As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED STEERING INOPERATIVE AND WEIGHT ON WHEELS, INPUT CAUTION MESSAGES JUST AFTER ROTATION. MESSAGE CLEARED WHEN GEAR WAS SELECTED DOWN. CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT AND FOUND NLG WOW SENSOR HAD FAULTED. MAINTENANCE INSPECTED NLG, FOUND HEAVY ICE ON SENSORS, REMOVED ICE, VERIFIED PROPER PROXIMITY SENSOR GAP AND PERFORMED CHECKS IAW AMM. ACFT RELEASED FOR SERVICE.