Narrative:

While in cruise phase of flight, l-hand fuel gauge dropped from approximately 6000 pounds to 2000 pounds. Aircraft had history of l-hand fuel gauge problems. Did company procedure for erroneous fuel indications and continued to destination. While working approach control approximately 15 NM from airport, suspect fuel gauge approached zero pounds. Feeling uncomfortable with suspect fuel gauge at zero, I turned on ignition and opened fuel xfeed valve. We had normal landing and taxied to parking. After deplaning, I went down and dropped l-hand wing dripless fuel sticks to check amount of fuel in wing tank. All 4 sticks dropped to bottom of tank. There was no fuel in l-hand wing tank. After a review of aircraft logbook fuel records and fuel slip for flight, we noticed an error in the fuel gauge amounts. At the time of refueling cockpit l-hand fuel gauge showed 3500 pounds, yet at the wing fueling station the fuel amount was recorded as 6600 pounds. Our company maintenance personnel are unclr how this could happen. The l-hand fuel quantity indicating system was once again placed on MEL as inoperative.

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Original NASA ASRS Text

Title: A DC9-30 IN CRUISE AT FL290, INDICATED THAT THE L FUEL QUANTITY INDICATOR DROPPED 4000 LBS. ON GND, WHEN TANK STICKS WERE CHKED, L TANK WAS FOUND EMPTY.

Narrative: WHILE IN CRUISE PHASE OF FLT, L-HAND FUEL GAUGE DROPPED FROM APPROX 6000 LBS TO 2000 LBS. ACFT HAD HISTORY OF L-HAND FUEL GAUGE PROBS. DID COMPANY PROC FOR ERRONEOUS FUEL INDICATIONS AND CONTINUED TO DEST. WHILE WORKING APCH CTL APPROX 15 NM FROM ARPT, SUSPECT FUEL GAUGE APCHED ZERO LBS. FEELING UNCOMFORTABLE WITH SUSPECT FUEL GAUGE AT ZERO, I TURNED ON IGNITION AND OPENED FUEL XFEED VALVE. WE HAD NORMAL LNDG AND TAXIED TO PARKING. AFTER DEPLANING, I WENT DOWN AND DROPPED L-HAND WING DRIPLESS FUEL STICKS TO CHK AMOUNT OF FUEL IN WING TANK. ALL 4 STICKS DROPPED TO BOTTOM OF TANK. THERE WAS NO FUEL IN L-HAND WING TANK. AFTER A REVIEW OF ACFT LOGBOOK FUEL RECORDS AND FUEL SLIP FOR FLT, WE NOTICED AN ERROR IN THE FUEL GAUGE AMOUNTS. AT THE TIME OF REFUELING COCKPIT L-HAND FUEL GAUGE SHOWED 3500 LBS, YET AT THE WING FUELING STATION THE FUEL AMOUNT WAS RECORDED AS 6600 LBS. OUR COMPANY MAINT PERSONNEL ARE UNCLR HOW THIS COULD HAPPEN. THE L-HAND FUEL QUANTITY INDICATING SYS WAS ONCE AGAIN PLACED ON MEL AS INOP.

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.