What was found
FUEL RUNNING OUT OF LEFT VENT WHEN TOPPED OFF. INSPECTION REVEALED LEFT VENT TUBE HAD A HOLE CHAFED IN IT BY FUEL FILLER PORT SCREEN. THIS AIRCRAFT HAD RAM WINGLETS INSTALLED SEVERAL HOURS BEFORE THIS OCCURED. LINE MAY HAVE BEEN BENT DURING THIS INSTALLATION, CAUSING LINE TO CHAF ON FILLER PORT SCREEN. INSPECTED RIGHT SIDE WITH NO CHAFING FOUND. RECOMMEND THIS LINE TO BE INSPECTED WHEN FUEL TANKS ARE OPENED, OR VISUAL INSPECTION THRU FILLER PORT.