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is available for EICAS.
EICAS DISPLAY
13.3 13.3
FUEL QTY
1000
52.2
38.1
4.0
10.0
38.1
4.0
KGS X
1
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
12.10.6 D6-30151-425
Fuel -
Controls and Indicators
Fuel Synoptic Display
The fuel synoptic is displayed by pushing the Fuel Synoptic Display switch on the
display select panel. Display select panel operation is described in Chapter 10,
Flight Instruments, Displays.
The fuel flow displayed is generated by displayed valve positions and pump status.
It does not display actual fuel flow, therefore the display may not represent actual
system operation.
1 CenterWing Tank Pump
White - pump switch off.
Green - pump on.
Amber - pump pressure low.
NO FUEL FLOW
FUEL FLOW (green)
4.0
38.1
10.0
4.0
38.1
52.2
KGS X 1000
1
2 3
CENTER 4
MAIN 1
MAIN 2 MAIN 3
MAIN 4
RES 2 RES 3
STAB
TOTAL FUEL 173.0
13.3 13.3
SECONDARY EICAS DISPLAY
6
2
1
3
4
5
7
8
December 01, 1999
747 Operations Manual
Fuel -
Controls and Indicators
Copyright © The Boeing Company. See title page for details.
D6-30151-425 12.10.7
2 Main Pump
White - pump switch off.
Green - pump on.
Amber - pump pressure low.
3 Tank Quantity
White - indicates fuel quantity in tank.
Amber (main tank only) - imbalance condition or quantity less than 900 kg.
4 Total Fuel Quantity
White - indicates total fuel quantity.
5 Crossfeed Valve
White - indicates open or closed position of crossfeed valve.
Green - indicates open or closed position of crossfeed valve with fuel.
Amber - valve position disagrees with commanded position.
6 Override Pump
White - pump switch off.
Cyan - armed for system logic operation.
Green - pump on.
Amber - pump pressure low.
7 Scavenge Pump Transfer
White - pump on
Green - fuel pressure.
8 Stabilizer Tank Pump
White - pump switch off.
Cyan - armed for system logic operation.
Green - pump on.
Amber - pump pressure low.
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
12.10.8 D6-30151-425
Fuel -
Controls and Indicators
Fuel Jettison Indications
Fuel Jettison Indications, Primary EICAS
1 Fuel Jettison Indications
Fuel to remain replaces fuel temperature during jettison operation.
Magenta - indicates fuel to remain at completion of jettison.
White (flashes for five seconds) - indicates jettison has completed.
EICAS DISPLAY
KGS X
48.0
163.0
TO REMAIN
1000
TOTAL FUEL 1
December 01, 1999
747 Operations Manual
Fuel -
Controls and Indicators
Copyright © The Boeing Company. See title page for details.
D6-30151-425 12.10.9
Fuel Jettison Indications, Fuel Synoptic
1 Jettison Nozzle
Magenta - fuel jettison system operating.
2 Time To Complete Jettison
White - time remaining to complete jettison.
SECONDARY EICAS DISPLAY
NO FUEL FLOW
FUEL FLOW (green, jettison flow - magenta)
1
2 3
CENTER 4
MAIN 1
MAIN 2 MAIN 3
MAIN 4
RES 2 RES 3
STAB
JETTISON TIME MIN
JETT JETT
TOTAL FUEL 45
KGS X 1000
52.2
38.1
4.0
10.0
4.0
38.1
173.0
13.3 13.3
1
2
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
12.10.10 D6-30151-425
Fuel -
Controls and Indicators
Intentionally
Blank
April 1, 2000
747 Operations Manual
Fuel Chapter 12
System Description Section 20
Copyright © The Boeing Company. See title page for details.
D6-30151-425 12.20.1
Introduction
The fuel system supplies fuel to the engines and the APU. The fuel is contained in
a center wing tank, main tanks 1, 2, 3, 4, reserve tanks 2 and 3, and the horizontal
stabilizer tank. Surge tanks are located in the outer portion of each wing and the
outer portion of the right horizontal stabilizer.
Refer to Chapter 7, Engines, APU, for a description of the engine and APU fuel
systems.
Fuel Quantity
Fuel quantity is measured by sensors in each tank.Total fuel quantity displays on
primary EICAS. Tank quantities and total fuel quantity display on the fuel
synoptic.
Compacted fuel quantity indications display on primary EICAS if only one CRT
　
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