As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/O'S FMC FAILED IN DESCENT. RESTORED BY ITSELF IN 20 SECONDS. AFTER LANDING GOT FMC DISAGREE. GROUNDED - YES. PERFORMED B737-900 FIM 34-61 TASK 835 RIGHT FMC RESTORED TO NORMAL, GRD VERIFICATION SUCCESSFUL. RT FMC INFLT FAULT LOGGED WAS "WATCHDOG TIMER" OK FOR SERVICE.