What was found
FLIGHT 5664 - RECEIVED LEFT ANTI-ICE DUCT WARNING MESSAGE ON CLIMBOUT FROM CVG. AIRCRAFT RETURNED TO CVG AND LANDED SAFELY. REMOVED AND REPLACED AFT BAY HEAT SENSING ELEMENT (A47WK).
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 5664 - RECEIVED LEFT ANTI-ICE DUCT WARNING MESSAGE ON CLIMBOUT FROM CVG. AIRCRAFT RETURNED TO CVG AND LANDED SAFELY. REMOVED AND REPLACED AFT BAY HEAT SENSING ELEMENT (A47WK).