As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON ARRIVAL AT 2500 AGL FO SIDE LOST FMC W/ ASSOCIATED VTK FOR 20 SECONDS BEFORE RESETTING BACK TO OPERATIONAL. THEN ON TAXI IN BOTH CA & FO LOST L & R FMC INFO W/BOTH ASSOCIATED VTK DISPLAYED FOR 20 SECONDS BEFORE RESETTING BACK TO NORMAL (OPERATIONAL). GROUNDED - YES. FMC SHOWS SOFTWARE RESET. ACCOMPLISHED B737-900 FIM 34-61 TASK 807. OPS TEST NORMAL.