As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TROUBLE SHOOTING FOR A "FLT CTL SYS" EICAS STATUS MESSAGE. AIRCRAFT WAS GROUNDED. MAINTENANCE FOUND CONNECTOR M27313 ON THE CONTROL STABILIZER TRIM MODULE TO HAVE PIN DAMAGE AND SIGNS OF BURNING. REMOVED AND REPLACED CONNECTOR AND REPLACED PINS IAW WDM 27-41-11 AND AMM 20-60-02. SYSTEM CHECKED NORMAL.