Fuel Flashcards
Your #1 fuel quantity is inoperative. How would you determine how much fuel is in the tank?
The CA must monitor any fueling operations using the Fuel Measuring Sticks to ensure the accuracy of readings (per MEL)
Where can you locate the charts used for verifying fuel quantity when using fuel measuring stick readings?
MEL and Special Procedures section of MEL
When does a fuel LOW PRESSURE light cause the MASTER CAUTION to illuminate? (3 answers)
- 2 LP lights illuminated in the same tank = MC and FUEL system annunciation lights (vs. 1 LP light causes MC and FUEL on MC recall)
- With CTR tank FUEL PUMP switches ON, continuous LP light(s) for 10” = MC and FUEL lights
- With 1 CTR tank FUEL PUMP switch OFF, illumination of opposite CTR tank LP light = MC and FUEL lights
When does the fuel IMBAL indication illuminate?
Main tanks differ by >1,000#
Wen changing the position of the cross feed switch, what indication should you see with the light?
Blue light illuminates bright then dim when moving from closed to open.
Blue light illuminates bright then extinguishes when moving from open to close.
When will the Fuel IMBAL alert extinguish?
Imbalance reduced to 200#
With a Fuel IMBAL indication, what resource would you use to determine the type of documentation required?
FOM Event Reporting requirements
What are the primary reasons to avoid fuel imbalances?
Structural life of the airframe and landing gear, not controllability.
What is the risk of routine fuel balancing when not near the imbalance limit?
Pilot errors and not identifying a fuel leak in a timely manner.
When does the CA declare minimum fuel?
When having committed to a specific airport, CA determines any change to the existing clearance to that airport MAY result in landing below the greater of:
- 4,000#
- Planned final reserve fuel
When does the CA declare emergency fuel?
- The calculated useable fuel upon landing at nearest airport where a landing can be made will be <Planned Final Reserve fuel
- A low fuel state requires immediate traffic priority
What does the FUEL FLOW alert indicate (MAX)?
Engine fuel flow is abnormally high when compared to FMC expected FF. Message is displayed independently for each engine.
What does the illumination of the fuel FILTER BYPASS light indicate?
An impending or actual fuel filter bypass due to a contaminated filter
What does the illumination of the fuel FILTER BYPASS light indicate?
An impending or actual fuel filter bypass due to a contaminated filter
What is the primary concern when the fuel FILTER BYPASS light is illuminated?
Engine flameout may occur.
What does the INSUFFICIENT FUEL alert on the engine display and MCDU scratchpad indicate in the MAX? How would an NG display the alert?
FMC fuel at the destination is predicted to be <2,000#
NG only display INSUFFICIENT FUEL as a scratchpad message in the MCDU
