What was found
ON DEPARTURE FROM BNA FLT 3818, STEERING INOPERATIVE CAUTION MESSAGE ILLUMINATED, COMPLIED WITH QRH, NO FURTHER ACTION. EMERGENCY LANDING DECLARED BY CREW. REMOVED AND REPLACED NOSEWHEEL STEERING SELECTOR VALVE IAW CRJ AMM 32-51-25. OPS AND LEAK CHECK GOOD. PERFORMED GEAR SWING IAW AMM 32-30-00, OPS CHECK GOOD. (M)