As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, THE CREW REPORTED A CAS MESSAGE INDICATING THE NOSE WHEEL STEERING (NWS) PROXY FAILED. THE CREW PERFORMED AN AIR-TURN-BACK. MAINTENANCE REPLACED NWS CONTROL VALVE, WIRING HARNESS AND NWS ELECTRICAL CONTROL UNIT (ECU). WITH OPS CHECKS GOOD THE AC WAS RETURNED TO SERVICE. (K)