As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, STEERING INOPERATIVE MESSAGE ILLUMINATED. RAN QRH THREE TIMES. MESSAGE PERSISTS. RETURN TO DEPARTURE. ON LANDING GEAR DOWN LANDING CHECK TRIED 1 MORE TIME IT WORKED AND ON TAXI MSG RETURNED. INTERROGATED NOSE STEERING ECU FLAGGED CAPTAIN'S STEERING TILLER. REPLACED CAPTAIN`S STEERING TILLER ASSY AND REPLACED STEERING PRESSURE HYDRAULIC SWITCH IAW AMM.