As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD INFLIGHT DFW-LHR. PILOT REPORTED LEFT FLIGHT MANAGEMENT COMPUTER FAILED. EMERGENCY DECLARED FLIGHT DIVERTED ORD LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED MODULE IN AIMS CABINET THAT HAD FAULTED. SYSTEM GROUND CHECK NORMAL OPERATION.