As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING, FMC P/RST LIGHT, CAPTAIN ND VTK LIGHT CAME ON WITH NO FMC PROMPT ON BOTH MCDUS. DID THIS 7-8 TIMES ON TAXI IN. GROUND PROXIMITY INOPERATIVE LIGHT ALSO CAME ON INTERMITTENTLY. ACFT GROUNDED. ACCOMPLISHED FIM 34-61 TASK 838. DATA LINK QUE PROBLEM CLEARED. DUAL FMC OPS RESTORED AND GROUND PROXIMITY DATA RESTORED.