As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED AN ANTI-ICE DUCT WARNING MESSAGE DURING ROTATION ON TAKEOFF FROM CLT. AIRCRAFT RETURNED TO CLT AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND TROUBLESHOT THE AIRCRAFT USING THE AIRCRAFT MAINTENANCE MANUAL. MAINTENANCE REMOVED AND REPLACED HEAT SENSING ELEMENT A15WK AND PERFORMED CHECKS USING THE AIRCRAFT MAINTENANCE MANUAL. NO FURTHER DEFECTS WERE NOTED. AIRCRAFT WAS RELEASED FOE SERVICE.