Fuel Flashcards
Your #1 fuel quantity is inoperative, how would you determine how much fuel is in the tank?
The Captain must monitor any fueling operations requiring the use of Fuel Measuring Sticks to ensure the accuracy of readings according to MEL procedures.
Where can you locate the charts used for verifying fuel quantity when using Fuel Measuring Stick readings?
A careful review of the associated MEL will refer you to the Special Procedures section of the MEL.
When does a fuel LOW PRESSURE light cause the MASTER CAUTION light to illuminate?
-Two LOW PRESSURE lights illuminated in same tank illuminate MASTER CAUTION and FUEL system annunciator lights. One LOW PRESSURE light causes MASTER CAUTION and FUEL system annunciator lights to illuminate on MASTER CAUTION light recall.
-With CTR tank FUEL PUMP switches ON, continuous illumination of one or both(as installed)LOW PRESSURE light(s) for 10 seconds illuminates MASTER CAUTION and FUEL system annunciator lights.
-With one CTR tank FUEL PUMP switch OFF, illumination of opposite CTR tank LOW PRESSURE light illuminates the MASTER CAUTION and FUEL system annunciator lights.
When does the fuel INBAL indication illuminate?
Main tanks differ by more than 1000 lbs.
When changing the position of the crossfeed switch, what indication should you see with the light?
Blue light illuminates BRIGHT then DIM when moving the switch from Close to Open. Blue light illuminates Bright then extinguishes when moving the switch from open to close.
When will the FUEL INBAL alert extinguish?
Imbalance is reduced to 200 lbs.
With a FUEL IMBAL indication, what resources 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 for 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 Captain declare Minimum Fuel
When having “committed to a specific airport,” it is determined that any change to the existing clearance to that airport may result with landing below the greater of:
-4,000 lbs
-Planned Final Reserve Fuel
When does the captain declare Emergency Fuel?
-The calculated useable fuel upon landing at the nearest airport where a landing can be made will be less than Planned Reserve Fuel.
-A low fuel state require immediate traffic priority.
What does the FUEL FLOW alert indicate? (MAX)
Engine fuel flow is abnormally high when compared to the FMC expected fuel flow. The 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 is the primary concern when the Fuel FILTER BYPASS light is illuminated?
Engine flameout may occur.
When does the INSUFFICIENT FUEL alert on the engine display and the MCDU scratchpad indicate in the MAX? How would the NG aircraft display the alert?
FMC fuel at the destination is predicted to be less than 2,000 lb. NG aircraft only display INSUFFICIENT FUEL as a scratchpad message in the MCDU.
