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Bleed Air System Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
R
L 80
60
80
1000
20
PSI
R
L
9th STAGE
5th STAGE
STARTER
ENGINE BLEEDAIR VALVE
BLEED TRIPSENSORS
APU BLEEDAIR VALVE
BLEED AIR
CONDITION:ENGINES OPERATING &SUPPLYING AIRCONDITIONING PACKS
737-4001
1
BLEEDAIR DUCT
TO HYDRESERVE
TO HYDRESERVE
ISOLATIONVALVE
TO PACKVALVE
WING TAIVALVE
TO TURBOFAN
TO WING TIA
TURBOFANVALVE
STARTERVALVE
HIGH STAGEVALVE
COWLTAI
TO ASPTAT PROBE
DUCT PRESSURETRANSMITTER
EXTERNALAIR CONNECTION
FROM RIGHTENGINE
L RECIRC FAN R RECIRC FAN
L PACK R PACKISOLATIONVALVE
TRIP
RESET
S
APUBLEED
1 2
OFFAUTO
WING-BODYOVERHEAT
WING-BODYOVERHEAT
PACKTRIP OFF
WINGANTIICE
WINGANTIICE
PACKTRIP OFF
BLEEDTRIP OFF
BLEEDTRIP OFF
OFFON
OFFON
OFFAUTO
OFFAUTO
AUTO HIGH
OFFAUTOHIGH
OPEN
CLOSE
OVHT
TEST
R
L 80
60
80
40
1000
20
PSI
R
L
Wing-Body Overheat Ducts & Lights
Boeing 737-300/400/500 Southeast Flight SupportSFS
R
L
80
60
80
40
1000
20
PSI
R
L
R RECIRC FAN
L PACK R PACKISOLATIONVALVE
TRIP
RESET
APUBLEED
1 2
WING-BODYOVERHEAT
WING-BODYOVERHEAT
WING-BODYOVERHEAT
WING-BODYOVERHEAT
PACKTRIP OFF
WINGANTIICE
WINGANTIICE
PACKTRIP OFF
BLEEDTRIP OFF
BLEEDTRIP OFF
OFFON
OFFON
OFFAUTO
OFFAUTO
AUTO HIGH
OFFAUTOHIGH
OPEN
CLOSE
OVHT
TEST
1
L RECIRC FAN R RECIRC FAN
OFFAUTO
OFFAUTO
1
23
4
5
6
78
LEFT LIGHTSENSORS LOCATED:
1. LEFT ENGINE STRUT.
2. LEFT INBOARD WINGLEADING EDGE.
3. LEFT-HAND AIRCONDITIONING BAY
4. KEEL BEAM
5. BLEED DUCT FROM APU.
RIGHY LIGHTSENSORS LOCATED:
6. RIGHT ENGINE STRUT.
7. RIGHT INBOARD WINGLEADING EDGE.
8. RIGHT-HAND AIRCONDITIONING BAY
737-4001
R
L
80
60
80
40
1000
20
PSI
R
L
Air Conditioning Pack Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
R PACK
WING-BODYOVERHEAT
PACKTRIP OFF
OFFAUTOHIGH
WINGANTIICE
AIRCYCLE
MACHINE
WATERSEPARATOR
MIXINGCHAMBER
PASSCABIN
TO MIXMANIFOLD
RAMAIR
AUTO TEMPCONTROLLER
HOT AIRMIX VALVE
PACKVALVE
RIGHTBLEED AIR
BLEED AIR
COLD AIRMIX VALVE
CONDITIONED AIRCOLD AIR
HEAT EXCHANGERCOOLED AIR
BLEED AIR
AUTO
COOL WARM
COOL WARM
MANUAL
.
. . .
. .
WING-BODYOVERHEAT
PACKTRIP OFF
OFFAUTOHIGH
WINGANTIICE
R PACK
Air Conditioning Distribution Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
CONT CABIN AIR TEMP PASS CABIN
60
8040
20
0100
TEMP
COL D H O
T COL D H O
TDUCT
OVERHEATDUCT
OVERHEAT
SUPPLYDUCTAIR MIX
VALVEAIR MIXVALVE
PASSCABIN
. .
