What was found
NOSE WHEEL STEERING WARNING MSG DURING GEAR RETRACT. CREW REPORTED STANDARD TAKEOFF. SHORTLY AFTER TAKEOFF A STEERING WARNING MESSAGE APPEARED. CREW RAN QRH PROCEDURE MULTIPLE TIMES AND WERE UNABLE TO RESOLVE THE WARNING MESSAGE. CAPTAIN DECIDED TO DECLARE AN EMERGENCY FOR LANDING AT CHARLOTTE AIRPORT, IN ORDER TO USE THE LONGEST RUNWAY AVAILABLE. UPON LANDING CREW PERFORMED A SYSTEM RESET AND THE ISSUE WAS RESOLVED AND AIRCRAFT TAXIED TO THE GATE WITHOUT ANY FURTHER COMPLICATIONS. CAPTAIN REPORTED THAT MAINTENANCE WAS INSPECTING AIRCRAFT AFTER ARRIVAL AT GATE. TROUBLESHOT CAUTION MESSAGE AND FOUND NO DEFECTS. RETRACTED AND EXTENDED NLG, NO STEERING INOP MESSAGES OCCURED. ALL OPS CHECKS OF THE NWS MANIFOLD AND STEERING FUNCTION WERE GOOD