(e)
Use the fuel measuring sticks to verify the actual fuel quantity in the tank with the an inoperative indicator.
(f)
Record the upload fuel quantity on the fuel sheet.
D. Fuel Measuring Sticks Method (Fig. 301)
(1) For the tank with the inoperative indicator, set the fuel measuring sticks to the necessary fuel quantity.
(a) Use the applicable document for the fuel measuring sticks.
NOTE: The subsequent is a list of the Boeing Company documents necessary for conversion of readings taken from the fuel tank measuring sticks, which may be calibrated in inches, pounds or kilograms.
DOCUMENT NUMBER TITLE
D6-32037 Fuel Quantity Data - U.S. Gallons for Ground Attitudes - Drip Sticks (Measuring sticks) in Inches
D6-32037-1 Fuel Quantity Data - Pounds for Ground Attitudes - Drip Sticks (Measuring sticks) in Inches
D6-32038 Fuel Quantity Data - U.S. Gallons for Ground Attitudes - Drip Sticks (Measuring sticks) in Pounds
D6-32039 Fuel Quantity Data - U.S. Gallons for Ground Attitudes - Drip Sticks (Measuring sticks) in Kilograms
D6-32616 Fuel Quantity Data - Kilograms for Ground Attitudes - Drip Sticks (Measuring sticks) in Inches
D6-32146 Fuel Quantity Data - Kilograms for Ground Attitudes - Drip Sticks (Measuring sticks) in Kilograms
D6-32628 Fuel Quantity Data - Imperial Gallons for Ground Attitudes - Drip Sticks (Measuring sticks) in Inches
(b) Make sure you know the attitude of the airplane.
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(2)
Set a container that can catch fuel below each of the extended fuel measuring sticks.
NOTE: This is not necessary if you use the tool (F72949) for the fuel measuring sticks.
(3)
Put fuel into the tank until fuel starts to fall in drops from the fuel measuring sticks.
NOTE: During the refuel operation, fuel can fall from the fuel measuring stick, No. 2, before the fuel quantity in the tank goes to the level shown on the stick.
(4)
Stop the refuel operation.
(5)
Let the fuel level in the tanks become stable for five minutes.
(6)
Examine the fuel measuring sticks again.
(7)
If fuel does not continue to fall from the fuel measuring sticks, continue to put fuel into the tanks.
(8)
When fuel falls from the fuel measuring sticks in drops, stop the refuel operation.
(9)
Continue to refuel the tank and let the fuel level become stable until the fuel continues to fall from the fuel measuring sticks after the five minute time.
(10)
Lock the fuel measuring sticks in the retracted position.
A. Put the Airplane Back to Its Usual Position
(1)
Do the necessary procedure to refuel the remaining tanks (AMM 12-11-02/301).
(2)
At the first maintenance opportunity, do the task to troubleshoot and repair the pressure fueling system (AMM 28-21-00/101).
3. AIRPLANES WITH A VOLUMETRIC TOP-OFF (VTO) SYSTEM; Refuel Operation -Early Fuel Quantity Shutoff
A. General
(1) This procedure refuels a fuel tank when the desired fuel quantity is less than expected (early shutoff). This early shutoff will occur only when a tank is filled to a level between 88 and 100% fuel and the ac power to the volumetric top-off (VTO) is interrupted. Generally ac power interruption is caused by one of these conditions:
(a)
Fueling power control switch (a proximity switch activated by the fueling station door) is accidentally deactivated.
(b)
External or APU ac power is interrupted.
(c)
Fueling quantity indicator TEST GAGES & FUELING PRECHECK switch is actuated.
(d)
Fuel quantity indicator TEST switch is actuated.
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B. Airplane Precautions
(1) Read and obey the precautions in this task: Precautions and Limits for Fuel Servicing (AMM 12-11-01/301).
WARNING: OBEY ALL THE FUEL SERVICING AND PRESSURE REFUEL PRECAUTIONS IN AMM 12-11-01/301. FAILURE TO OBEY THE PRECAUTIONS CAN CAUSE SERIOUS INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
C. Refuel Operation When an Early Fuel Shutoff Occurs
(1)
To reset the fueling shutoff valve with the early shutoff, do one of the subsequent steps:
(a)
With electrical power on, disconnect and immediately reconnect the J-1 connector on the face of the applicable tank volumetric top-off unit (AMM 28-09-100/001).
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