737 Systems Schematics

(1)

60 60 20 20 8080 PSI PSI 100 100 R RPACKPACK APU APU EXTERNAL EXTERNAL S

S APUAPUBLEEDBLEED

Bleed

Air

System

Schematic

L

LRECIRCRECIRCFAFANN RRRECIRCRECIRCFFANAN

1

1 OFFOFFAUTOAUTO

40 40 6060 OFF OFF AUTO AUTO 20 20 0 0 0 0 R RRR PSI PSI 80 80 80 80 100 100 OVHT OVHT TEST TEST L LPACKPACK OFF OFF AUTO AUTO HIGH HIGH ISOLATION ISOLATION OFF OFF AUTO AUTO AUTO

AUTOHIGHHIGH

CONDITION:

ENGINES

ENGINESOPERATINGOPERATING&&

SUPPLYING SUPPLYINGAIAIRR WING WING ANTI ANTI ICE ICE PACK PACK TRIP

TRIPOFFOFF WING-BODY WING-BODY OVERHEAT OVERHEAT BLEED BLEED TRIP

TRIPOFFOFF

OPEN OPEN TRIP TRIP PACK PACK TRIP

TRIPOFFOFF

WING-BODY WING-BODY OVERHEAT OVERHEAT BLEED BLEED TRIP

TRIPOFFOFF

WING WING ANTI ANTI ICE ICE CONDITIONING

CONDITIONINGPACKSPACKS

OFF OFF RESET RESET OFF OFF 1 1 737-400737-400 BLEED BLEEDAIAIRR T TOOASASPP T TAATTPROBEPROBE TURBOFAN TURBOFAN VALVE VALVE ON ON ONON 1 1 22 BLEED BLEED T TOOPACKPACK VALVE VALVE T TOOTURBOFANTURBOFAN T TOOWINGWINGTITIAA DUCT

DUCTPRESSUREPRESSURE

TRANSMITTER TRANSMITTER WING WINGTTAIAI VALVE VALVE FROM

FROMRIGHTRIGHT

ENGINE ENGINE ISOLATION ISOLATION VALVE VALVE TO TOHYHYDD RESERVE

RESERVE AIAIRRCONNECTIONCONNECTION TO TOHYDHYD RESERVE RESERVE STARTER STARTER STARTER STARTER VALVE VALVE BLEED BLEED AI AIRRDUCTDUCT 5th 5thSTAGESTAGE 9th 9thSTAGESTAGE COWL COWL T TAIAI HIGH

HIGHSTAGESTAGE

VALVE

ENGINE

ENGINEBLEEDBLEED

AI

AIRRVALVEVALVE

BLEED

BLEEDTRIPTRIP

SENSORS

AI

(2)

R

RPACKPACK

APU APU FO

FO KhurramKhurram Naseem Naseem

Wing-Body

Overheat

Ducts

&

Lights

5 5 6 6 7 7 8 8 3 3 4 4 2 2 1 1 L

LRECIRCRECIRCFFANAN RRRECIRCRECIRCFFANAN

1

1 OFFOFFAUTOAUTO

40 40 ₆₀₆₀ OFF OFF AUTO AUTO R RRECIRCRECIRCFFANAN OFF OFF AUTO AUTO 20 20 R RRR 80 80 OVHTOVHT PSI PSI 0 0 100100 TEST TEST L LPACKPACK OFF OFF AUTO AUTO HIGH HIGH ISOLATION ISOLATION OFF OFF AUTO AUTO AUTO

AUTOHIGHHIGH

WING-BODY WING-BODY OVERHEAT OVERHEAT WING WING ANTI ANTI ICE ICE PACK PACK TRIP

TRIPOFFOFF

WING

ANTI

ICE

ICE WING-BODYWING-BODY

OVERHEAT OVERHEAT RESET RESET OFF OFF ON ON OFF OFF ON ON LEFT

LEFTLIGHTLIGHT

SENSORS

SENSORSLOCATED:LOCATED:

1.

1.LEFTLEFTENGINEENGINESTRUT.STRUT.

2.

