As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER DEPARTURE WE ENCOUNTERED ICING CONDITIONS, SO WE SELECTED ANTI ICE. WHEN WING ANTI ICE SELECTED, WE RECEIVED AIR SYS 3 OFF FOLLOWED BY WING ANTI ICE R DISAGREE, WE THEN FOLLOWED QRH PROCEDURES AND SELECTED WING A/I OFF. ALERT EXTINGUISHED BUT WING A/I ON SD PAGE REMAINED PRESENT AND WITH AMBER VALVE POSITION OFF. REMOVED AND REPLACED R WING ANTI-ICE SHUTOFF VALVE TEST OK. ACFT OK FOR SERVICE.