As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW RETURNED TO FIELD FOR A LANDING GEAR AIR/GROUND FAIL MESSAGE AND ALSO REPORTED A FAINT ELECTRICAL ODOR ON TAKEOFF. THE CMC WAS DOWNLOADED AND NO FAULT MESSAGES WERE PRESENT. AL RELAY PANELS WERE INSPECTED WITH NO DAMAGE NOTED. THE LGEU WAS REPLACED AND THE GEAR WAS SWUNG SEVERAL TIMES WITH NO FURTHER DEFECTS NOTED.