As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LEVEL OFF AT FL22, 'PITCH TRIM' AMBER MESSAGE ON PFD CAME ON. DISCONNECTED A/P AND TRIED TO PITCH AIRCRAFT MANUALLY. TRIM WHEEL WOULD NOT ROTATE IN ELECTRIC OR MANUAL MODE. EMERGENCY WAS DECLARED AND DIVERTED TO KSAV. ACCOMPLISHED CHECKLIST PROCEDURE AND LANDING WAS UNEVENTFUL. MAINTENANCE FOUND WATER IN THE TRIM TABS. TRIM TABS WERE LUBED AND A SUCCESSFUL OCF WAS PERFORMED. AIRCRAFT WAS RETURNED TO SERVICE.