What was found
WING TANK O'FULL R AMBER CAS ILLUMINATED - WING O' FILL AMBER CAS MSG ILLUMINATED EN ROUTE. ACCOMPLISHED CHECK LIST AND VERIFIED WE WERE LOSING FUEL. TRIED VARIOUS ATTITUDE AND PITCH CHANGES AS WELL AS A 360 DEG TURN BUT NO CHANGE. THERE WAS VERY LITTLE FUEL IN THE CENTER TANK WHEN IT STARTED AND EVEN AFTER THE CENTER WAS EMPTY IT WAS STILL BLOWING OUT. ////SIGN-OFF////REMOVED AND REPLACED THE RH WING OUTBOARD FLOAT VALVE. FUELED CENTER TANK, PERFORMED FUEL TRANSFER TO RH WING SEVERAL TIMES, OPS CHECK GOOD. LEAK CHECK OF THE FLOAT VALVE ACCESS FUEL PANEL GOOD. WORKED IAW 750 MM 28-10-04