What was found
FMC FAILED CPT SIDE (FMC P/RST, VTK, MAP-MAP) AFTER SEVERAL MINUTES THE FAILURE SWITCHED TO THE FO SIDE. WE RAN THE FMC FAIL CHECKLIST AND SWITCHED THE FMC SOURCE TO BOTH ON L. FMC RIGHT REGAINED FUNCTION WITHIN 15 SEC. RETURNED THE FMC SOURCE SWITCH BACK TO NORMAL. FMC OPERATED NORMALLY THE REMAINDER OF THE FLIGHT. GROUNDED - YES. REF. B737-900 FIM TASK 34-61 TASK 835 REBOOTED & RESYNC'ED FMC'S. NORM OPS RESTORED CPT & FO'S FMC BITE TESTS OK REF B737-900 AMM 34-61 TSK 801.