As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MDW/CHM - FLT 5080 - DURING CRUISE ALTITUDE, THE RIGHT THRUST REVERSER UNLOCK MESSAGE ILLUMINATED AT AN ALTITUDE OF 23,000 FEET OVER FWA. THE CREW DECLARED AN EMERGENCY AND C/W THE DFM CHECK LIST AND DIVERTED TO DAY. THE AIRCRAFT LANDED IN DAY WITH NO INCIDENT AND THERE WAS NO EVIDENCE OF THE THRUST REVERSER DEPLOYING IN-FLIGHT. (X)