As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING, INTERMITTENT FMC FAILURE LEFTSIDE. GROUNDED - YES. PERFORMED B737-900 FIM 34-61 TASK 836, STEPS A THRU E. GROUND VERIFICATION OF THE LEFT SIDE FMC COMPUTER SUCCESSFUL. FMC SWITCH BACK TO NORMAL POSITION. FMC IS AN ETOPS SIGNIFICANT SYSTEM.