Hawaiian 787 > Fuel > Flashcards

Fuel Flashcards

(91 cards)

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1
Q

What does it mean when the Forward and Aft Fuel Pump Pressure (PRESS) Lights are illuminated?

A

Fuel pump output pressure is low

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2
Q

What does it mean when the Center Fuel Pump Pressure (PRESS) Lights are illuminated?

A

Fuel pump output pressure is low with the pump selected ON

Illumination is inhibited when the center tank fuel pump switch is selected off

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3
Q

What does the visible bar indicate when the CROSSFEED Switch is ON?

A

The crossfeed valve is selected open

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4
Q

What does it mean when the CROSSFEED VALVE Light is illuminated (amber)?

A

The crossfeed valve is not in the selected position.

This indicates a potential issue with fuel management.

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5
Q

What does the BALANCE Switch being ON indicate?

A

The balance system is selected on.

This allows for the management of fuel distribution between tanks.

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6
Q

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

A
  • System is not commanded ON
  • Off is manually selected
  • 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

These conditions ensure safety and proper fuel management.

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7
Q

What does it indicate when the Fuel BALANCE FAULT Light is illuminated (amber)?

A

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

This requires immediate attention to prevent fuel imbalance.

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8
Q

What happens when the Fuel Jettison NOZZLE Switches are ON?

A

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

This allows for fuel jettisoning during flight to reduce weight.

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9
Q

What does an illuminated amber light on the Fuel Jettison Nozzle VALVE indicate?

A

The jettison nozzle valve is not in the selected position.

This indicates a potential issue that needs to be addressed before proceeding.

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10
Q

What does the Fuel Jettison ARM Switch do when it is ARMED?

A

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

MLW stands for maximum landing weight.

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11
Q

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

A

A system fault has occurred and fuel jettison is inoperative.

This indicates that the fuel jettison system cannot be used.

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12
Q

What happens when the FUEL TO REMAIN Selector is pulled on?

A

Changes the mode from MLW to MAN (manual).

This allows for manual adjustments to the fuel-to-remain quantity.

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13
Q

What does pushing the FUEL TO REMAIN Selector do?

A

Automatically selects the MLW fuel-to-remain quantity.

This provides a quick return to a safe fuel level.

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14
Q

Fill in the blank: The Fuel Jettison FAULT Light indicates that fuel jettison is ______.

A

inoperative.

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15
Q

What triggers the expanded FUEL QTY display?

A

The expanded FUEL QTY display appears for conditions such as:
* 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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16
Q

What does a solid amber fuel imbalance pointer indicate?

A

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

None

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17
Q

Fill in the blank: The expanded fuel quantity display appears when the _______ valve is open.

A

[crossfeed]

None

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18
Q

True or False: The FUEL FLOW ENG alert message contributes to the display of expanded fuel quantity.

A

True

None

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19
Q

What alert messages can cause the expanded FUEL QTY display to appear?

A

The alert messages include:
* FUEL IN CENTER
* FUEL QTY LOW
* FUEL LOW CENTER
* FUEL FLOW ENG
* INSUFFICIENT FUEL
* FUEL IMBALANCE

None

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20
Q

When will the fuel imbalance pointer be displayed?

A

The fuel imbalance pointer is displayed next to the low tank quantity during fuel imbalance conditions.

None

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21
Q

Fill in the blank: A fuel imbalance pointer is displayed on the expanded fuel quantity display next to the _______ quantity.

A

[low tank]

None

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22
Q

What indicates a solid white fuel imbalance pointer?

A

The FUEL IMBALANCE message is not displayed and the main tank fuel differs by more than 200 pounds, and either the crossfeed valve is open or the balance system is ON.

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23
Q

What causes the FUEL IMBALANCE message to be displayed?

A

The difference in fuel quantity varies with total main tank fuel quantity.

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24
Q

What does it mean if the pointer flashes?

A

Fuel balance or crossfeed is going in the wrong direction.