2.LEFTLEFTINBOARDINBOARDWINGWING

LEADING

LEADINGEDGE.EDGE.

3. 3.LEFT-HANDLEFT-HANDAIAIRR 1 1 22 BLEED BLEED RIGHY

RIGHYLIGHTLIGHT

SENSORS

6.

6.RIGHTRIGHTENGINEENGINESTRUT.STRUT.

7.

7.RIGHTRIGHTINBOARDINBOARDWINGWING

LEADING

LEADINGEDGE.EDGE.

8.

8.RIGHT-HANDRIGHT-HANDAIAIRR

CONDITIONING

CONDITIONINGBABAYY

4.

4.KEELKEELBEAMBEAM 11 737-400737-400

CONDITIONING

CONDITIONINGBBAAYY

5.

(3)

R

RPACKPACK

APU APU

Wing-Body

Overheat

Ducts

&

Lights

5 5 6 6 7 7 8 8 3 3 4 4 2 2 1 1 L

LRECIRCRECIRCFFANAN RRRECIRCRECIRCFFANAN

1

1 OFFOFFAUTOAUTO

40 40 ₆₀₆₀ OFF OFF AUTO AUTO R RRECIRCRECIRCFFANAN OFF OFF AUTO AUTO 20 20 R RRR 80 80 OVHTOVHT PSI PSI 0 0 100100 TEST TEST L LPACKPACK OFF OFF AUTO AUTO HIGH HIGH ISOLATION ISOLATION OFF OFF AUTO AUTO AUTO

AUTOHIGHHIGH

WING-BODY WING-BODY OVERHEAT OVERHEAT WING WING ANTI ANTI ICE ICE PACK PACK TRIP

TRIPOFFOFF

WING

ANTI

ICE

ICE WING-BODYWING-BODY

OVERHEAT OVERHEAT RESET RESET OFF OFF ON ON OFF OFF ON ON LEFT

LEFTLIGHTLIGHT

SENSORS

1.

1.LEFTLEFTENGINEENGINESTRUT.STRUT.

2.

2.LEFTLEFTINBOARDINBOARDWINGWING

LEADING

LEADINGEDGE.EDGE.

3. 3.LEFT-HANDLEFT-HANDAIAIRR 1 1 22 BLEED BLEED RIGHY

RIGHYLIGHTLIGHT

SENSORS

6.

6.RIGHTRIGHTENGINEENGINESTRUT.STRUT.

7.

7.RIGHTRIGHTINBOARDINBOARDWINGWING

LEADING

LEADINGEDGE.EDGE.

8.

8.RIGHT-HANDRIGHT-HANDAIAIRR

CONDITIONING

CONDITIONINGBABAYY

4.

4.KEELKEELBEAMBEAM 11 737-400737-400

CONDITIONING

CONDITIONINGBBAAYY

5.

(4)

. .

FO

FO KhurramKhurram Naseem Naseem

Air

Conditioning

Pack

Schematic

AUTO

COOL

COOL WARMWARM COOL

COOL WARMWARM

MANUAL MANUAL

PASS

CABIN

CABIN MANIFOLDMANIFOLDTTOOMIMIXX

MIXING MIXING CHAMBER CHAMBER

R

PACK

O

FF

AUTO

HIGH

WATERWATER_SEPARATOR_SEPARATOR RARAMM

AI

AIRR

PACK

TRIP

TRIPOFFOFF

WING-BODY WING-BODY OVERHEAT OVERHEAT WING WING ANTI ANTI ICE ICE . . .. .. . . . . AUTO AUTOTEMPTEMP CONTROLLER CONTROLLER AI AIRR CYCLE CYCLE MACHINE MACHINE H HOTOTAIAIRR MI

MIXXVALVEVALVE _MICOLDCOLD_MI_X_X_VALVE_VALVEAIAIRR

BLEED BLEEDAIAIRR PACK PACK VALVE VALVE RIGHT RIGHT BLEED

BLEEDAIAIRR _CONDITIONED_CONDITIONED_AI_AI_R_R

COLD

COLDAIAIRR

BLEED

BLEEDAIAIRR

HEAT

HEATEXCHANGEREXCHANGER

COOLED

(5)

CO CO

OVERHEAT DUCT

.