FILTER LEFT SIDEWALLRISER
RECIRCFAN
LEFT PACKTRIP OFF
RIGHT PACKTRIP OFF
RIGHTDUCTOVERHEAT
DRIVES MIX VALVESFULL COLD
TO RIGHT SIDEWALLRISER
LEFT DUCTOVERHEAT
FROM LEFT PACK FROM RIGHT PACK
MIXEDMANIFOLD
GROUND PRECONDITIONEDAIR SUPPLY
TO RIGHTPACKVALVE
CONDITIONED AIR
CONDITION:IN FLIGHT PACKS ON
.
.
..
...
.
WING-BODYOVERHEAT
PACK
OFFAUTOHIGH
R PACK
WINGANTIICE
Air Conditioning Pack Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
WATERSEPARATOR
STBYPACKTEMPCONTVALVE
PACKTEMPCONTVALVE
RIGHTBLEEDAIR
BLEEDAIR
TO MIXMANIFOLD
RAMAIR
PACKVALVE
LEFTBLEEDAIR
TO TRIMAIR SYSTEM
CONDITIONED AIRCOLD AIR
HEAT EXCHANGERCOOLED AIR
BLEED AIR
AIRCYCLE
MACHINE
R ELECTRONICCONTROLLER
L ELECTRONICCONTROLLER
L PRIMARYPACK CONTROLL PRIMARY
PACK CONTROLR RAM
AIR CONTROLL RAMAIR CONTROL
L STBYPACK CONTROL
R STBYPACK CONTROL
....C W
....C W
0FF 0FF
CONT CABAUTO
FWD CABAUTO ....
C W0FF
AFT CABAUTO
..
.
.
Air Conditioning Distribution Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
.
CONDITIONED AIRBLEED AIR
ELECTRICFANS
TRIM AIRMODULATING
VALVES
LPACK
RPACK
TRIM AIRPRESSUREREGULATOR& SHUTOFFVALVE
GROUNDPRECONDITIONED
AIR
TRIM AIR
CONT CAB FWD CAB AFT CAB
OFFON
L ELECTRONICCONTROLLER
AFT CABZONE TEMPCONTROL
BACK-UPFLIGHT DECKZONE TEMPCONTROL
R ELECTRONICCONTROLLER
FWD CABZONE TEMPCONTROL
PRIMARYFLIGHT DECKZONR TEMPCONTROL
ZONETEMP
ZONETEMP
ZONETEMP
MIXEDMANIFOLD
CONDITION:IN FLIGHT PACKS ON
. .
Cabin Pressure Control System Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
RECIRC FANOFF
AUTO
R RECIRC FANOFF
AUTO
FLT
GRD
AUTOFAIL
OFF SCHEDDESENT STANDBY MANUAL
CONDITIONED AIR FROM OVERHEADAND SIDEWALL OUTLETS
AIRPLANEALTIMETERSBARO SET
CABIN SENSEPORT
STATICPORTS
NEGATIVEPRESSURERELIEF
FORWARDOUTFLOWSENSOR
DC AC
AUTO TRANSFER TO STBY
ADC
CAPT F/O
MAIN OUTFLOWVALVE
PRESSURE RELIEFAT 8.65 PSI
AIR/GROUNDSAFTY SENSOR
737-400
CONDITION:IN FLIGHT NORMAL OPERATION
Anti-Ice Components Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
FLIGHT DECKWINDOWSWINDOW HEATWINDSHIELD WIPERSRAIN REPELENT
ELEVATOR PITOTPROBES (2 PLACES)
ANGLE AIRFLOW SENSOR(2 PLACES)
TEMPERATURE PROBE
PITOT STATIC PROBE(4 PLACES)
ENGINE COWL LIP LEADING EDGE SLATS
. ..
Engine Anti-Ice System Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
BLEED AIR
ENGINE COWLANTI-ICE (TAI)
ENGINEBLEED VALVE
HIGH STAGEVALVE
TOPNEUMATICSYSTEM
5 TH
9 THCOWLANTI-ICE VALVE
ENGANTI-ICE
1 2
OFFON
COWL VALVEOPEN
COWL VALVEOPEN
COWLANTI-ICE
COWLANTI-ICE
..