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25
What happens when fuel is back in balance within 200 pounds?
FUEL BALANCED replaces FUEL QTY on the expanded fuel quantity display and flashes for 5 seconds.
26
Fill in the blank: A solid white fuel imbalance pointer is shown if the main tank fuel differs by more than _______ pounds.
200
27
What is the default fuel quantity for fuel jettison to remain?
The fuel quantity that leaves the airplane at maximum landing weight (MLW) when jettison is complete ## Footnote This ensures the aircraft is within safe landing parameters.
28
What happens to the fuel temperature and static air temperature displays when fuel jettison is armed?
They are replaced by the fuel to remain display ## Footnote This indicates the current status of the fuel jettison system.
29
What action must be taken to change the quantity of fuel to remain?
Rotate the FUEL TO REMAIN selector ## Footnote This adjustment allows pilots to set specific fuel levels for landing.
30
Fill in the blank: The FUEL TO REMAIN selector must be _____ to change the quantity of fuel to remain.
pulled on
31
Where is the total fuel quantity displayed?
Primary EICAS display
32
What additional display shows tank quantities and total fuel quantity?
FUEL synoptic display
33
What happens to fuel indications during non-normal conditions?
Expanded fuel indications are displayed
34
What can cause fuel quantity indications to fluctuate significantly?
High pitch maneuvers, such as takeoff and go-around, especially at low fuel loads
35
How is fuel temperature normally displayed on the EICAS?
In white
36
What color indicates that fuel temperature approaches maximum or freeze temperature?
Amber
37
What replaces the EICAS display static air temperature and fuel temperature during jettison?
TO REMAIN quantity
38
What is displayed on the fuel synoptic display regarding fuel temperature?
Fuel temperature and minimum fuel temperature
39
How many AC-powered fuel pumps does each fuel tank contain?
Two
40
Can a single fuel pump supply sufficient fuel to operate one engine?
Yes
41
What type of pumps are the two center tank fuel pumps?
Override/jettison pumps
42
What is the output pressure of the center tank pumps compared to the main tank pumps?
Higher output pressure
43
What do the center tank pumps do in relation to the main tank pumps?
Override the main tank pumps
44
What happens when the main tank fuel pump switches are off?
The switch PRESS lights illuminate and the EICAS advisory messages FUEL PUMP (L, R, FWD, or AFT) display.
45
What is inhibited when the center fuel pump switches are off?
The switch PRESS lights and pump pressure EICAS messages.
46
What does the fuel system automatically determine based on available electrical power?
The best pumps to operate.
47
What indicates that a fuel pump has load shed?
The pump switch PRESS light is illuminated and the pump is labeled LOAD SHED on the fuel synoptic.
48
What type of fuel pump is located in the left main tank?
A DC-powered fuel pump.
49
How does the DC-powered fuel pump operate?
Automatically to provide fuel to the APU when AC power is not available and the APU selector is ON.
50
What is the function of surge tanks in each wing?
To drain fuel in the surge tanks and fuel remaining in the refueling manifold into the main tanks.
51
What should be done with the main tank pump switches before start?
They should all be pushed ON.
52
What action should be taken if the FUEL IN CENTER message is displayed?
The center tank pump switches should be pushed ON.
53
What should be done when the FUEL LOW CENTER message displays during flight?
The center tank pump switches should be pushed off.
54
What occurs if a center pump has low output pressure?
The fuel pump switch PRESS light illuminates and the message FUEL PUMP CENTER (L or R) displays.
55
When does the scavenge system operate to transfer center tank fuel to the main tanks?
When either main tank quantity is less than approximately 35,000 pounds and the center tank pumps are off.
56
What inhibits the fuel transfer from center tank to main tanks?
If the engine is on suction feed.
57
What is suction feed in the context of fuel pump operation?
Each engine can draw fuel from its corresponding main tank through a suction feed line that bypasses the pumps.
58
What happens to dissolved air in the fuel as the airplane climbs?
It is released from the fuel due to the decrease in air pressure.
59
What potential issue can arise at high altitude due to air collecting in the suction feed line?
Thrust deterioration or engine flameout due to fuel flow reduction.
60
What happens to the dissolved air in the fuel tank after reaching cruise altitude?