Air Conditioning Distribution Schematic

CONT CABIN AIRTEMP PASS CABIN

SUPPLY PASS

D

AIR MIX

VALVE DUCT CABIN

D

AIRMIX VALVE

DRIVES MIX VALVES

FULL COLD 60 80

DUCT

20 100

OVERHEAT

0

OFF

R PACK

TO RIGHT_PACK

AUTO

HIGH

VALVE PACK TRIP OFF WING-BODY OVERHEAT WING ANTI ICE . . TO RIGHT SIDEWALL LEF T PA CK . TRIP OFF O VER HEA T RECIRC FAN LEFT DUCT .

FILTER LEFT SIDEWALL

RISER . MIXED MANIFOLD RISER RIGHTPACK TRIP OFF RIGHTDUCT OVERHEAT . . .

(6)

FROM LEFT PACK FROM RIGHT PACK GROUND PRECONDITIONED AIR SUPPLY CONDITION: IN FLIGHT PACKS ON CONDITIONED AIR

(7)

. . . .

Air Conditioning Pack Schematic

C O N T C A B F W D C A B A F T C A B A U T O A U T O A U T O . . . . TO MIX MANIFOLD C W C W 0FF 0FF . C W 0FF L ELECTRONIC CONTROLLER L PRIMARY PACK CONTROL L RAM AIR CONTROL R STBY PACK CONTROL R ELECTRONIC CONTROLLER L PRIMARY PACK CONTROL R RAM AIR CONTROL L STBY PACK CONTROL PACK TEMP CONT . WATER SEPARATOR RAM AIR STBY VALVE . AIR CYCLE MACHINE PACK TEMP CONT

(8)

R PACK

OFF AUTO HIGH TO TRIM AIR SYSTEM PACK WING-BODY OVERHEAT LEFT BLEED AIR WING ANTI ICE . BLEED AIR PACK VALVE CONDITIONEDAIR RIGHT BLEED AIR COLD AIR BLEED AIR HEAT EXCHANGER COOLED AIR

(9)

TEMP TEMPZONE ZONE

Air Conditioning Distribution Schematic

TRIM AIR OFF ON ZONE

TEMP CONT CAB FWDCAB AFT CAB

. . . L ELECTRONIC CONTROLLER AFT CAB ZONE TEMP CONTROL BACK-UP FLIGHT DECK ZONE TEMP CONTROL ELECTRIC FANS TRIM AIR MODULATING VALVES R ELECTRONIC CONTROLLER FWD CAB ZONE TEMP CONTROL PRIMARY FLIGHT DECK ZONR TEMP CONTROL MIXED MANIFOLD TRIM AIR PRESSURE L PACK CONDITION: IN FLIGHT PACKS ON CONDITIONED AIR BLEED AIR GROUND PRECONDITIONED AIR R PACK REGULATOR & SHUTOFF VALVE

(10)

FAIL OFF SCHED

FO Khurram Naseem

Cabin Pressure Control System Schematic

CONDITIONED AIR FROM OVERHEAD

AND SIDEWALL OUTLETS

AUTO TRANSFER TO STBY

AUTO

DESENT STANDBY ADC MANUAL

STATIC PORTS CABIN SENSE PORT CAPT F/O AIRPLANE ALTIMETERS BARO SET RECIRC FAN 737-400 OFF AUTO F L T G R D R RECIRC FAN OFF AUTO FORWARD OUTFLOW SENSOR AIR/GROUND DC AC NEGATIVE PRESSURE RELIEF SAFTY SENSOR MAIN OUTFLOW VALVE PRESSURE RELIEF AT 8.65 PSI CONDITION:

(11)

Anti-Ice Components Schematic

ELEVATOR PITOT PROBES (2 PLACES) FLIGHT DECK WINDOWS WINDOW HEAT WINDSHIELD WIPERS RAIN REPELENT . . .

