As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT THE CREW REPORTED TO MAINTENANCE CONTROL THAT THEY HAD A "STAB TRIM RUN IN CRUISE", BUT THAT THEY WERE OK AND THE DISCONNECT WORKED FINE. THE RAN THE QRH FOR STAB TRIM AND LANDED IN CLT AT FLAPS 20. THE FLIGHT LANDED SAFELY AND DEPLANED AS USUAL. HOURS AFTER THEY ARRIVED IN CLT THE SHIFT MANAGER WAS INFORMED THAT THEY HAD DECLARED AN EMERGENCY. THE AIRCRAFT IS CURRENTLY IN MAINTENANCE.