

Expanded fuel indications showing the left main, center, and right main tank quantities are displayed.

91
Q

What does a blank display indicate for fuel temperature?

A

Invalid indication.

92
Q

What does white fuel temperature indicate?

A

Normal indication; the lowest of three tank temperatures.

93
Q

What does amber fuel temperature indicate when no ‘-‘ is displayed?

A

High fuel temperature indication.

94
Q

What does amber fuel temperature indicate when ‘-‘ is displayed?

A

Low fuel temperature indication.

95
Q

What is the significance of the MEN FUEL TEMP display?

A

It indicates invalid temperature indication when displayed as blank.

96
Q

Fill in the blank: The fuel system includes the _______ tank.

A

center

97
Q

True or False: The fuel temperature is displayed in three colors.

A

True

98
Q

How is fuel quantity measured in the B787?

A

By sensors in each tank

Total fuel quantity is displayed on the primary EICAS display and tank quantities on the FUEL synoptic display.

99
Q

What happens to fuel quantity indications during high pitch maneuvers?

A

They can fluctuate significantly

This is especially true during takeoff and go-around, particularly at low fuel loads.

100
Q

What color is the fuel temperature displayed in under normal conditions?

A

White

It turns amber when it approaches maximum or freeze temperatures.

101
Q

What do the fuel pumps in each tank provide?

A

Sufficient fuel to operate one engine under all conditions

Each tank contains two AC-powered fuel pumps.

102
Q

What are the center tank fuel pumps used for?

A

Override/jettison pumps

They have a higher output pressure than the left and right main tank fuel pumps.

103
Q

What happens when the main tank fuel pump switches are off?

A

PRESS lights illuminate and EICAS advisory messages display

Messages indicate which fuel pump is affected (L, R, FWD, or AFT).

104
Q

What does it mean if a fuel pump is labeled LOAD SHED?

A

The pump has been load shed due to insufficient electrical power

Indications include the pump switch PRESS light being illuminated.

105
Q

What type of fuel pump is in the left main tank?

A

DC-powered fuel pump

It operates automatically to provide fuel to the APU when AC power is not available.

106
Q

What is the purpose of surge tanks in the B787?

A

To drain fuel into the main tanks

They are provided in each wing, outboard of each main tank.

107
Q

Before engine start, what should be done with the main tank pump switches?

A

They should all be pushed ON

If the FUEL IN CENTER message is displayed, the center tank pump switches should also be ON.

108
Q

What should be done with the main tank pump switches before start?

A

All main tank pump switches should be pushed ON.

109
Q

What action is required if the FUEL IN CENTER message is displayed?

A

The center tank pump switches should also be pushed ON.

110
Q

When should the center tank pump switches be pushed off during flight?

A

When the FUEL LOW CENTER message displays.

111
Q

What happens if a center pump has low output pressure?

A

The fuel pump switch PRESS light illuminates and the message FUEL PUMP CENTER (L or R) displays.

112
Q

What is the purpose of the scavenge system?

A

To transfer any remaining center tank fuel to the main tanks.

113
Q

When does fuel transfer from the center tank to the main tanks begin?

A

When either main tank quantity is less than approximately 16,000 kilograms and the center tank pumps are off.

114
Q

What inhibits the fuel transfer system?

A

If the engine is on suction feed.

115
Q

What is suction feed?

A

A method where each engine can draw fuel from its corresponding main tank through a suction feed line that bypasses the pumps.

116
Q

What may happen as the airplane climbs regarding dissolved air?

A

Dissolved air is released from the fuel, which may collect in the suction feed line and restrict fuel flow.

117
Q

What can occur at high altitude due to fuel flow reduction?

A

Thrust deterioration or engine flameout.

118
Q

What happens to dissolved air in the fuel tank at cruise altitude?

A

It eventually depletes.

119
Q

How can fuel pressure be provided to both engines?

A

By opening the fuel crossfeed valve.

120
Q

What is the effect of continued crossfeed use?

A

It results in a progressive fuel imbalance.

121
Q

What is the normal position of the crossfeed valve during operations?

A

Closed.

122
Q

What indicates a disagreement between the crossfeed valve position and switch position?

A

The CROSSFEED switch VALVE light illuminates and the EICAS advisory message FUEL CROSSFEED displays.

123
Q

What is the purpose of the fuel balance system?

A

To transfer fuel from main tank to main tank.

124
Q

How is fuel transfer initiated in the fuel balance system?

A

By pushing the fuel balance switch ON.

125
Q

What happens when fuel is balanced during the transfer process?

A

Transfer stops automatically.

126
Q

What occurs if the fuel balance system fails to achieve balance?

A

The system shuts down, the BALANCE switch FAULT light illuminates, and the EICAS advisory message FUEL BALANCE SYS is displayed.

127
Q

What inhibits fuel balance operation?

A

Refueling, defueling, and ground transfer of fuel.

128
Q

What inhibits fuel balance operation?

A

Fuel balance operation is inhibited for reasons such as:
* Refueling
* Defueling
* Ground transfer of fuel
* Fuel balance system failure
* Center tank pump is on
* Engines running on the ground
* Fuel jettison system active in flight
* FUEL DISAGREE or FUEL QTY LOW message displayed

These conditions prevent the fuel balance system from functioning to ensure safety and operational integrity.

129
Q

What EICAS alert message displays when there is a fuel imbalance?

A

FUEL IMBALANCE

This alert indicates that the fuel quantity in left and right main tanks differs by a predetermined quantity.

130
Q

How is fuel balancing accomplished?

A

Fuel balancing is accomplished using:
* Fuel balance system
* Manual crossfeed

The choice between these methods depends on the situation and phase of flight.

131
Q

What is the process to initiate manual crossfeed?

