As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLIGHT#3141 THE CREW REPORTED A LANDING GEAR AIR/GROUND FAIL MESSAGE DURING FLIGHT ASSOCIATED WITH "THUMP" NOISE UNDER NOSE.THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT.MAINTENANCE REPLACED THE LEFT MAIN LANDING GEAR WOW PROXIMITY SWITCH WIRE HARNESS W510.OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVICE.