As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOST FMS ON APPROACH INTO CHICAGO. RECEIVED RED FMS FLAG ON BOTH PFDS. FMS DISPLAY SHOWS NO INPUT DATA, FMS. ***AIRCRAFT REMOVED FROM SERVICE*** NOTED BY MAINTENANCE COMPLIED WITH BOMBARDIER/MHI FIM RESET, MESSAGE CLEARED AND FMS OPERATES NORMALLY.