A

Manual crossfeed is initiated by:
* Opening the crossfeed valve
* Turning off the fuel pump switches for the tank with lower quantity

Manual crossfeed can be performed in any phase of flight.

132
Q

When can the fuel balance system be initiated?

A

The fuel balance system can be initiated by pushing the fuel balance switch in any phase of flight, including on the ground if the engines are shutdown and the APU is running

This flexibility allows for effective fuel management during various operational states.

133
Q

Fill in the blank: The fuel balance system is used when the _______ is running.

A

APU

The APU must be running for the fuel balance system to be used on the ground with shutdown engines.

134
Q

List the fuel tank locations mentioned.

A

Fuel tank locations include:
* Surge Tank
* Main Tank

Understanding the locations of fuel tanks is crucial for managing fuel distribution and balance.

135
Q

What is the fuel capacity of the Left Main tank in liters?

A

20,895 liters

This refers to the usable fuel capacity at level attitude.

136
Q

What is the fuel capacity of the Right Main tank in kilograms?

A

16,776 kilograms

This is the usable fuel capacity at level attitude.

137
Q

What is the total fuel capacity of the B787 in liters?

A

126,356 liters

This total includes the capacities of all fuel tanks.

138
Q

What is the fuel capacity of the Center tank in kilograms?

A

67,889 kilograms

This is the usable fuel capacity at level attitude.

139
Q

What is the total fuel capacity of the B787 in kilograms?

A

101,451 kilograms

This total includes the capacities of all fuel tanks.

140
Q

Fill in the blank: The usable fuel density is _______ kg per liter.

A

0.8029 kg per liter

141
Q

What components are included in the B787 fuel system schematic?

A

L PUMPS, R PUMPS, CENTER PUMPS, FUEL CROSSFEED, BALANCE

These components manage the distribution and transfer of fuel among tanks.

142
Q

True or False: The fuel tank capacities of the Left Main and Right Main tanks are the same.

A

True

143
Q

What is the total usable fuel capacity of the B787 in liters and kilograms?

A

126,356 liters and 101,451 kilograms

These values represent the total fuel capacity across all tanks.

144
Q

From where is APU fuel supplied?

A

APU fuel is supplied from the left fuel manifold

APU fuel can be provided by any AC fuel pump supplying fuel to the left fuel manifold or by the left main tank DC fuel pump.

145
Q

What happens to the DC pump when the APU switch is ON and no AC power is available?

A

The DC pump runs automatically

With AC power available, the left aft AC fuel pump operates automatically, regardless of fuel pump switch position, and the DC fuel pump turns off.

146
Q

How is fuel jettison accomplished?

A

By opening the center tank jettison isolation valves and the main tank defuel/isolation valves

Fuel flows into the jettison/refuel manifold and is then jettisoned overboard through jettison nozzle valves inboard of each aileron.

147
Q

What is the first step to initiate fuel jettison?

A

Pushing the FUEL JETTISON ARM switch to select ARMED

The jettison system automatically sets the fuel-to-remain to the maximum landing weight (MLW) fuel quantity.

148
Q

What replaces fuel temperature on the EICAS display during jettison?

A

TO REMAIN quantity

The TO REMAIN quantity can be manually adjusted using the TO REMAIN selector.

149
Q

What happens when the FUEL JETTISON ARM switch is armed and either fuel jettison NOZZLE switch is pushed ON in flight?

A

The defuel/isolation valves and jettison isolation valves open

The fuel system automatically positions the valves as required to jettison fuel based on the selected TO REMAIN quantity.

150
Q

Can the nozzles open on the ground?

A

No, the nozzles cannot open on the ground

This restriction applies regardless of switch positions.

151
Q

What is displayed on the fuel synoptic when jettisoning fuel in flight?

A

Jettison time in minutes

This display occurs when the jettison arm switch is positioned on while in the air.

152
Q

When does the fuel jettison automatically stop?

A

When a value just above the FUEL TO REMAIN quantity is reached

The system then closes the defuel/isolation valves and the jettison isolation valves.

153
Q

How much fuel must remain in each main tank after jettison is complete?

A

At least 3900 kilograms of fuel

This requirement ensures safety and operational integrity.

154
Q

What is the purpose of the Nitrogen Generation System (NGS) in the B787?

A

Provides automatic full-time flammability protection for the fuel system by generating nitrogen enriched air to displace fuel vapors in all fuel tanks.

155
Q

How does the Nitrogen Generation System (NGS) enhance safety during flight operations?

A

Minimizes fuel flammability during normal flight and ground operations.

156
Q

What EICAS message may indicate insufficient fuel in the B787?

A

INSUFFICIENT FUEL

157
Q

What conditions trigger the ‘FUEL AUTO JETTISON’ EICAS message?

A

Occurs when the total fuel quantity is less than the FUEL TO REMAIN and a jettison nozzle valve is open or the fuel jettison automatic shutoff has failed.

158
Q

What does the ‘FUEL BALANCE ON’ EICAS message indicate?

A

The fuel balance function is active.

159
Q

What does the ‘FUEL BALANCE SYS’ EICAS message indicate?

A

The fuel balance system has failed.

160
Q

Fill in the blank: The Nitrogen Generation System generates _______ enriched air.

A

nitrogen

161
Q

True or False: The Nitrogen Generation System operates only during flight.

A

False

162
Q

List the EICAS messages related to fuel management.

A
  • INSUFFICIENT FUEL
  • FUEL AUTO JETTISON
  • FUEL BALANCE ON
  • FUEL BALANCE SYS
163
Q

What chapter in the documentation discusses ‘Fuel Monitoring’?

A

Chapter 11, Section 32

164
Q

What chapter details EICAS Messages?

A

Chapter 11, Section 60