As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHORTLY AFTER TAKEOFF, A STEERING INOP MESSAGE WAS RECEIVED. THE FLIGHT PROCEEDED TO CLT AND THE CREW DECLARED AN EMERGENCY ONCE THEY GOT CLOSER TO CLT. / REMOVED AND REPLACED LANDING GEAR SELECTOR VALVE IAW CRJ 900 AMM 32-32-10-000/400-801. STEERING FAULT DID NOT REPOPULATE DURING OPS TEST. OPS TEST AND LEAK CHECK GOOD AT THIS TIME.