As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT CENTER FUEL TANK QTY ROSE FROM 0 TO 1300 AND RIGHT WING DOWN 2K LESS THAN LEFT WING. [06-20-07] AT DISPATCH TIME, FUELER COULD NOT OPEN RIGHT WING FILL VALVE FOUND RT WING FUEL FILL VALVE STUCK IN THE OPEN POSITION. REPLACED VALVE AND OPS CHECKED NORMAL.