LR 45

INTRODUCTION

• Description on fuel system
• Limitations
• Reference manuals (Afm, cfm, pilot manual, qrh, mel)
• STandard operating practices-sop
• Fuel savings techniques

PRE FLIGHT

• Fueling practices-fom/cfm
• Approved fuels
• Converting gallons-liters

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FUELING

• Limitations
• Sppr
• Gravity refueling
• Check fuel cap

LIMITATIONS

• Lr45-6062 lr40-5375
• Sppr 20-55 psig defueling -10 psig
• Approved fuels: jp-5/jp-8/jet a/ jet a-1 (refer to addendum i)
• Apu operations during gravity refueling prohibited

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SPPR-SINGLE POINT PRESSURE REFUELING

• Sppr adapter-right side of a/c
• Fueling panel-hot bus
• Pre check valve
• Allows entire system to be filled

GRAVITY REFUELING

• Located above right engine pylon
• Drain vent/expansion lines before beginning
• 45 minutes fill a/c

WING TANKS

• 2 independent-1678# per side
• Fuel cells-wing root to just short of winglet
• Flapper valves allow fuel flow from outboard to inboard
• 4 scavenge pumps feed main jet pump
• Wings filled from fuselage tank

FUSELAGE TANK

• Single bladder located in aft fuselage
• Capacity: 45-2708 40-2021
• Allows system to be serviced thru sppr or gravity refueling
• Vent/expansion lines prevent over pressurization
• Naca vent pressurizes entire system

FUEL FLOW INDICATING SYSTEM

• Fuel quantity signal conditioner-8 probes per wing/1 fuselage
• Feeds dual fuel flow conditioner (dffc)
• Feeds dau (#1-left wing #2-right wing & fuselage)
• Feeds fms & eicas
• Qrh/mel-r fuel qty fault/ fuel qty fault

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STANDBY PUMPS

• 1 per wing
• Energized automatically on start-up
• Uses: start/x-flow/ de-fuel/back-up for main jet pump
• Apu-right pump and wing tank

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SOP-STANDARD OPERATING PRACTICES

• Fom
• Climb speed
• Cruise speed

FUEL SAVING TECHNIQUES

• Limit apu useage
• Climb!
• Cruise efficiently
• Descent
• Single engine taxi