Flashcards in Study Guide Fuel Deck (12)
Where is the temp taken from?
What types of pumps are in each wing?
Engine driven fuel pump, an AC fuel pump, an ejector pump and three scavenge pumps.
The right tank has a DC pump
What is the primary ejector pump?
A motive flow pump located in the collector tank that feeds fuel directly to the engines.
What is the purpose of the ACMP?
It is a backup in case the main ejector pump fails.
Used in engine starts.
Used for cross feed operations.
What is the purpose of the DC fuel pump?
Used for APU start or engine start if AC power or if the ACMP are not available.
What is the purpose of the scavenge pumps?
Transfer fuel from the main tanks into the collector boxes to ensure that the main ejector and ACMP are submerged in fuel.
What is the purpose of the collector box?
Keeps the main ejector pump and the ACMP submerged as to ensure constant fuel flow to the engines.
What is the surge/vent tank?
Collects fuel during wing down maneuvers and returns it to the main tanks when wings level.
Equalizes tank pressure with atmosphere in flight and during refueling.
What happens when the crossfeed switch is selected to LOW 1?
The crossfeed valve is open, ACMP 2 turns on and fuel is transferred from the right tank to both engines.
What is the only way to close the fuel SOV?
Pull the fire handle.
When will FUEL 1 or FUEL 2 LO LEVEL message appear?
When fuel has reach 660 pounds in that tank.