As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUELER REPORTED SMOKE FROM THE FUELING PANEL, EXTERNAL. NO SMOKE OBSERVED BUT OBSERVED FUEL DEFUEL SWITCH WAS FOUND TO BE LOOSE AND PUSHED IN. FOUND PART OF THE CIRCUIT BOARD IN THE REFUEL/DEFUEL CONTROL BOX BURNED. ALSO, PERFORMED GVI OF WIRES OF THE REFUEL/DEFUEL COMPARTMENT. NO DEFECTS FOUND. R & R THE REFUEL/DEFUEL CONTROL PANEL ON THE NR 2 ENGINE NACELLE IAW AMM TASKS 28-24-01-000-801, 28-01-400-801. OPS CHECKS GOOD. NO FURTHER DEFECTS NOTED.