ANGLE AIRFLOW SENSOR (2 PLACES)

TEMPERATURE PROBE PITOT STATIC PROBE (4 PLACES)

(12)

ANTI-ICE COWL OPEN COWL VALVE

FO Khurram Naseem

Engine Anti-Ice System Schematic

ENGINE COWL ANTI-ICE (TAI) COWL ANTI-ICE . COWL ANTI-ICE VALVE 5 TH 9 TH . HIGH STAGE VALVE BLEED AIR ENGINE BLEED VALVE COWL VALVE OPEN

ENG

ANTI-ICE OFF ON

1

2

TO PNEUMATIC SYSTEM

(13)

OPEN R VALVE

Wing Anti-Ice System Schematic

L VALVE OPEN

WING ANTI-ICE

OFF ON THRUST ABOVE T. O. WARNING HIGH BELOW T. O. WARNING

THERMAL SWITCH GROUND

TEMP _AIR LOW TEMP RIGHT MAIN LANDING GEAR PNEUMATIC MANIFOLD

LEADING EDGE SLATS WING ANTI-ICE_{CONTROL VALVE}

. .

.

WING DISTRIBUTION DUCT TELESCOPING DUCT

CONDITION:

ON THE GROUND WING ANTI-ICE ONENGINES AT

IDLE THRUST DUCT TEMP LOW

(14)

º

ºº º ºº ºº

MAIN BUS 1 115v AC TRANSFER

º º TR 1 . . . º º . . FO Khurram Naseem

Electrical Power Schematic

GRD POWER STANDBY AVAILABLE LOWOIL PRESSURE HIGH OIL TEMP PWROFF STANDBY POWER LOWOIL PRESSURE HIGH OIL PRESSURE 50 100 AC 150 GRD PWR OFF 50 100 AC 150

DISCONECT DISCONECT 0 AMPERES 0 AMPERES

GENERATOR DRIVE & STANDBY POWER PANEL

10RISE 20

BAT OFF AUTO

DRIVE TEMP RISE IN DRIVE CAN BE RECONNECTED 10RISE 20 TRANSFER BUS OFF BUS OFF GENOFF BUS O F F ON BUS TRANS APUGEN OFFBUS A U T O TRANSFER BUSOFF BUS OFF GENOFF BUS BUS SWITCHING 0 80IN120 40 160 30 ONLY ON GRD 0 80IN120 40 160 30 OFF OFF GEN DRIVE OIL TEMP GEN DRIVE OIL TEMP ON ON

ºC ºC _{GEN 1} _APUGEN _{GEN 2}

EXTERNAL AC BUS . . GEN GEN DRIVE 1

º

GEN APU .

º

GEN GEN 2 DRIVE GND SERVICE

_º

GENERATOR BUS 1

NORMAL _ALTERNATE _ALTERNATE

TRANSFER TRANSFER

RELAY 1 RELAY 2

GENERATORBUS 2

NORMAL

115v AC GND

SERVICE BUS 115v AC GND BUS 1 115v AC TRANSFERBUS 2 _{MAIN BUS 2}115v AC

TR3 DISCONNECT TR 2 DC BUS 1 DC BUS 2 TR3 .

AC STANDBY BUS DC STANDBY BUS INW

BATTERY BUS

CONDITION: INFLIGHT

BATTERY SWITCH ON

STANDBY POWER SWITCH AUTO

BUS TRANSFER SWITCH AUTO

APU START BATT CHGR

HOT BATTERY BUS

.

BATTERY

SWITCHED HOT BAT BUS EXTERNAL DC

RECEPTACLE

ENGINE GENERATOR CONNECTED TO RESPECTIVE BUS

(15)

DRIVE 1 GEN APU RELAY 1 BUS 1 115v AC TRANSFER

AC Power Schematic

GRD POWER AVAILABLE EXTERNAL AC BUS

GRD

PWR

OFF ON OFF ON

GROUND

SERVICE

GEN GEN . OFF ON

GEN 1

APU GEN

APU

GEN GEN 2 DRIVE OFF ON

GEN 2

RELAY

º

GENERATOR BUS 1 GENERATOR BUS 2

NORMAL TRANSFER 115v AC GND SERVICE BUS 115v AC MAIN BUS 1 115v AC TRANSFER BUS2 115v AC MAIN BUS 2 CONDITION: INFLIGHT BATTERY SWITCH ON

ENGINE GENERATOR CONNECTED TO RESPECTIVE BUS

(16)

. .

