737NG机组操作手册Flight Crew Operations Manual FCOM 3(142)

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Main tanks No. 1 and No. 2 are integral with the wing structure. The center tank lies between the wing roots within the fuselage area and extends out into the wing structure.
These figures represent approximate amounts of usable fuel. The appropriate weight and balance control and loading manual gives exact figures for all conditions.
TANK  LITERS  KILOGRAMS* 
NO. 1  4,876  3,915 
NO. 2  4,876  3,915 
CENTER  16,273  13,066 
TOTAL  26,025  20,896 

* Usable fuel at level attitude, fuel density = 0.8029 kilograms per liter
Copyright . The Boeing Company. See title page for details.
Fuel -System Description
737 Flight Crew Operations Manual
Fuel Schematic
YA613 - YA722, YC153 - YK104
ENG VALVE
ENG VALVE CLOSED
0
CLOSED
FUEL
-20 TEMP +20
SPAR VALVE
SPAR VALVE CLOSED
CLOSED
-40 +40
C
FILTER
VALVE
FILTER BYPASS
OPEN
BYPASS
FEED
CROSS
LOW
LOW PRESSURE
PRESSURE
FUEL PUMPS
OFF
L R
ENGINE
ON
FUEL
CTR
SHUTOFF 21
LOW LOW
LOW
LOW
VALVE
PRESSURE PRESSURE
PRESSURE
PRESSURE
AFT FWD FWD AFT
OFF OFF
FUEL
PUMPS

ON ON

1 2
MANUAL DEFUELING VALVE
FUELING STATION
CENTER
SPAR FUEL

TANK
SHUTOFF
VALVE

ENGINE NO. 2 NO. 1 BYPASS TANK TANK VALVE
APU BYPASS VALVE CENTER TANK FUEL SCAVENGE APU FUEL JET PUMP
SHUTOFF
VALVE

A
P
U

CONDITION: ENGINES OPERATING FUEL FEED CENTER TANK FEEDING ENGINES
Copyright . The Boeing Company. See title page for details.
12.20.4  September 26, 2003
Fuel -System Description
737 Flight Crew Operations Manual
YA801 - YA809
1
SPAR FUEL
SHUTOFF
VALVE

NO. 1
TANK

APU BYPASS VALVE
APU FUEL PUMP
APU FUEL SHUTOFF VALVE
A P U
ENG VALVE
ENG VALVE CLOSED
0
CLOSED
FUEL
-20 TEMP +20
SPAR VALVE
SPAR VALVE CLOSED
CLOSED
-40 +40
C
FILTER
VALVE
FILTER BYPASS
OPEN
BYPASS
FEEDCROSS
LOW
LOW PRESSURE
PRESSURE
FUEL PUMPS
OFF
L R
ON
CTR
LOW LOW LOW
LOW PRESSURE
PRESSURE PRESSURE PRESSURE
AFT FWD FWD AFT
OFF OFF
FUEL
PUMPS

ON ON
1 2
CENTER
TANK

CENTER TANK FUEL SCAVENGE JET PUMP
ENGINE
FUEL
SHUTOFF

2VALVE
MANUAL
DEFUELING
VALVE

FUELING STATION
ENGINE NO. 2 BYPASS TANK VALVE
CONDITION: ENGINES OPERATINGFUEL FEED   CENTER TANK FEEDING ENGINES
Copyright . The Boeing Company. See title page for details.
Fuel -System Description 737 Flight Crew Operations Manual

Intentionally
Blank

Copyright . The Boeing Company. See title page for details.
12.20.6  July 28, 2000

Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.10.1
Hydraulic Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.10.1 Hydraulic Indications  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.10.2 Flight Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.10.3
System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.20.1
Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.20.1 Hydraulic Power Distribution Schematic . . . . . . . . . . . . . . . 13.20.1
A and B Hydraulic Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.20.2 A and B Hydraulic System Pumps . . . . . . . . . . . . . . . . . . . . 13.20.2 System A Hydraulic Leak . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.20.3 System B Hydraulic Leak . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.20.3 Power Transfer Unit  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.20.3 Landing Gear Transfer Unit  . . . . . . . . . . . . . . . . . . . . . . . . . 13.20.4
Standby Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13.20.4 Automatic Operation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.20.5 Standby Hydraulic System Schematic . . . . . . . . . . . . . . . . . 13.20.6 Standby Hydraulic System Leak. . . . . . . . . . . . . . . . . . . . . . 13.20.8
Variations in Hydraulic Quantity Indications . . . . . . . . . . . . . . . 13.20.8
　
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