As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING F/O'S SIDE VTK FLAG ILLUMINATED. IT RECOVERED MOMENTARILY AND THEN CAME BACK ON. GROUNDED - YES. ALIGNED ADIRU'S, NO VTK FLAG PRESENT ON F/O ND. CHECKED INFLIGHT FAULTS AND RT FMC SHOWS PGM FAULT ON GRD AT 05:41Z TIME OF LANDING. PERFORMED FIM 34-61 TASK 807, FMC PROMPT IS STABLE AND SHOWING ON F/O MCDU.