B737Ng Fuel System

Front 1

TANK CAPACITIES

Back 1

MAIN- 3 867kg EACH
CENT-12 802kg

Front 2

HOW MANY FUEL PUMPS IN THE MAIN TANK

Back 2

2 PUMPS
1 FWD AND 1 AFT

Front 3

HOW MANY PUMPS IN THE CENT TANK

Back 3

HAS L FUEL BOOST PUMP AND R FUEL BOOST PUMP

Front 4

ENG 1 SUPPLIED FUEL FM

Back 4

MAIN TANK 1 &
L CENT FUEL PUMP

Front 5

ENG 2 FUEL FROM

Back 5

MAIN TANK 2 &
RT CENT FUEL PUMP

Front 6

CROSS FEED VALVE LETS

Back 6

THE MAIN FUEL TANK SUPPLY FUEL TO THE OPP ENG

Front 7

CHECK VALVES DO WHAT

Back 7

MAKE SURE THE FUEL FLOWS IN THE CORRECT DIRECTION. THIS PREVENTS THE MOVEMENT OF FUEL INTO THE ENGINE

Front 8

PUMP OUT PRESS IS MORE FOR WHICH TANK

Back 8

FRO THE CENT TANK FUEL PUMPS
HENCE CENT TANK FUEL CONSUMED FIRST

Front 9

ENG FUEL SHUT-OFF VALVE & SPAR VALVE ARE CNTL'D HOW

Back 9

ELECTRICALLY

Front 10

THE SPAR FUEL SHUT OFF VALVES CONTROLLED BY

Back 10

DIRECTLY BY THE ENG START LEVERS

Front 11

THE ENG FUEL SHUTOFF VALVES CONTROLLED BY

Back 11

CONTROLLED THROUGH
ELECTRONIC ENG CONTROL
-EEC

Front 12

THE ENG FIRE WNG SW CONTROLS THE BOTH VALVES HOW

Back 12

ELECTRICALLY

Front 13

MECH ENG DRIVEN FUEL PUMP SUPPLY

Back 13

THIS SUPPLIES SUCTION FUEL FEED WHEN THERE ARE NO OPERABLE FUEL PUMPS TO SUPPLY PRESSURISED FUEL TO THE ENGS

Front 14

MECH ENG DRIVEN FUEL PUMPS MOVE FUEL HOW

Back 14

THROUGH A BY-PASS VALVE.
THE CENT TANK HAS NO BY-PASS VALVE

Front 15

WHEN DOES THE LOW PRESS LT ILLUM IN THE CENT TANK

Back 15

WHEN THE PRESS IS LOW AND THE SWITCH IS ON
OR WHEN THE SWITCH IS
EXTING WHEN PRESS NML OR SW IS OFF

Front 16

LOW PRESS LT ILLUM WHEN FOR THE MAIN TANK(DIFF TO CENT TANK)

Back 16

PRESS IS LOW OR SW IS OFF
LT EXTING WHEN PRESS NML AND SWITCH IS ON

Front 17

CROSSFEED SELECTOR WORKS HOW

Back 17

1-CONTROLS CROSSFEED VALVE
2-IN CLOSED POSITION AND RELATED VALVE IS CLOSED & LT EXTINGUISHED

Front 18

WHEN YOU TURN THE X-FEED VALVE TO OPEN

Back 18

LT ILLUMS BRIGHT
VALVE OPEN LT ILLUM BRIGHT WHEN VALVE IN TRANSIT OR NOT IN COMMANDED POSITION

Front 19

WHEN THE VALVE LT IS DIM IT MEANS

Back 19

VALVE OPEN

Front 20

CROSSFEED VALVE OPEN MEANS

Back 20

THE LEFT SIDE & THE RT SIDE OF THE SYST IS CONNECTED

Front 21

THE ENG FUEL SHUTOFF VALVES CONTROLLED BY

Back 21

CONTROLLED THROUGH
ELECTRONIC ENG CONTROL
-EEC

Front 22

THE ENG FIRE WNG SW CONTROLS THE BOTH VALVES HOW

Back 22

ELECTRICALLY

Front 23

MECH ENG DRIVEN FUEL PUMP SUPPLY

Back 23

THIS SUPPLIES SUCTION FUEL FEED WHEN THERE ARE NO OPERABLE FUEL PUMPS TO SUPPLY PRESSURISED FUEL TO THE ENGS

Front 24

MECH ENG DRIVEN FUEL PUMPS MOVE FUEL HOW

Back 24

THROUGH A BY-PASS VALVE.
THE CENT TANK HAS NO BY-PASS VALVE

Front 25

WHEN DOES THE LOW PRESS LT ILLUM IN THE CENT TANK

Back 25

WHEN THE PRESS IS LOW AND THE SWITCH IS ON
OR WHEN THE SWITCH IS
EXTING WHEN PRESS NML OR SW IS OFF

Front 26

LOW PRESS LT ILLUM WHEN FOR THE MAIN TANK(DIFF TO CENT TANK)

