As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
'WAI VALVE RIGHT' EICAS ADVISORY MESSAGE DISPLAYED. RIGHT WING ANTI-ICE VALVE DISAGREES WITH COMMAND. WAI RIGHT EICAS VALVE IS STUCK IN ON POS. REPLACED VALVE IAW MM. VALVE FAILED WITH MESSAGE 30222. ORIGINAL VALVE WAS BOUND SOLID, WILL NOT MOVE, THE BA VALVE MOVES OK DURING TEST AND MESSAGE CLEARED BUT RETURN AT END OF TEST WITH MT MESSAGE 30222. REPLACED RT WAI VALVE PER MM, OPS CHECKED OKAY. NO EXISTING FAULTS NOTED.