As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORT MULTIPLE EICAS MESSAGES DISPLAYED INCLUDING MAIN DECK FIRE. NO FIRE NOTED BY CREW. EMERGENCY DECLARED.. EIU DISAGREE STATUS MESSAGE OCCURRED DURING CRUISE. MAINT MESSAGE 31454. REPLACED EIU RT IAW FIM TASK 31-61-00-812-A62, AMM TASK 31-61-01-024-164, 31-61-01-424-165, AND 31-61-10, PAGEBLOCK 201. INSPECTED CABIN ON GROUND, NO EVIDENCE OF FIRE.