Wing Anti-Ice System Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
WING ANTI-ICEOFFON
L VALVEOPEN
R VALVEOPEN
BLEED AIR
THRUST
ABOVE T. O.WARNING
BELOW T. O.WARNING
RIGHT MAINLANDING GEAR
WING ANTI-ICECONTROL VALVELEADING EDGE SLATS
PNEUMATICMANIFOLD
HIGHTEMP
LOWTEMP
TELESCOPING DUCTWING DISTRIBUTION DUCT
THERMAL SWITCH GROUND
AIR
CONDITION:ON THE GROUND WINGANTI-ICE ON ENGINES ATIDLE THRUST DUCT TEMP LOW
..
. .
Electrical Power Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
RISE
GEN DRIVEOIL TEMP
ºC
IN160
30
2010
0 80 12040
RISE
GEN DRIVEOIL TEMP
ºC
IN160
30
2010
0 80 12040
STANDBY POWER
DRIVE TEMP
DISCONECT DISCONECT
LOW OILPRESSURE
LOW OILPRESSURE
HIGH OILPRESSURE
STANDBYPWR OFF
HIGH OILTEMP
DRIVE CAN BERECONNECTED
ONLY ONGRD
BAT OFF AUTO
RISE
IN
AMPERES
AC
50100
150
0 AMPERES
AC
50100
150
0
BUS TRANS
GEN 1 APU GEN GEN 2
GRDPWR
OFF
OFF
ON
ON
ON
OFF
OFF
AUTO
TRANSFERBUS OFF
TRANSFERBUS OFF
BUSOFF
BUSOFF
GEN OFFBUS
GEN OFFBUS
APU GENOFF BUS
GRD POWERAVAILABLE
EXTERNAL AC BUS
GENERATOR BUS 1
TR 1 TR 2
GEN APU
INW
115v AC GNDSERVICE BUS
GENERATORDRIVE &STANDBYPOWER PANEL
GND SERVICERELAY
NORMAL
APU START
NORMALALTERNATE ALTERNATETRANSFERRELAY 1
TRANSFERRELAY 2
TR3DISCONNECT
RELAY
BUSSWITCHING
115v AC GNDMAIN BUS 1
115v AC TRANSFERBUS 1
AC STANDBY BUS DC STANDBY BUS
DC BUS 1 DC BUS 2
BATTERY
BATTCHGR
GENERATOR BUS 2
115v AC TRANSFERBUS 2
BATTERY BUS
HOT BATTERY BUS
SWITCHEDHOT BAT BUS
EXTERNAL DCRECEPTACLE
115v ACMAIN BUS 2
TR 3
º ººº
º
º
º º
º
º
º º ºº ºººº
GENDRIVE
GENDRIVE GEN
2GEN1
CONDITION: INFLIGHTBATTERY SWITCH ONSTANDBY POWER SWITCH AUTOBUS TRANSFER SWITCH AUTOENGINE GENERATOR CONNECTEDTO RESPECTIVE BUS
...
. . .
.
.
. .
AC Power Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
GENDRIVEGEN
2
OFF
ON
GENDRIVE
GEN1
GEN APU
GRDPWR
GEN 1 APU GEN GEN 2
GROUNDSERVICE
APU
OFF
ON
GRD POWERAVAILABLE
ºº
OFF
ON
OFF
ON
EXTERNAL AC BUS
GENERATOR BUS 1 GENERATOR BUS 2
115v AC GNDSERVICE BUS
115v ACMAIN BUS 1
115v ACMAIN BUS 2
115v AC TRANSFERBUS 1
115v AC TRANSFERBUS 2
GND SERVICERELAY ALTERNATE ALTERNATE
TRANSFERRELAY 1 TRANSFER
RELAY 1
NORMALNORMAL
CONDITION: INFLIGHTBATTERY SWITCH ONSTANDBY POWER SWITCH AUTOBUS TRANSFER SWITCH AUTOENGINE GENERATOR CONNECTEDTO RESPECTIVE BUS
.
