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NOTE: The Fuel Measuring Stick Manual provides instruction for using the measuring stick readings and a set of conversion tables that relate stick readings and airplane attitude to obtain tank quantity. Ensure that the manual corresponds to the units on the measuring stick and the weight units of the airplane configuration.
C. Empty the associated tank, then refill with a known quantity of fuel using the refuel truck meter or transfer fuel from a tank with an operative fuel quantity indicator.
D. For a flight not requiring additional fuel, the FMC CALCULATED fuel quantity recorded at the end of the previous flight may be used to determine total fuel quantity. The fuel quantity in the affected tank may then be determined by subtracting the fuel in the tanks with functional indicators from the FMC CALCULATED fuel quantity recorded.
NOTE: With a fuel tank quantity gauge inoperative, the total fuel quantity indication (MEL 28-41-7) will be blank.
2. Operational Program Software part number is shown on the FMC IDENT page.: OPERATIONS (O)
Review the log book to verify fuel flow indications are operating normally. Total fuel quantity must be calculated and manually initialized on FMC Performance Initialization page. Flight crew should monitor FMC Fuel Used, FMC Calculated Fuel and operative tank fuel quantity indications (FQIS) to ensure fuel usage is normal.
1. Operate the flight with fuel crossfeed valve(s) closed (unless directed otherwise below).
2. Compare FMC Calculated Fuel with the flight plan fuel remaining at each way-point or fix for which predicted fuel use is available.
3. Monitor fuel usage for any unusual decrease in fuel quantity and/or a fuel imbalance.
4. A fuel leak may be evidenced by one or more of the following:
A. Fuel quantity decreasing at an abnormal rate.
B. Excessive fuel flow.
C. Fuel imbalance - an increasing fuel imbalance rate of approximately 900 kg/hr or more should be considered a fuel leak.
NOTE: FUEL CONFIG advisory message or light will not display for a fuel imbalance condition when left or right FQIS is inoperative.
D. Excessive lateral trim - an imbalance of 725 kg will require approximately one unit of aileron displacement to hold the wings level.
E. Visual observation of fuel spray from the strut/engine.
F. An engine flameout.
5. For operation with center tank fuel, when center tank fuel is depleted, verify that the airplane is at the point predicted by the flight plan.
NOTE: If center tank fuel exhaustion precedes the predicted point, a fuel leak should be suspected.
6. If an engine fuel leak is confirmed, perform ENGINE FUEL LEAK Non-Normal Checklist.
NOTE: Procedures to confirm an engine fuel leak are contained in Miscellaneous Section 5, Item 5-28-1.0
B757 - 200 MINIMUM EQUIPMENT LIST
REPAIR INTERVAL B 2 NUMBER INSTALLED
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