FO Khurram Naseem

Electrical Power Controls & Monitoring Schematic

2 0 ₁₂₀ LOWOIL PRESSURE 50 DO AMPS 50 1000 VOLTS 30130 HIGH OIL TEMP DISCONNECT DRIVE TEMP RISE 0 20 DC VOLTS 40 1000 120 VOLTS 30130 . IN DRIVE CANBE RECONNECTED ONLY ON GRD 10RISE 20 TR 1 APUGEN 0 ₈₀_IN₁₂₀ 40 160 30 BAT BAT BUS STBY PWR TR 2 TR 3 TEST GEN 1 GRD PWR STBY PWR GEN 2 INV TEST FAN AIR . . . GEN DRIVE OIL TEMP ºC .

GEN GEN

2 DRIVE

VOLT REG TRANSFER BUS OFF BUS OFF 50 100 150 GENOFF_BUS FROM GENERATOR 1 . 0 AC AMPERES OFF ON GEN2

GENERATOR BUS 1 GENERATOR BUS 2

BUS TRANS 115v AC TRANSFER BUS 1 O F F A U T O 115v AC TRANSFER BUS 2 TR 2 DCBUS2

(17)

. .

DC Power System Schematic

BUS TRANS A O F U T 115v AC F O _{115v AC}

GROUND SERVICE BUS

115v AC

TRANSFER BUS 1 TRANSFER BUS 2115v AC

MAIN BUS2 BATT CHGR TR1 TR2 TR3 TR3 DISCONNECT . DC BUS 1 DC BUS 2 BATTERY BUS BATTERY BUS CONTROL NORMAL .

BATTERY OFF AUTO STANDBY POWER

SWITCH ALTERNATE .

OFF

TO APU STARTER

HOT BATTERY BUS

. . .

º

SWITCHED HOT BAT BU S EXTERNAL D C RECEPTACL E ON BATTERY SWITCH BATTERY CONDITION: INFLIGHT BATTERY SWITCH ON

(18)

FO Khurram Naseem

Standby Power System Schematic

TRANSFER BUS NO. 1 OFF BAT ON T R 1 STANDBY POWER DC BUS NO. 1

BAT OFF AUTO DC STANDBY BUS

CONDITION: INFLIGHT OR ON THE GROUND

BATTERY SWITCH ON

STANDBY POWER SWITCH AUTO GENERATOR BUSSES POWERED

ACSTANDBY BUS

OFF DAT ON

DC STANDBY BUS BATTERY BUS

STANDBY POWER

ACSTANDBY BUS INV HOT BATTERY BUS

BAT OFF

CONDITION: INFLIGHT

AUTO

BATTERY

BATTERY SWITCH ON

STANDBY POWER SWITCH AUTO GENERATOR BUSSES POWERED

OFF OFF

BAT OR BAT

DCSTANDBY BUS BATTERY BUS

ON ON

AC STANDBY BUS STANDBY POWER

AUTO

BAT OFF

CONDITION: INFLIGHT OR ON THE GROUND

BATTERY SWITCH ON or OFF

STANDBY POWER SWITCH BAT

GENERATOR BUSSES POWERED OR NOT POWERED

INV HOT BATTERY BUS

(19)

Power Plant Schematic

FAN AIR

5TH STAGE BLEED AIR 9TH STAGE

BOOSTERS BLEED AIR

FAN COMBUSTER

TURBINES

ACCESSORIES THRUST REVERSER

OIL PUMP FUEL PUMPS GENERATOR COMPRESSOR ENGINE FUEL SYSTEM ENGINE IDLE CONTROL GENERATOR DRIVE STARTER TACHOMETER

HYDRAULIC PUMP _{AIR DRIVEN}

STARTER POWER MANAGEMENT CONTROL FLT DECK CONTROLS & INDICATORS ENGINE START

& IGNITION SYSTEM

FROM PNEUMATIC SYSTEM FROM FUEL SYSTEM FROM ENGINE INDICATING SYSTEM FROM ELECTRICAL SYSTEM

(20)

