As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLT - FLT 1693 - ENROUTE TO TYS, 'GND/FLT CTL' MESSAGE APPEARED ON MULTI-FUNCTION DISPLAY. THIS MESSAGE APPEARED THEN RESET FIVE DIFFERENT TIMES. FLIGHT RETURNED TO CLT WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE RIGHT MAIN LANDING GEAR UPPER HARNESS AND CONNECTOR J1120B. REF: OPER CONTROL NR USAAF98037.