What was found
WHILE EN ROUTE, A DISCREPANCY WAS NOTED ON FMC BETWEEN CALCULATED AND TOTALIZER FUEL. THE AIRCRAFT WAS DIVERTED TO MKE TO INVESTIGATE. THE TOWER CONFIRMED FUEL LEAK FROM RT ENGINE PRIOR TO TOUCHDOWN. THE RT ENGINE WAS SHUTDOWN UPON TOUCHDOWN. MAINTENANCE FOUND O-RING ON TUBE ASSEMBLY TO RT HP FUEL PUMP PINCHED. THE O-RING WAS REPLACED. THE RT ENGINE WAS RUN AND LEAK CHECKS WERE GOOD.