As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB-OUT FROM ATL-TYS, THE CREW RECEIVED A STEERING INOPERATIVE CAUTION MESSAGE. THE QRH WAS COMPLIED WITH AND THE CREW DECLARED AN EMERGENCY. THE EMERGENCY VEHICLES WERE DISPATCHED, AND THE AIRCRAFT RETURNED TO ATL WHERE IT LANDED SAFELY. MAINTENANCE REMOVED AND REPLACED THE NOSE WHEEL STEERING PRESSURE SWITCH. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)