As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FMC'S BLANKED ON LANDING THEY RESTORED ON THEIR OWN. GROUNDED - YES. R/H FMC HAD A PGM FAULT & REBOOTED BOTH. OPS CK OK REF B737-900 FIM 34-61 TSK 807 REBOOTED BOTH ON IT'S OWN. NO GND FAULTS. PRECAUTIONARY - CYCLED PWR TO R/H & L/H FMC FOR A RE-SYNC. BITE TEST OF R/H & L/H FMC'S OK REF FIM 34-61 TASK 801 ETOPS GND VERIFICATION OK.