The dissolved air in the fuel tank eventually depletes ## Footnote The depletion time is dependent upon airplane altitude, fuel temperature, and type of fuel.
61
What should the engine operate on after the dissolved air is depleted?
Suction feed
62
How can fuel pressure be provided to both engines?
By opening the fuel crossfeed valve
63
How are the fuel manifolds arranged?
Any fuel tank pump can supply either engine
64
What happens to the crossfeed valve during normal operations?
The crossfeed valve is closed
65
What does the closed crossfeed valve do?
Isolates the left and right systems
66
What indicates a disagreement between the valve position and switch position?
CROSSFEED switch VALVE light illuminates and EICAS advisory message FUEL CROSSFEED displays
67
How is fuel transferred from one main tank to another?
By pushing the fuel balance switch ON
68
What happens when fuel is transferred from the higher quantity main tank?
It is transferred through its defuel/isolation valve to the lower quantity main tank through its inboard refuel valve
69
When does the fuel transfer stop?
Automatically when fuel is balanced
70
What occurs if the fuel balance system is selected ON and balance is not achieved?
The balance system shuts down and the BALANCE switch FAULT light illuminates
71
What advisory message displays when the fuel balance system fails or is inhibited?
EICAS advisory message FUEL BALANCE SYS
72
What are some reasons fuel balance operation is inhibited? (List at least three)
* Refueling * Defueling and ground transfer of fuel * A center tank pump is on * On the ground with one or both engines running * In flight with fuel jettison system active or FUEL DISAGREE/FUEL QTY LOW message shows
73
What alert message displays when there is a fuel imbalance?
EICAS alert message FUEL IMBALANCE
74
What is the primary method for fuel balancing in Hawaiian Airlines' 787?
Fuel balancing is accomplished by using either the fuel balance system or the manual crossfeed.
75
How is manual crossfeed initiated?
Manual crossfeed is initiated by opening the crossfeed valve and turning off the fuel pump switches for the fuel tank that has the lower quantity.
76
In what phases of flight can manual crossfeed be performed?
Crossfeed may be done in any phase of flight.
77
How is the fuel balance system activated?
The fuel balance system is initiated by pushing the fuel balance switch.
78
Can the fuel balance system be used on the ground?
Yes, it can be used on the ground if the engines are shutdown and the APU is running.
79
True or False: The fuel balance system can only be used during flight.
False
80
What is the total fuel weight in pounds for the Hawaiian Airlines 787?
223,646 pounds ## Footnote This weight is derived from the total fuel capacity and fuel density.
81
How much does the Left Main tank weigh when full?
36,984 pounds ## Footnote This is the weight of the fuel in the Left Main tank.
82
How much does the Right Main tank weigh when full?
36,984 pounds ## Footnote This weight is the same as the Left Main tank.
83
What is the weight of the Center tank when full?
149,678 pounds ## Footnote This weight significantly contributes to the overall weight.
84
What does the fuel jettison system allow?
Jettison from all fuel tanks, main-tank-only, or center-tank-only ## Footnote The selection depends on operating conditions and configuration.
85
What initiates the fuel jettison process?
Pushing the FUEL JETTISON ARM switch to select ARMED ## Footnote The system automatically sets the fuel-to-remain to the maximum landing weight (MLW) fuel quantity.
86
How can the TO REMAIN quantity be adjusted?
Pull on and rotate the TO REMAIN selector ## Footnote This allows manual decrease or increase of the TO REMAIN quantity.
87
What occurs when the FUEL JETTISON ARM switch is armed and a fuel jettison NOZZLE switch is pushed ON in flight?
The defuel/isolation valves and jettison isolation valves open ## Footnote The fuel system automatically positions the valves as required to jettison fuel based on the selected TO REMAIN quantity.
88
What is displayed in flight when the jettison arm switch is positioned ON?
Jettison time in minutes on the fuel synoptic ## Footnote Jettison automatically stops when a value just above the FUEL TO REMAIN quantity is reached.
89
What is the minimum fuel that remains in each main tank after jettison is complete?
At least 8700 pounds of fuel ## Footnote This requirement ensures safety and compliance with landing weight regulations.
90
What is the purpose of the nitrogen enriched air produced by the NGS?
To displace fuel vapors in all fuel tanks
91
How does nitrogen enriched air affect fuel flammability?
Minimizes fuel flammability during normal flight and ground operations
Hawaiian 787
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