B737-700 FLT CREW MISCALCULATES FUEL LOAD AND DEPARTS 7000 LBS OVER PLANNED TKOF WT. ACFT WAS NOT OUT OF CTR OF GRAVITY OR WT LIMITS.
Synopsis
B737-700 FLT CREW MISCALCULATES FUEL LOAD AND DEPARTS 7000 LBS OVER PLANNED TKOF WT. ACFT WAS NOT OUT OF CTR OF GRAVITY OR WT LIMITS.
Narrative
WE WERE RUSHING TO MAKE THE GATE AVAILABLE FOR AN ARRIVING ACFT. MY FO HAD JUST BEEN REPLACED. WE BRIEFED AND RAN THE BEFORE START CHKLIST. UNFORTUNATELY; I HADN'T PERFORMED A FUEL AUDIT. WE WERE TANKERING FUEL TO LAX; AND WHEN ASKED FOR FUEL ON BOARD; I RESPONDED WITH THE ACTUAL FUEL ON BOARD; CLRED WITH THE MINIMUM. WE RECEIVED THE LOAD SHEET; CHKED THE WT AND BAL NUMBERS AND PLANNED FUEL; WHICH ALL CHKED WITH THE RELEASE. UNFORTUNATELY; ALL OF THE FUEL NUMBERS WERE OFF ON THE LOAD SHEET BECAUSE THE 'FUEL IN' WASN'T ADDED TO THE FUEL ADDED. WE WERE HVY BY 7000 LBS! TAXI AND TKOF WERE UNEVENTFUL; THANKS TO A LIGHT PAX LOAD AND A TKOF WT (WHEN CORRECTED); WELL BELOW ALLOWABLE TKOF GROSS WT. THE ERROR DIDN'T COME TO LIGHT UNTIL WE ARRIVED AT LAX AND FUELED FOR THE NEXT FLT. WE DIDN'T NEED ANY. THE OPS AGENT COULDN'T CLR THE FLT BECAUSE THE FUEL ON BOARD EXCEEDED THE FUEL WE STARTED WITH. HMMMM. THEN WE FIGURED IT OUT. OUR SUBSEQUENT FLT WAS UNEVENTFUL; BUT WE NEEDED TO BE DE-FUELED BY 900 LBS TO BE BELOW MAX LNDG WT. STOP THE BOARDING; TAKE OFF THE PAX; DE-FUEL; REBOARD AND GO. 30 MIN DELAY. HOW DID THIS HAPPEN? MY HABIT IS TO GET THE FUEL-IN OFF THE DISPATCH RELEASE. WHEN THE FO LEFT; HE HANDED THE DISPATCH RELEASE TO THE OPS AGENT AND WAS GONE. WHEN WE RUSHED THE PUSH; I NEGLECTED TO GET THE FUEL IN; BUT RATIONALIZED THAT SINCE WE WERE TANKERING FUEL; A SHORTAGE OF GAS WAS NOT AN ISSUE (MY FOCUS FOR THE FUEL AUDIT HAD BEEN TO PREVENT A SHORTAGE OF FUEL). THE NUMBERS ON THE LOAD SHEET ADDED UP; EXCEPT WHEN COMPARED TO THE FMC NUMBERS; WHICH WE BOTH MISSED. I THOUGHT I WAS PRETTY GOOD AT 'HACKING THE CLOCK' WHEN THINGS GOT RUSHED AND FORCING THE PACE TO SLOW DOWN; BUT THAT OBVIOUSLY WASN'T THE CASE TODAY. I MAKE IT A POINT TO ALWAYS DO A FUEL AUDIT; BUT RATIONALIZED IT AWAY IN A RUSHED TANKERING SITUATION. BOTTOM LINE: NO SHORTCUTS. ALWAYS DO THE AUDIT; AND ALWAYS MAKE SURE THE LOAD SHEET IS RIGHT IN ALL RESPECTS. THIS COULD HAVE BEEN A VERY UNHAPPY STORY HAD THE SITUATION BEEN DIFFERENT. I NEVER THOUGHT IT WOULD HAPPEN TO ME; BUT IT DID!
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Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.