As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH ATL-MYR, AIRCRAFT AUTOPILOT TRIM RAN AWAY FULL PITCH UP AND WOULD NOT DISENGAGE. CAPTAIN PULLED CIRCUIT BREAKER, REGAINED CONTROL AND DECLARED AN EMERGENCY. AIRCRAFT LANDED SAFELY IN MYR WITHOUT FURTHER INCIDENT. REMOVED AND REPLACED CAPTAINS ELEVATOR TRIM SWITCH. OPERATIONAL CHECKS WERE GOOD IN ALL MODES, AIRCRAFT WAS RELEASED FOR FURTHER SERVICE. (M)