As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT AFTER TAKEOFF THEY RECEIVED A LANDING GEAR AIR & GND FAIL MESSAGE & THAT THE LG WOULD NOT RETRACT. THE CREW RETURNED TO FIELD & LANDED WITHOUT INCIDENT. ONCE ON THE GND SEVERAL FAIL MESSAGES APPEARED. MX FOUND THAT THE RT INBD TIRE HAD SEPARATED. PERFORMED A TIRE SEPARATION INSPECTION. MX REPLACED THE NR 3 MLG TIRE. MX ALSO REPLACED THE W510, W509, W514 & W512 LG HARNESSES. LG SWINGS & OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.