FO Khurram Naseem

Engine Fuel & Oil System Schematic

TO BEARINGS & GEARBOX LOW OIL PRESSURE OIL RETURN SCAVENGER PUMPS MEC FUEL SHUTOFF VALVE COMBUSTOR FUEL FLOW TRANSMITTER FUEL FLOW IDLE CONTRO L OIL PRESS OIL FILTER MEC PMC SCAVENGER OIL FILTER BYPASS C FILTER _FUEL FILLTER OIL QUANT OIL PUMP OIL QUANT FUEL FILLTER C FILTER BYPASS FUEL OIL FUEL HEATER FUEL VALVE CLOSED FUEL /OIL HEAT EXCHANGE FIRST STAGE FUEL PUMP ENGINE FUEL SHUTOFF VALVE OIL TANK

(21)

TRANSLATING SLEEVE TRANSLATING SLEEVE

Thrust Reverser Schematic

DETENT NO. 2 MAXIMUM RESERSE THRUST

DETENT NO.1

FORWARD

STOWED THRUST

LEVER

REVERSE THRUST (STOWED)

REVERSED THRUST (DEPLOYED)

SYSTEM STANDBY SYSTEM

A SYSTEM B

ENGINE 2 SYSTEM B

HYDRAULIC PRESSURE

SYSTEM STANDBY SYSTEM

A SYSTEM B ENGINE 2 SYSTEM B HYDRAULIC PRESSURE CONTROL VALVE (STOW) ACTUATOR CONTROL VALVE (DEPLOY) ACTUATOR DEPLOY STORED & LOCKED ISOLATED

VALVE (CLOSED) ISOLATED_{VALVE (OPEN)}

BLOCKER DOOR FAN FLOW

FAN FLOW

(22)

FO Khurram Naseem

Engine Fire Extinguisher Schematic

DISCH

L R

DISCH

L R

1

2

LEFT BOTTLE DISCHARGE LEFT FIRE BOTTLE SQUIB RIGHT BOTTLE DISCHARGE RIGHT FIRE BOTTLE

(23)

Flight Control Surfaces Location

FLIGHT SPOILERS GROUND FLAPS SPOILERS RUDDER SLATS TRAILING EDGE FLAPS AILERONS STABILIZER ELEVATOR

(24)

FO Khurram Naseem

Roll Control Schematic

.

AILERON

TRIM AILERO N

AILERON TRANSFER MECHANISM .

FEEL & CRNTERING UNIT SPOILER MIXER FLIGHT SPOILERS AILERON 2 3 6 7 . . . . . . SPOILER A B OFF _OFF ON _ON .

(25)

.

Pitch Control Schematic

MATCH TRIM

FAIL SPEED TRIMFAIL

AIR DATA COMPUTER LEFT PITOT PROBE FLIGHT CONTROL COMPUTER ELEVATOR FEEL RIGHT PITOT PROBE A STABILIZER POSITION COMPUTER FEEL DIFF PRESS MACH TRIM ACTUATOR

ELEVATOR FEEL & CENTERING UNIT

. . STABILIZER TRIM . . . B

(26)

FO Khurram Naseem

Speed Brakes Schematic

4 5 0 1 2 . 3 ₆ . 7 ₈ 9 . . SPOILER A B A GROUND SPOILER CONTROL VALVE OFF ON OFF ON SPOILER MIXER B GROUND SPOILER BYPASS VALVE SPEED BRAKE SPEED BRAKE DONOT ARM SPEED BRAKE ARM ARMED FLIGHT DETENT UP RIGHT MAIN LANDING GEAR FLIGHT SPOILERS:2, 3, 6, 7 GROUND SPOILERS: 0, 1, 4, 5, 8, 9 SPEED BRAKE LEVER

(27)

