As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DUAL FMC FAILURE ON LANDING. FMC'S CYCLED SEVERAL TIMES ON TAXI IN. GROUNDED - YES. NO HISTORY- RIGHT FMC LOGGED NO FAULTS, LEFT FMC LOGGED "PGM FAULT". PERFORMED B737-800 FIM 34-61 TASK 807. LEFT AND RIGHT FMC'S FUNCTION NORMAL, OK FOR SERVICE. SEAMC ROBERT CONSULTED.