Narrative:

We had flown from bdl to roc. We fueled in roc, after which the first officer and I both did a walk around. The passenger were loaded and we taxied out. Just after gear up I glanced out the left side and saw fuel venting out the left wing cap at a good rate. The cap appeared to be in place. I advised the tower of my problem and advised them I was returning to land and requested the equipment to stand by. We landed without incident and taxied to the gate. Cap was checked in place and tab down. Maintenance found the 'O' ring flat on the cap. Cap was replaced and the aircraft continued the line.

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Original NASA ASRS Text

Title: FUEL EQUIP PROBLEM EVIDENT TO PIC OF COMMUTER ACFT AS FUEL SEEN SIPHONING FROM FUEL CAP ON INITIAL CLB.

Narrative: WE HAD FLOWN FROM BDL TO ROC. WE FUELED IN ROC, AFTER WHICH THE FO AND I BOTH DID A WALK AROUND. THE PAX WERE LOADED AND WE TAXIED OUT. JUST AFTER GEAR UP I GLANCED OUT THE L SIDE AND SAW FUEL VENTING OUT THE L WING CAP AT A GOOD RATE. THE CAP APPEARED TO BE IN PLACE. I ADVISED THE TWR OF MY PROBLEM AND ADVISED THEM I WAS RETURNING TO LAND AND REQUESTED THE EQUIP TO STAND BY. WE LANDED WITHOUT INCIDENT AND TAXIED TO THE GATE. CAP WAS CHKED IN PLACE AND TAB DOWN. MAINT FOUND THE 'O' RING FLAT ON THE CAP. CAP WAS REPLACED AND THE ACFT CONTINUED THE LINE.

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.