What was found
FLIGHT 5964 - DURING CLIMBOUT FROM CVG RECEIVED ANTI-ICE DUCT WARNING. LEFT FUSELAGE RED ON ANTI-ICE PAGE. RAN QRH AND MESSAGE WENT OUT. A/C RETURNED BACK TO CVG AND LANDED SAFELY. REMOVED AND REPLACED LEFT MODULATION/SHUTOFF VALVE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 5964 - DURING CLIMBOUT FROM CVG RECEIVED ANTI-ICE DUCT WARNING. LEFT FUSELAGE RED ON ANTI-ICE PAGE. RAN QRH AND MESSAGE WENT OUT. A/C RETURNED BACK TO CVG AND LANDED SAFELY. REMOVED AND REPLACED LEFT MODULATION/SHUTOFF VALVE.