Electrical Power Controls & Monitoring Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
GENDRIVEGEN
2
GENERATOR BUS 1 GENERATOR BUS 2
115v AC TRANSFERBUS 1
115v AC TRANSFERBUS 2
DC BUS 2
FANAIR
RISE
GEN DRIVEOIL TEMP
ºC
IN160
30
2010
0 80 12040
50DO
50
0
AMPS
20
DC VOLTS 400
120
VOLTS 300100 130
120
VOLTS 300100 130
AMPERES
AC
50100
150
0
BUS TRANS
GEN 2
DRIVE TEMPRISE
IN
2
DRIVE CAN BERECONNECTEDONLY ON GRD
DISCONNECT
OFF
ON
OFF
AUTO
TRANSFERBUS OFF
LOW OILPRESSUREHIGH OILTEMP
BUSOFF
GEN OFFBUS
VOLTREG
FROMGENERATOR 1
TR 2
TR 1TR 2
TR 3
TEST
BATBATBUS
STBYPWR
APU GENGEN 2
INV
TEST
GEN 1
GRDPWR
STBYPWR
.
. ..
.
. .
.
DC Power System Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
BUS TRANS
OFF
AUTO
BATTERY
115v ACGROUND SERVICE BUS
SWITCHEDHOT BAT BUS
BATTERYSWITCH
TR 3DISCONNECT
RELAY
EXTERNAL DCRECEPTACLE
115v ACMAIN BUS 2
115v ACTRANSFER BUS 1
115v ACTRANSFER BUS 2
DC BUS 1 DC BUS 2
BATTERY BUS
TO APU STARTER
ALTERNATEOFF
ONHOT BATTERY BUS
BATTERYBUS
CONTROL
BATTCHGR
TR 1 TR 2 TR 3
BATTERY OFF AUTOSTANDBY POWER
SWITCH
º º
º º.
NORMAL
CONDITION: INFLIGHTBATTERY SWITCH ONSTANDBY POWER SWITCH AUTOBUS TRANSFER SWITCH AUTOGENERATOR BUSSES POWERED
. ..
.
. .
.
Standby Power System Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
BATTERY
BATTERY
TRANSFER BUS NO. 1
DC BUS NO. 1
DC STANDBY BUS
DC STANDBY BUS
DC STANDBY BUS
AC STANDBY BUS
AC STANDBY BUS
AC STANDBY BUS
BATTERY BUS
BATTERY BUS
TR
STANDBY POWER
STANDBY POWER
BAT BAT
OFFBAT
ON
OFFDAT
ON
OFF OFF
ON ON
AUTOBAT OFF
AUTOBAT OFF
AUTOBAT OFF
OR
STANDBY POWER
1
HOT BATTERY BUS
HOT BATTERY BUS
CONDITION: INFLIGHT OR ON THE GROUNDBATTERY SWITCH ONSTANDBY POWER SWITCH AUTOGENERATOR BUSSES POWERED
CONDITION: INFLIGHT OR ON THE GROUNDBATTERY SWITCH ON or OFFSTANDBY POWER SWITCH BATGENERATOR BUSSES POWERED OR NOT POWERED
CONDITION: INFLIGHTBATTERY SWITCH ONSTANDBY POWER SWITCH AUTOGENERATOR BUSSES POWERED
INV
INV
Power Plant Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
ACCESSORIES
OIL PUMPFUEL PUMPSGENERATORGENERATOR DRIVESTARTERTACHOMETERHYDRAULIC PUMP
BOOSTERS
FAN
THRUST REVERSER
TURBINES
FAN AIR
5TH STAGEBLEED AIR
ENGINEIDLE
CONTROL
POWERMANAGEMENT
CONTROL
FLT DECKCONTROLS
& INDICATORS
ENGINEFUEL
SYSTEM
AIR DRIVENSTARTER
FROMPNEUMATICSYSTEM
FROMFUEL
SYSTEM
FROMENGINE
INDICATINGSYSTEM
FROMELECTRICALSYSTEM
ENGINE START& IGNITION SYSTEM
9TH STAGEBLEED AIR
COMBUSTER
COMPRESSOR
Engine Fuel & Oil System Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
TO BEARINGS& GEARBOX
COMBUSTOR
FUEL FLOWTRANSMITTER
