Narrative:

Just prior to boarding for an XB30 departure, aircraft for flight X for lax and flight Y for sfo were changed without explanation and flight lax was rescheduled for XB15 local to accommodate passenger. Flight Y sfo had 82000 pounds fuel needed for leg to sfo. Dispatch fuel to lax on flight was about 74000 pounds. Rather than defuel, the current load was acceptable and within limits for flight to lax. Unknown to us, the crew for flight Y had requested additional fuel and the fueler mistakenly added approximately 6000 pounds in the center wing of aircraft X. We noticed the increased fuel just prior to pushback, but failed to realize this put us overweight for taxi by about 1000 pounds and entered an updated fuel of 87200 pounds. The aircraft was pushed back at XC18 local, engines started, and then a message from load control was observed on ACARS alerting us of a probable overweight taxi situation. I stopped the aircraft while a final determination was made, then taxied back to the gate where sufficient cargo was off-loaded and a required maintenance inspection accomplished. A combination of errors, but ultimately my fault for missing the change in gross weight. Aircraft departed at about XC38 local, arriving lax about 1 hour 30 mins late.

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Original NASA ASRS Text

Title: A B767-200 PIC'S RPT ON AN OVERWT TAXI INCIDENT THAT OCCURRED WHEN OVERFUELED AT THE RAMP PRIOR TO DEP FROM JFK, NY.

Narrative: JUST PRIOR TO BOARDING FOR AN XB30 DEP, ACFT FOR FLT X FOR LAX AND FLT Y FOR SFO WERE CHANGED WITHOUT EXPLANATION AND FLT LAX WAS RESCHEDULED FOR XB15 LCL TO ACCOMMODATE PAX. FLT Y SFO HAD 82000 LBS FUEL NEEDED FOR LEG TO SFO. DISPATCH FUEL TO LAX ON FLT WAS ABOUT 74000 LBS. RATHER THAN DEFUEL, THE CURRENT LOAD WAS ACCEPTABLE AND WITHIN LIMITS FOR FLT TO LAX. UNKNOWN TO US, THE CREW FOR FLT Y HAD REQUESTED ADDITIONAL FUEL AND THE FUELER MISTAKENLY ADDED APPROX 6000 LBS IN THE CTR WING OF ACFT X. WE NOTICED THE INCREASED FUEL JUST PRIOR TO PUSHBACK, BUT FAILED TO REALIZE THIS PUT US OVERWT FOR TAXI BY ABOUT 1000 LBS AND ENTERED AN UPDATED FUEL OF 87200 LBS. THE ACFT WAS PUSHED BACK AT XC18 LCL, ENGS STARTED, AND THEN A MESSAGE FROM LOAD CTL WAS OBSERVED ON ACARS ALERTING US OF A PROBABLE OVERWT TAXI SIT. I STOPPED THE ACFT WHILE A FINAL DETERMINATION WAS MADE, THEN TAXIED BACK TO THE GATE WHERE SUFFICIENT CARGO WAS OFF-LOADED AND A REQUIRED MAINT INSPECTION ACCOMPLISHED. A COMBINATION OF ERRORS, BUT ULTIMATELY MY FAULT FOR MISSING THE CHANGE IN GROSS WT. ACFT DEPARTED AT ABOUT XC38 LCL, ARRIVING LAX ABOUT 1 HR 30 MINS LATE.

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.