As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: AN EMERGENCY WAS DECLARED INTO DEN DUE TO REPORTING A FCU 1 FAILURE DURING ARRIVAL SEGMENT ON DESCENT. THE AIRCRAFT LANDED SAFELY AT DEN AND TAXIED TO THE GATE UNDER ITS OWN POWER. MAINTENANCE RESET FCU COMPUTER, PERFORMED ALL REQUIRED GROUND TEST PER TSM 24-00-00.