FUELFILLTER
FUELFILLTER
FUEL /OILHEATEXCHANGE
FIRST STAGEFUEL PUMP
ENGINE FUELSHUTOFF VALVE
FUEL HEATER
FROM FUEL TANK
FUELOIL
M E C
MEC FUELSHUTOFFVALVE
OILFILTER
OILTANK
OILPUMP
OIL RETURN
SCAVENGERPUMPS
SCAVENGERFILTER
C
C
OILQUANT
OILQUANT
FUELFLOW
LOW OILPRESSURE
FILTERBYPASS
FUEL VALVECLOSED
OIL FILTERBYPASS
IDLECONTROL
PMC
OILPRESS
ACTUATOR
Thrust Reverser Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
REVERSE THRUST (STOWED) REVERSED THRUST (DEPLOYED)
SYSTEMA
SYSTEMB
STANDBYSYSTEM
ENGINE 2SYSTEM BHYDRAULIC PRESSURE
TRANSLATING SLEEVETRANSLATING SLEEVE
BLOCKER DOOR
FAN FLOWFAN FLOW
CASCADE VANES CASCADE VANES
ISOLATEDVALVE (CLOSED)
DETENT NO. 2
DETENT NO.1
MAXIMUM RESERSE THRUST
STOWEDFORWARDTHRUSTLEVER
ISOLATEDVALVE (OPEN)
CONTROLVALVE(STOW)
CONTROLVALVE(DEPLOY)
ENGINE 2SYSTEM BHYDRAULIC PRESSURE
SYSTEMA
SYSTEMB
STANDBYSYSTEM
ACTUATOR
DEPLOY
STORED &LOCKED
Engine Fire Extinguisher Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
1 2DISCH
L R
DISCH
L R
LEFTFIRE
BOTTLE
LEFT BOTTLEDISCHARGE
RIGHT BOTTLEDISCHARGE
RIGHTFIRE
BOTTLE
SQUIB
Flight Control Surfaces Location
Boeing 737-300/400/500 Southeast Flight SupportSFS
FLIGHT SPOILERS
GROUNDSPOILERS
TRAILINGEDGEFLAPS
AILERONSELEVATOR
RUDDER
STABILIZER
SLATS
FLAPS
Roll Control Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
. .
23 6
7
AILERON
AILERONTRIM
SPOILERMIXER
AILERONFEEL &
CRNTERINGUNIT FLIGHT SPOILERS
SPOILERA B
OFF
ON
OFF
ON
AILERON TRANSFER MECHANISM
. . .. ..
.
Pitch Control Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
MATCH TRIMFAIL
FEELDIFF PRESS
STABILIZERTRIM
STABILIZERPOSITION
LEFT PITOTPROBE
A B
RIGHT PITOTPROBE
ELEVATOR FEEL& CENTERING UNIT
SPEED TRIMFAIL
AIR DATACOMPUTER
MACH TRIM ACTUATOR
FLIGHTCONTROLCOMPUTER
ELEVATORFEEL
COMPUTER
. .
.
.. .
Speed Brakes Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
SPOILERA B
OFF
ON
OFF
ON
..
. .
1 2
4 5
67 8 9
A
SPOILERMIXER
RIGHT MAINLANDING GEAR
FLIGHT SPOILERS: 2, 3, 6, 7GROUND SPOILERS: 0, 1, 4, 5, 8, 9
SPEEDBRAKE
ARMED
FLIGHT DETENT
UP
SPEED BRAKELEVER
SPEED BRAKEDO NOT ARM
SPEED BRAKEARM
GROUND SPOILERBYPASS VALVE
GROUND SPOILERCONTROL VALVE
0
3
B
.
Leading Edge Devices & Trailing Edge Flaps Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
DOWN
ALTERNATE FLAPSUP
OFF
OFF
ARM
.
AUTO SLATCONTROL
LECONTROL
STBYRES
TE FLAPCONTROL
TEDRIVEUNIT
AIR DATACOMPUTER
FLAP LOADRELIEF
COMPARATORSWITCH
TE FLAPS
TE FLAPBYPASS VALVE
FROM SYS BRESERVOIR
PTU
SYS A
SYS B
M
L R
SLATS
FLAPS FLAPSSLATS
3 44
561
23
1 2
M
.
.
