As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB OUT, CREW NOTED LEFT FUEL PUMP ADVISORY LIGHT WAS ILLUMINATED AFTER SELECTING TO OFF. CREW THEN NOTED FUEL VENTING AT LEFT WING NACA SCOOP. LEFT AUX PUMP LIGHT SELF EXTINGUISHED AFTER APPROX 4-5 MINUTES. RETURN TO FIELD. LEFT TANK READS 200 POUND LESS THAN RIGHT TANK. NO LEAKS ON TAXI IN. R & R MFC AND FUEL PUMP ASSY. OPS AND LEAK CHECKED GOOD.