As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE CAPTAIN NOTICED ELEVATOR CONTROL WAS STIFF. AIRCRAFT DIVERTED TO NEAREST AIRPORT. LANDING WAS UNEVENTFUL. MAINTENANCE PERSONNEL DISCOVERED THE ELEVATOR PULLEYS AT FUSELAGE STATION 512 WERE ENCASED IN ICE. AIRCRAFT WAS THAWED, WATER DRAINED AND AIRCRAFT RETURNED TO SERVICE.