As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB AT APPROX 8,000FT ANTI-ICE DUCT WARNING MESSAGE APPEARED. DID NOT ENTER ICING CONDITIONS DURING CLIMB. RAN QRH AND CLEARED MESSAGE AND REMAINED OFF. (FLIGHT 5473 - FILED CLOSED) TROUBLESHOT ANTI-ICE DUCT WARNING MESSAGE IN REF WITH CRJ 200 FIM 36-20-00. PERFORMED OPERATIONAL CHECK OF WING ANTI-ICE CONTROL AND INDICATION SYSTEM IN REF WITH CRJ 200 AMM 30-12-00. OPS CHECK GOOD AT THIS TIME.