What was found
ON FLIGHT 3897 THE CREW REPORTED AT LIFT OFF RECEIVED A CAUTION LANDING GEAR AIR/GROUND FAIL MESSAGE ON EICAS. THE CREW ELECTED TO RETURN TO CMH AND LANDED OVERWEIGHT WITH A NORMAL LANDING WITH A DESCENT RATE AT 100` PER MINUTE. THE AIRCRAFT WAS REMOVED FROM SERVICE. INSPECTED AND FOUND NOSE LANDING GEAR WEIGHT ON WHEELS HARNESS WOI9 DAMAGED. PERFORMED LANDING GEAR EXTENSION/RETRACTION TEST WITH NO FAULTS NOTED IAW EMB 145 AMM 32-003. NO INSPECTION REQUIRED FOR OVERWEIGHT LANDING DUE TO SINK RATE WITHIN LIMITS IAW AE ETN EM-05-009. THE AIRCRAFT WAS RETURNED TO SERVICE.