How many fuel tanks and where?
2 fuel tanks
integral wing tanks (wet wing)
How many pumps in each tank?
What type?
3 pumps
1 ejector pump
1 scavenge ejector pump
1 electric boost pump
normal conditions:
what supplies fuel to the engine?
Ejector pump
to engine on same side (left wing ejector feeds left engine)
What is motive flow?
Utilizes Bernoulli’s principle.
Motive flow is drawn from high-pressure fuel supply line (engine above idle speed) to power ejector pump inside airframe collector tank.
What is the purpose of the scavenge ejector pumps?
To keep fuel at a proper level in the collector tanks to ensure constant fuel to the primary ejector pump, and then engine
When is the electric boost pump activated?
Engine start
Cross feed (fuel transfer)
primary ejector pump failure
low pressure
What prevents differential pressure between the fuel tanks, and helps prevent fuel spills?
Fuel vent system
including a NACA air inlet/outlet
What happens when the Xfeed switch is selected to LO 1
Opens XFEED valve
DC pump on right wing
- both engines utilize fuel from right wing
opposite for LO 2
Can you cross feed for takeoff/lading?
no
FOHE?
Fuel oil heat exchanger
cools oil
heats fuel to prevent freezing
What would cause a FUEL IMBALANCE CAS message
220 lbs fuel imbalance
Can you Defuel?
Yes,
dump valve under each wing
What monitors single point fueling?
EFCU - Electric fuel control unit
How long to fuel from empty to full?
50 psig - less than 12 minutes
Single point fuel tests.
how many?
explain
2 tests
Lmap test - all lights come on
Shutoff test - When SHUT OFF TEST switch is held up during pressure refueling LH TANK and RH TANK indicator lights must come on indicating SOV has closed
- FAIL light off
NO GPU avialable can you use single point fueling?
Yes, select the power switch to BATTERY (in the fuel panel)
FUEL LO LEVEL CAS dispalayed means what?
310 lbs of fuel remaing in respective tank
How to manually close a fuel shutoff valve
By pushing FIre shutoff pushbutton for respective side.
What happens to fuel quantity indication if one tank quantity indication fails?
total fuel indication will be lost
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AOM limitations (NEED TO KNOW) Rev. 7 Mar 2532
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AOM/AFM limitations (nice to to know) Rev. 7 Mar 2550
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QRC Immediate Action Items (NEED TO KNOW) rev. 29 MAR 237
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QRC Review (NEED TO KNOW) Rev. 29 Mar 235
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General19
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Flight controls17
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Avionics18
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Fuel19
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Powerplant14
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Fire Protection7
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Pressurization4
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Ice and Rain9
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Hydraulics10
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Landing Gear5
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Electrical20
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Oxygen4
