As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3945 THE CREW RECEIVED A WING ANTI ICE FAIL MESSAGE ON EICAS IN ICING CONDITIONS. THE CREW FOLLOWED AOM 1 PROCEDURE AND THE MESSAGE REMAINED. THE CREW DECLARED AN EMERGENCY AND CONTINUED THE FLIGHT. THE AIRCRAFT LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE RIGHT WING ANTI ICE VALVE IAW M/M 30-11-01 AND PERFORMED OPERATIONAL CHECK AND LEAK CHECK IAW M/M 30-00-00. NO FAULTS NOTED. THE AIRCRAFT WAS RETURNED TO SERVICE.