Fuel System Flashcards
What are the three ways the aircraft can be refueled?
Gravity, Pressure, and Closed Circuit
The APU draws its fuel from where?
No. 1 main fuel cell
On the fuel system selector, what does the XFD position do?
Allows engine to draw fuel from the opposite tank
Both main fuel tanks are in the _____ section of the aircraft.
Transition
The FUEL 1 LOW and FUEL 2 LOW cautions appears when?
Approximately 172 lbs. of fuel remain in the tank
Damage to the fuel system could result if refueling hose pressure exceeds _____PSI during pressure refueling or _____ PSI during closed circuit refueling.
55 PSI / 15 PSI
The engine driven fuel boost pumps are driven by __________?
The Ng section of the engine
What component purges fuel from the main fuel manifold on shutdown to prevent coking.
ODV
What alerts the pilot if the No. 1 or No. 2 fuel filter is being bypassed?
FUEL 1 BYPASS or FUEL 2 BYPASS caution
What component allows heat to be transferred from the engine oil to the fuel?
Liquid to liquid cooler
The APU uses approximately how many pounds of fuel per hour?
120 lbs hour
The APU fuel is supplied from which main fuel cell?
No. 1
What component controls the operation of the APU?
Digital Electronic Sequence Unit
- The PRIME BST PUMP ON advisory indicates what?
APU Boost pump switch is in the Prime or APU Boost position
FUEL 1 PRESS LOW caution indicates what?
Fuel pressure on the #1 engine is low (below 9 psi)
If both the FUEL 1 PRESS LOW and FUEL 2 PRESS LOW cautions appear, __________ is possible. Do not make rapid collective movements.
flameout
Underlined step for FUEL 1 BYPASS and FUEL 2 BYPASS indications.
Land as soon as possible
