Narrative:

Aircraft mechanic/refueling crew misfueled aircraft. This resulted in 6000 pounds left wing heavy condition. Mechanic/refueling crew did not understand fuel gauge inoperative procedures (right inner tank fuel gauge was inoperative). Aircraft maintenance log entry was incorrect and showed the wrong fuel on the aircraft.

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Original NASA ASRS Text

Title: A HVY L WING CREATED BY THE MISFUELING OF AN A300 CARGO FLT WITH A R INNER FUEL TANK GAUGE INOP IS DISCOVERED AFTER TKOF FROM ZZZ, US.

Narrative: ACFT MECH/REFUELING CREW MISFUELED ACFT. THIS RESULTED IN 6000 LBS L WING HVY CONDITION. MECH/REFUELING CREW DID NOT UNDERSTAND FUEL GAUGE INOP PROCS (R INNER TANK FUEL GAUGE WAS INOP). ACFT MAINT LOG ENTRY WAS INCORRECT AND SHOWED THE WRONG FUEL ON THE ACFT.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.