As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE FLIGHT FL350 PITCH TRIM FROZE AND PITCH TRIM ANNUNCIATOR ILLUMINATED. TRIM OPERATED NORMALLY AT AROUND 9,000 FT. EMERGENCY WAS DECLARED. LANDING WAS UNEVENTFUL. MAINTENANCE REPLACED THE ELEVATOR TRIM SERVO AND LUBRICATED THE ELEVATOR TRIM ACTUATORS. A SUCCESSFUL OPERATIONAL CHECK FLIGHT WAS PERFORMED. AIRCRAFT WAS RETURNED TO SERVICE.