As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW GOT NOSE WHEEL STEERING INOP CAUTION MSG A FEW MINUTES AFTER TAKEOFF. FC RAN QRH AND TRIED CLEARING THE MSG EN ROUTE. UNABLE TO CLEAR IT IN THE AIR AND DECLARED EMERGENCY W/ CLT APPROACH. FLIGHT LANDED SAFELY ON 36C. MX RESET MESSAGE ON THE GROUND AND AIRCRAFT TAXIED IN UNDER ITS OWN POWER.