As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WING TANK O FULL RT MESSAGE RECEIVED IN CRUISE FLIGHT 230 WITH APPROXIMATELY 2700 LBS IN EACH WING TANK & NO FUEL IN THE CTR TANK. FUEL WAS OBSERVED VENTING FROM RT WING TIP. AFTER YAWING ACFT MESSAGE DISAPPEARED & FUEL STOPPED VENTING. PREVIOUSLY WING TANK O FULL LT MESSAGE HAD BEEN RECEIVED MOMENTARILY. REPLACED RT WING OTBD FLAPPER VLV IAW 750 MM, CH 28-10-05. OPERATIONS & LEAK CHECKED GOOD.