Back 26

PRESS IS LOW OR SW IS OFF
LT EXTING WHEN PRESS NML AND SWITCH IS ON

Front 27

CROSSFEED SELECTOR WORKS HOW

Back 27

1-CONTROLS CROSSFEED VALVE
2-IN CLOSED POSITION AND RELATED VALVE IS CLOSED & LT EXTINGUISHED

Front 28

WHEN YOU TURN THE X-FEED VALVE TO OPEN

Back 28

LT ILLUMS BRIGHT
VALVE OPEN LT ILLUM BRIGHT WHEN VALVE IN TRANSIT OR NOT IN COMMANDED POSITION

Front 29

WHEN THE VALVE LT IS DIM IT MEANS

Back 29

VALVE OPEN

Front 30

CROSSFEED VALVE OPEN MEANS

Back 30

THE LEFT SIDE & THE RT SIDE OF THE SYST IS CONNECTED

Front 31

THE PRE FLIGHT CONFIG IS

Back 31

1-ALL ENG PUMPS ON
2-CROSSFEED VALVE CLOSED
3-ALL LTS EXT EXCEPT THE ENG VALVE & THE SPAR VALVE

Front 32

CONDITION OF ENG SPAR VALVES IF
-DIM
-BRIGHT
-EXTINGUISHED

Back 32

DIM-VALVE CLOSED
BRIGHT-VALVES IN TRANSIT
EXTING-WHEN VALVES ARE OPEN

Front 33

FUEL TEMP INDICATOR SHOWS TEMP IN

Back 33

THE MAIN TANK No.1

Front 34

MAX TEMP PERMITTED

Back 34

49 deg C

Front 35

MIN FUEL TEMP

Back 35

HIGHER OF TWO VALUES
1- MINUS 45 deg C OR
2-FUEL FREEZE TEMP PLUS 3 deg C

Front 36

FILTER BY-PASS LIGHTS SHOW

Back 36

THERE IS AN IMPENDING FILTER BYPASS FAILURE COZ THE FILTER IS CONTAMINATED
- FILTER IS CLOGGED FUEL BY-PASSED THE FILTER

Front 37

FUEL QTY IND LOCATED

Back 37

1-ON UPPER DISPL UNIT
2-SHOWS USEABLE FUEL IN EACH UNIT
3-SHOWS DIGITS AND WHITE ARC

Front 38

PRE-FLT FOR FUEL SYST

Back 38

1-ENG VALVE & SPAR VALVE CLOSED LTS ILLUM DIM
2-FILTER BY-PASS LTS-EXT
3-CROSS FEED SELECTOR-CLOSED
4-VALVE OPEN LTS-EXT
5-FUEL QTY-SUFFICIENT
6-FUEL PUMP SW ON
7-LOW PRESS LTS-EXT
-READY FOR START-

Front 39

LIMITATION FOR MAIN TANKS AND CENT TANKS

Back 39

-THE TWO MAIN TANKS MUST BE FULL IF THE CENT TANK HAS MORE THAN 453kg FUEL

Front 40

MAX DIFF BETWEEN MAIN TANKS FUEL QTY IS-

Back 40

-453kg

Front 41

IF DIFF BETWEEN THE TWO MAIN TANKS IS MORE THAN 453kg THEN

Back 41

THE AMBER IMBAL ALERT IS SHOW ON THE INDICATOR WITH THE LOWER AMOUNT

Front 42

WHERE IS APU FUEL FM IN NML OPS ON THE GROUND

Back 42

IS SUCTION FED FROM MAIN TANK No1

Front 43

FOR EXTENDED APU OPS USE

Back 43

FUEL FM THE CNT TANK BY PLACING L CENT TANK SW TO ON

Front 44

WHEN DO YOU SEE THE FUEL CONFIG ALERT

Back 44

IS SHOW ON THE CENT TANK IF FUEL QTY IN THE CENT TANK IS
-GREATER THAN 726kg
-AT LEAST 1 ENG RUNNING
AND
-TWO CENT TANK PUMPS ARE OFF OR HAVE LOW PRESS

Front 45

WHEN IS THE FUEL CONFIG ALERT INHIBITED

Back 45

WHEN CENT TANK QTY IS LESS THAN 362kg

Front 46

IMBAL ALERT WHEN

Back 46

FUEL QTY DIFF B/WEEN MAIN TANKS IS MORE THAN 453kg

Front 47

IMBAL EXTINGUISHES WHEN IMBAL LESS THAN

Back 47

91kg

Front 48

WHEN DO YOU GET A FUEL LOW ALERT

Back 48

WHEN FUEL QTY WNG IN THE MAIN TANK BELOW 907kg

Front 49

DOES THE FUEL LOW ALERT HAVE ANY EFFECT ON THE IMBAL ALERT

Back 49

YES. IT INHIBITS THE IMBAL ALERT

Front 50

STEPS TO BALANCE FUEL

Back 50

1-CENT TANK PUMPS-ON
2-CROSSFEED SELECTOR-OPEN
3-LOW MAIN TANK PUMPS-OFF
4-MONITOR FUEL
5-MAIN TANK PUMPS-ON
6-CENT TANK PUMPS-ON
7-CROSSFEED SELECTOR-CLOSED