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 INBOUND INTO ORD DUE TO THE FLIGHT CREW REPORTNG THAT FCU 1 FAILED DURING DESCENT AND THE FLIGHT CREW ACCOMPLISHED THE PROCEDURE TO RESET THE SYSTEM WHICH RESOLVED THE FAULT - THE AIRCRAFT LANDED SAFELY AT ORD WITHOUT FURTHER INCIDENT - MAINTENANCE ACCOMPLISHED THE AFS TEST AND THE LAND CAT 3 TEST WITH NO ISSUES NOTED