.1
2 5
10
15
25
304O
UP
FLAPS
L
Pilot-Static System Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
AIR DATACOMPUTER NO. 1
STANDBYPNEUMATICAIRSPEEDALTIMETER
ELECTRICMACH
AIRSPEED
ELECTRICMACH
AIRSPEEDELECTRICALTIMETER
ELECTRICALTIMETER
INERTIALVERTICLESPEED
INERTIALVERTICLESPEED
AIR DATACOMPUTER NO. 2
PRESSURIZATIONCONTROL
CAPT STATIC
NO. 1 AUX STATIC
NO. 1 AUX PITOT
F/O PITOT
CAPT PITOT
NO. 2 AUX PITOT
PITOT
CAPT & F/O STATIC
NO. 1 & NO. 2 AUX STATICALTERNATE STATIC
ALTERNATE STATIC
NO. 2 AUX STATIC
F/O STATIC
CABIN ALTIMETERAND
DIFFERENTIAL PRESSURE
PRESSURIZATIONCONTROL
Fuel Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
CENTERTANK
TO APU
CENTER TANKSCAVENGEJETPUMP
APU FUELSHUTOFFVALVE
APUBYPASSVALVE
BYPASSVALVE
ENGINEFUELSHUTOFFVALVE
FUELSCAVENGESHUTOFFVALVE FUELING
STATION
MANUALDEFUELINGVALVE
ENGINEDRIVENFUEL PUMP
C
C
0
NO. 1TANK
NO. 2TANK
.
O
2020
40
+
+40
FUELTEMP
CROSS FEED
FUEL PUMPS
OFF
ONFUELPUMPS
L R
CTR
1
0
2
AFT FWD FWD AFT
FUEL VALVECLOSED
FUEL VALVECLOSED
FILTERBYPASS
FILTERBYPASS
LOWPRESSURE
LOWPRESSURE
LOWPRESSURE
LOWPRESSURE
LOWPRESSURE
LOWPRESSURE
VALVEOPEN
OFF
ON
Engine Start & Ignition System Schematic
Boeing 737-300/400/500 Southeast Flight SupportSFS
º º
ºº º
ºº
ºº
ºº º
ºº
º ººº ºº
º ºº
º
º
OFF
FLT
GRD CONT
ENGINE STARTBOTH
IGNL
IGNR
BATTERYBUS
MEC
AC TRANSFERBUS
AC STANDBYBUS
START VALVEOPEN
AIR DRIVENSTARTER
CUTOFF
IDLE
COMBUSTOR
BLEED AIRFUEL
STARTVALVE
STARTERCUTOUTSWITCH
SWITCHHOLDINGRELAY
FROMPNEUMATICSYSTEM
LEFTIGNITER
RIGHTIGNITER
FROMFUEL SYSTEM
ENGINEBLEED AIRVALVE
GDR
GDR
GDR
IGN L
IGN R
OFF
OFF
OFF
CONT
CONT
CONT
BOTH
BOTH
IGN R
HIGH N
LOW N
FLT
FLT
FLT
2
2
ººº
ºZ
Z
CONDITION:ENGINE BEING STARTEDN2 ROTATION BELOW STARTER CUTOUT SPEED
M
Yaw Control Schematic (after RSEP modification)
Boeing 737-300/400/500 Southeast Flight SupportSFS
.
. . . . .
.
.
RUDDERTRIM
RUDDER FEEL& CENTERING
UNIT
YAW DAMPERCOUPLER
RUDDER PCU
RPR
FFM
RPL
OFF
ON
YAW DAMPER
YAWDAMPER
CONTROLVALVE
STANDBYHYDPUMP
STANDBY HYDAOTO-ONLOGIC
CONTROLVALVE
RUDDER
STANDBY
A
BYAW
DAMPER
STANDBYRUDDER PCU
STANDBYRUDDERSHUTOFFVALVE
Standby Hydraulic System (before RSEP modification)and (after RSEP modification)
Boeing 737-300/400/500 Southeast Flight SupportSFS
STBYRUD
OFF
A ON
OFF
OFF
ARM
UP
DOWN
STBYRUD
OFF
B ON
FLT CONTROLA B
ALTERNATE FLAPS
STANDBYHYDLOW
QUANTITY
LOWPRESSURE
LOWPRESSURE
LOWPRESSURE
mnºº
ºº
TO THRUSTRESERSERS
FROMSYSTEM BRESERVOIR
STBYRES
TRAILINGEDGEDRIVEUNIT
TRAILINGEDGE FLAPBYPASSVALVE
STANDBY RUDDERSHUTOFF VALVE
FLIGHT CONTROLSHUTOFF VALVE
FLIGHT CONTROLSHUTOFF VALVE
A B
B
M
ELEVATOR &ELEVATOR FEELCOMPUTER
AILERON
RUDDER
TO EXTENDL.E.DEVICES
.
.
.
Recommended