2 3

1 2

Leading Edge Devices & Trailing Edge Flaps Schematic

1 SLATS FLAPS FLAPS 3 4 4 SLATS 5 6 AUTO SLAT CONTROL FROM SYS B RESERVOIR PTU STBY RES LE CONTROL SYS A SYS B ALTERNATE FLAPS M . . TE FLAP CONTROL OFF UP TE OFF _M DRIVE UNIT TE FLAP ARMDOWN . BYPASS VALVE AIRDATA COMPUTER . TE FLAPS 1 UP 2 5 10 15 . FLAPS 4O 30 25 _{FLAP LOAD} RELIEF L R COMPARATOR SWITCH

(28)

FO Khurram Naseem

Pilot-Static System Schematic

ELECTRIC ALTIMETER ELECTRIC ALTIMETER INERTIAL VERTICLE SPEED STANDBY PNEUMATIC AIRSPEED ALTIMETER ELECTRIC MACH AIRSPEED ELECTRIC MACH AIRSPEED INERTIAL VERTICLE SPEED AIR DATA

COMPUTER NO. 1 _{COMPUTER NO. 2}AIR DATA

CAPT PITOT

F/O PITOT CAPT STATIC

NO. 1 AUX STATIC

NO. 2 AUX PITOT

PRESSURIZATION CONTROL PITOT

CAPT & F/O STATIC NO. 1 & NO. 2 AUX STATIC

ALTERNATE STATIC

F/O STATIC

NO. 2 AUX STATIC

PRESSURIZATION CONTROL

CABIN ALTIMETER AND

DIFFERENTIALPRESSURE

(29)

20 FUEL+20 FUEL

Fuel Schematic

FUELVALVE CLOSED FILTER BYPASS 40 0 TEMP C C VALVE OPEN +40 FUEL VALVE CLOSED FILTER BYPASS CROSS FEED LOW LOW PRESSURE PRESSURE FUEL PUMPS L R CTR LOW LOW PRESSURE PRESSURE LOW LOW PRESSURE PRESSURE AFT FWD FWD AFT OFF OFF ON PUMPS ON ENGINE DRIVEN FUEL PUMP 1 2 ENGINE FUEL SHUTOFF VALVE MANUAL DEFUELING VALVE O FUEL SCAVENGE SHUTOFF VALVE FUELING STATION BYPASS VALVE

NO. 2

NO. 1

TANK

CENTER

TANK

. APU APU FUEL SHUTOFF VALVE TO APU CENTER TANK SCAVENGE JETPUMP BYPASS VALVE

(30)

ºOFF º ºº

º º

SWITCH º º º OFF ºFLT º ºº ºOFF ºFLT ºººBOTH º º FO Khurram Naseem

Engine Start & Ignition System Schematic

BATTERY BUS AIR DRIVEN STARTER START VALVE OPEN ENGINE GDR FLTCONT M START VALVE BLEED AIR VALVE SWITCH HOLDING RELAY HIGH N2 LOWN2 STARTER CUTOUT FROM PNEUMATIC SYSTEM COMBUSTOR

ENGINE START

OFF BOTH GRD CONT FLT IGN R IGN L IDLE CUTOFF MEC FROM AC TRANSFER BUS AC STANDBY BUS GDR

º

CONT GDR CONT

º

IGN L IGN R

º

BOTH IGN R

º º

FUEL SYSTEM LEFT IGNITER Z Z RIGHT IGNITER CONDITION:

ENGINE BEING STARTED

N2 ROTATION BELOW STARTER CUTOUT SPEED

BLEED AIR FUEL

(31)

Yaw Control Schematic (after RSEP modification)

YAW DAMPER

. . . . . RUDDER TRIM RUDDER FEEL & CENTERING UNIT . YAW DAMPER COUPLER CONTROL VALVE RPL YAW DAMPER OFF ON RUDDER

B DAMPERYAW RUDDER PCU

A RPR . FFM STANDBYHYD AOTO-ON LOGIC CONTROL VALVE STANDBY HYD PUMP . STANDBY RUDDER PCU STANDBY STANDBY RUDDER SHUTOFF VALVE