As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED INTERMITTENT LT REVERSER UNLOCKED CAUTION MESSAGE IN FLIGHT. MESSAGE WENT FROM INTERMITTENT TO STEADY. CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE DEFERRED LT THRUST REVERSER IAW MEL. ACFT RELEASED FOR SERVICE.