As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNCOMMANDED PITCH TRIM DOWN DURING FLIGHT. FOUND ELEVATOR TRIM SERVO MOUNTING BRACKET CRACKED. REMOVED CRACKED BRACKET; LOCATED, DRILLED, AND INSTALLED NEW ELEVATOR TRIM SERVO MOUNTING BRACKET IAW GULFSTREAM GV SRM 51-42-00. P/N 1159C50423-129.