As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLIGHT, THE RUDDER BOOST ANNUNCIATOR INTERMITTENTLY CAME ON SEVERAL TIMES DURING FLIGHT. FOLLOWED ABNORMAL PROCEDURES, DIVERTED AND LANDED UNEVENTFULLY. MAINTENANCE TROUBLESHOT AND REPLACED THE AUTOPILOT TRIM SWITCH. SYSTEM OPS CHECKED WERE GOOD. AIRCRAFT WAS RETURNED TO SERVICE.