ata 73 cfm56 3

FUEL SYSTEM

ATA 73

CONTROL SYSTEM SCHEMATIC

FUEL AND COMPRESSOR CONTROL SYSTEM SCHEMATIC

FUEL DELIVERY SYSTEM

FUEL SYSTEM

FUEL PUMP

FUEL PUMP LOCATION

FUEL PUMP ASSEMBLY

LP STAGE = 43 PSIHP STAGE = 1100 PSI

FUEL PUMP QAD INSTALLATION

FUEL FILTER CARTRIDGE

20 MICRONESBYPASS VALVE OPEN TO 15 PSID

FUEL FILTER DIFFERENTIAL SWITCH

FUEL FILTER BYPASS WARNING

CLOSED = 11.5 PSIDOPEN = 9 PSID

WASH FILTER

60 MICRONES

SERVO FUEL HEATER

SERVO FUEL HEATER

FUEL SYSTEM

MAIN ENGINE CONTROL (MEC)

FUEL METERING SYSTEM

MEC ADJUSTMENTS

MEC ADJUSTMENTS

FEEDBACK CABLES

FEEDBACK CABLES

SPEED GOVERNING SYSTEM

FUEL LIMITING SYSTEM

FUEL LIMITING SYSTEM: ACCELERATION EXAMPLE

IDLE SYSTEM

ENGINE IDLE CONTROL

FUEL MANIFOLD

20 FUEL NOZZLES

FUEL NOZZLES

FUEL NOZZLE INSTALLATION

FUEL NOZZLE INSTALLATION

FUEL NOZZLE INSTALLATION

COMPRESSOR INLET TEMPERATURE (CIT) SENSOR

COMPRESSOR INLET TEMPERATURE (CIT) SENSOR

THIS CONVERTS COMPRESSOR INLET AIR TEMPERATURE INTO HYDRAULIC SIGNAL FOR MEC.

6 O´CLOCK

COMPRESSOR DISCHARGE PRESSURE (CDP)

BLEED BIAS SYSTEM

BLEED DEMANDS

HIGH MAINTAIN RAPID ACCELERATIONS RATES

LOW ENABLES ADEQUATE STALL MARGINS

BLEED BIAS SENSOR

4 O´CLOCK, TRANSMIT PNEUMATIC SIGNALS

(CBP) TO THE MEC

BLEED BIAS FUNCTION DIAGRAM

N2 CONTROL ALTERNATOR SPEED SENSOR (Flight Deck)

N2 CONTROL ALTERNATOR SPEED SENSOR (Flight Deck)

N2 CONTROL ALTERNATOR SPEED SENSOR (Mechanical)

N1 SPEED SENSOR

PS12 PRESSURE SENSING

T12 TEMPERATURE SENSOR

T12 TEMPERATURE SENSOR

T2.0 FAN INLET TEMPERATURE SENSOR

T2 HYDROMECANICAL SENSOR

SIGNAL HYD TO THE MEC PROPORTIONAL TO THE FAN INLET TEMPERATURE

11 O´CLOCK, FAN INLET DUCT

TEMPERATURE SENSORS

T12

T2.0

POWER LEVER ANGLE (PLA)

POWER LEVER ANGLE (PLA)

RVDT: Rotary Variable Differential Transducer

POWER MANAGEMENT CONTROL

POWER MANAGEMENT CONTROL

PMC CONNECTORS AND ADJUSTMENT WELL LOCATION

PMC - CONTROL MODE

POWER MANAGEMENT CONTROL CIRCUIT

PMC SENSOR WIRING

FUEL FLOWMETER INDICATING SYSTEM

FUEL FLOW TRANSMITTER

FUEL FLOW TRANSMITTER FLOW DIAGRAM

FUEL FLOW INDICATING

COFFE BREAK