Fuel Flashcards
What are the 3 sections of each wing tank?
-Main Tank
-Collector Tank
-Surge Tank
What types of fuel are approved?
-JET A
-JET A-1
-JP8
How many total fuel pumps are contained in each wing tank? Name each.
-1 Main Ejector Pump
-1 Scavenge Ejector Pump
-1 DC Aux Pump
What is the function the Main Ejector pump?
Draw fuel from the Collector Tank into the line that supplies the Fuel Management Unit
What is the function of the Scavenge Ejector Pump?
Maintain the fuel level in the Collector Tank
How are the Main and Scavenge Ejector pumps powered?
Motive Flow from Fuel Management Unit
With respective PUMP switch in AUTO, when does the DC Aux pump operate?
-Low Pressure in engine supply line with START/STOP knob in RUN
-Crossfeed
What occurs when the FUEL XFEED knob is moved to the LO1/LO2 position?
-Crossfeed (XFEED) valve opens
-Supply side Dc Aux Pump turns on
Can fuel be transferred from one wing tank to the other?
No, the Crossfeed function is designed only to feed both engines from one tank
How may the DC Aux pump be operated manually?
Select the respective DC PUMP switch to the ON position
Can the DC Aux pump operate with the respective PUMP switch in OFF?
No
What pilot action closes the Fuel Shutoff valves?
Depressing the Fire SHUTOFF 1/2 button
Under what condition does the yellow FUEL 1 (2) LO LEVEL (CAS) illuminate?
Less than 310lb fuel remaining in the collector tank
What is indicated by the yellow FUEL IMBALANCE (CAS)?
Fuel imbalance is equal or greater than 220lb. CAS remains illuminated until imbalance is below 88lb.
What is indicated by the white FUEL EQUAL (CAS)?
Fuel imbalance is less than 44lb. with XFEED valve open
