As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN LEVEL CRUISE FLIGHT AT FL310, AMBER CAS "WING TANK OVER FILL R", CAME ON AND FUEL WAS VENTING OUT OF THE RT WING. THE CAS MESSAGE WENT OUT, FUEL STOPPED VENTING. THIS ISSUE REPEATED IT SELF TWICE DURING THIS FLIGHT. FOUND FUEL PANEL WITH RELIEF VALVE INSTALLED IN INCORRECT LOCATION. INSTALLED IN CORRECT LOCATION. REMOVED VENT FLOAT VALVE AND INSTALLED NEW VALVE AND O-RINGS IAW MM 28-10-04.