As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED A LANDING GEAR AIR/GROUND FAIL MESSAGE DURING CLIMBOUT FROM CLT. THE LOG RUNWAY WAS REQUESTED AT CLE BUT NO EMERGENCY WAS DECLARED BY THE CREW. THE AIRCRAFT LANDED WITHOUT INCIDENT AND TAXIED TO THE GATE WITHOUT INCIDENT. MAINTENANCE PERFORMED A GVI OF THE AIR/GROUND PROX SWITCHES AND HARNESSES. THE LEFT MAIN LANDING GEAR FORWARD AND AFT WEIGHT ON WHEELS CONNECTORS LOOSE. THE CONNECTORS WERE RE-SECURED AND THE AIR/GROUND SYSTEM OPERATED NORMALLY.