As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WING ANTI-ICE EICAS MSG DISPLAYED. WING ANTI-ICE VALVE LIGHT REMAINED ILLUM WITH SWITCH OFF. POSITION 2. (1=L, 2=R). FRM CODE: 30-11-04--. SAMC TEXT: DUE TO RELIABILITY ISSUE. REPLACE THE RT VLV PER APPROVED MM. PERFORMED OPS CHECK AS PER AMM 30-11-00 ALL CHECKED NORMAL AS PER TOMC REQUEST REMOVED AND REPLACED RT WING ANTI ICE VALVE AS PER AMM 30-11-00, OPS AND LEAK CHECKS NORMAL.