As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED WING TANK O FULL LEFT MESSAGE DURING CRUISE AT 31000 FT, ANTI-ICE ON. TURNED OFF CENTER WING TRANSFER & YAWING ACFT HAD NO EFFECT. ACFT WAS VENTING FUEL FROM LT WING. APPROXIMATELY FIVE MINUTES LATER MESSAGE EXTINGUISHED WHILE DESCENDING THROUGH 25000 FT, 300 - 400LBS IMBALANCE RESULTED. INSPECTED LT FLOAT VALVE, NO DEFECTS NOTED. FOUND WING VENT TUBE TO WING SKIN CLEARANCE EXCESSIVE. ADJUSTED CLEARANCE IAW MM 28-10-07. OPS CHECKED GOOD.