Fuel Flashcards
Fuel Xfeed knob off for…
TO, Landing, GA
Which MFD page shows fuel system and parameters?
Fuel synoptic page
Color for fuel quantities and temps in normal range?
Green
Total fuel quantity is showing red, what will you hear?
FUEL x2
Can fuel be transferred from one wing to another?
No
How does the Xfeed valve allow corrections in a fuel imbalance situation?
Allows both engines and APU to be fed by a single tank.
CAS message when difference between current fuel and expected fuel quantity is higher than 880lbs
Amber FUEL LEAK SUSPECTED
How many fuel pumps does each wing tank have?
2 DC pumps (main A & backup B) and 2 ejector pumps
What controls the main (A) fuel pump when the pump is in AUTO
FADEC
What’s controls the backup (B) fuel pump when in AUTO?
The FCU
4 times the backup fuel pumps will be commanded on in AUTO
Engine start
APU start or run
Low fuel pressure detected
Main pump failure
amber FUEL WING IMBALANCE triggered by…
Imbalance of more than 510lbs
Pressure refueling point and refuel/defuel panel location
Forward of right wing fuselage
How long does the system pre-check on the refuel/defuel panel take
About 10sec
Which switch on the refuel/defuel panel enables the plane to be refueled while powered by either APU/GPU or batteries?
Power selection switch
STOP REFUEL displays on refuel/defuel panel during fueling…
Fueling halted manually by moving refuel switch to OFF
Can the tanks be filled using the gravity ports on top of the wings?
Yes
Two different refueling methods
Pressure or gravity
How is fuel transferred from the FWD or VRTL tanks and where?
Automatically and to the wings and ONLY the wings
If AUTO fails for the FWD/VRTL tanks, how do we get the fuel?
Select the appropriate tank on the Fuel Transfer panel
When is TRANSFER operations from the FWD/VRTL tanks not allowed?
During XFEED, TO, landing, or GA
Total fuel capacity of Praetor 500
13,150lbs
Total USEABLE fuel on Praetor 500
13,050lbs
Max fuel tank temp
52C
Total fuel Amber and Red lights activated at?
Amber/ 1100 lbs remaining
Red/ 570 lbs remaining
When will INDIVIDUAL tank levels give an Amber or red warning?
Amber/ 550lbs
Red/ 290lbs
When will the Fuel imbalance light go out?
Tanks within 110lbs
Fuel equal XFEED OPEN cas message
Tanks within 90lbs
What are the 3 fuel tanks
- Main tank
- Collector tank
- Scavenge tank
When does the fuel temp indication turn Amber?
-37c
Describe fuel pump operation during engine start
- FCU turns on B/U pump
- FADEC turns on Main pump
- FCU turns off B/U pump
Fuel temp sensor located
The left wing
