What was found
AT FL330 WITH CENTER TANK GETTING CLOSE TO EMPTY,THE LEFT TANK READ 0.2 AND THE RIGHT TANK READ 8.5 ONCE CENTER TANK EMPTIED RIGHT TANK WAS IMBALANCED BY 700LBS. BALANCED FUEL AND SEEMED TO STAY THAT WAY FOR THE REST OF THE FLIGHT. GROUNDED - YES. PERFORMED FQIS BITE PROCEDURE, PER B737-800 FIM 28-41 TASK 801, NO PRESENT FAULTS INFLIGHT/FAULT HISTORY LEG 07 RECORDED FAULT 28-41109. PROCESSOR FAILED. PERFORMED FQIS GROUND TEST DISPLAYED GRD TEST COMPLETE PASS. PERFORMED CROSS FEED VALVE OPS TEST PER B737-800 AMM 28-22-21-710-801 NO DEFECTS NOTED. INTMT FAULT. A/C OK FOR SERVICE.