As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIC - DURING A-CHECK, AIRCRAFT FAILED LANDING GEAR AIR-GROUND CHECK. RIC MX PERFORMED TROUBLESHOOTING AND FOUND LGEU NOT WORKING PROPERLY. MX REMOVED AND REPLACED LGEU AND PERFORMED OPERATIONAL CHECK SUCCESSFULLY. AIRCRAFT WAS APPROVED TO RETURN TO SERVICE.