Copyright . The Boeing Company. See title page for details.
11.60.18  June 4, 2004

737 Operations Manual

Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.10.1
Fuel Control Panel   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.10.1
Fuel Quantity Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.10.4
Fueling / Defueling / Measurement . . . . . . . . . . . . . . . . . . . . . . 12.10.6
Test Gauges & Fueling Panel . . . . . . . . . . . . . . . . . . . . . . . . 12.10.8
System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.20.1
Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.20.1
Fuel Feed  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.20.1
Fuel Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.20.1
Fuel Crossfeed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.20.1
Fuel Shutoff Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.20.2
Center Tank Scavenge Jet Pump . . . . . . . . . . . . . . . . . . . . . . 12.20.2
Fuel Vent System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.20.2
Fuel Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.20.2
APU Fuel Feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.20.2
DC Operated APU Fuel Pump  . . . . . . . . . . . . . . . . . . . . . . . 12.20.2
Fueling/Defueling/Ground Transfer . . . . . . . . . . . . . . . . . . . . . . 12.20.3
Flame Arrestor and Surge Tank Protections (As Installed)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.20.3 Fuel Quantity Indication  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.20.3 Fuel Tank Location and Capacities (Usable Fuel) . . . . . . . . . . . 12.20.3 Fuel Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.20.5 Fuel -Table of Contents 737 Operations Manual

Intentionally
Blank

Copyright . The Boeing Company. See title page for details.
12.TOC.0.2  December 3, 2004
737 Operations Manual

Fuel Control Panel

FUEL VALVE CLOSED Light
Extinguished – related engine fuel shutoff valve is open.
Copyright . The Boeing Company. See title page for details.
December 1, 2000  12.10.1
Fuel -Controls and Indicators 737 Operations Manual

Illuminated (blue) –
.  
bright – related fuel shutoff valve is in transit, or valve position and
engine start lever or engine fire warning switch disagree.

.
dim – related fuel shutoff valve is closed.

Fuel Temperature (FUEL TEMP) Indicator
Indicates fuel temperature in No. 1 tank.

Crossfeed VALVE OPEN Light
Extinguished – crossfeed valve is closed. Illuminated (blue) –
.  
bright – crossfeed valve is in transit, or valve position and CROSSFEED
selector disagree.

.
dim – crossfeed valve is open.

FILTER BYPASS Light
Extinguished – fuel filter operating normally.
Illuminated (amber) – impending fuel filter bypass due to a contaminated filter.

CROSSFEED Selector
Controls fuel crossfeed valve.
Closed – isolates engine No. 1 and No. 2 fuel feed lines.
Open – connects engine No. 1 and No. 2 fuel feed lines.

Center Tank Fuel Pump LOW PRESSURE Light
Illuminated (amber) – fuel pump output pressure is low and FUEL PUMP switch is ON.
Note:  With both Center (CTR) tank FUEL PUMP switches ON, illumination of both LOW PRESSURE lights illuminates MASTER CAUTION and FUEL system annunciator lights. Illumination of one LOW PRESSURE light illuminates MASTER CAUTION and FUEL system annunciator lights on MASTER CAUTION light recall.
Note:  With one CTR tank FUEL PUMP switch OFF, illumination of opposite CTR tank LOW PRESSURE light illuminates the MASTER CAUTION and FUEL system annunciator lights.
Extinguished – fuel pump output pressure is normal, or FUEL PUMP switch is OFF.
Copyright . The Boeing Company. See title page for details.
12.10.2   December 1, 2000

Fuel -Controls and Indicators 737 Operations Manual

FUEL PUMP Switch
ON – activates fuel pump. OFF – deactivates fuel pump.

Main Tank Fuel Pump LOW PRESSURE Light
Illuminated (amber) – fuel pump output pressure is low, or FUEL PUMP switch is OFF.
Note:  Two LOW PRESSURE lights illuminated in same tank illuminates MASTER CAUTION and FUEL system annunciator lights. One LOW PRESSURE light causes MASTER CAUTION and FUEL system annunciator lights to illuminate on MASTER CAUTION light recall.
　
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