As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED RECEIVING A STEERING INOP CAUTION MSG JUST AFTER TAKEOFF. RAN THEIR QRH AND COULD NOT GET THE MESSAGE TO CLEAR. THE CREW DECLARED AN EMERGENCY AND DIVERTED TO PHL FOR THE LONG RUNWAY. ON ARRIVAL THE CREW HAD THE CABIN PREPARED FOR AN EMERGENCY. ONCE ON THE GROUND THE AIRCRAFT WAS MET BY EMERGENCY EQUIPMENT AND TAXIED TO THE GATE WITHOUT FURTHER INCIDENT. CW SYS RESET MSG DID NOT REOCCUR.