As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L-ENG ANT-ICE EICAS MESSAGE DISPLAYED ALONG WITH VALVE LIGHT ON L ENGINE ANTI ICE SWITCH DISPLAYED DURING DESCENT WHEN SELECTED ON AND STAYED ON FOR REMAINDER OF FLIGHT. REMOVED AND REPLACED L ENGINE ANTI-ICE VALVE M/M 30-21-03-4 , PERFORMED ENGINE RUN PER JRH OPS CHECKED NORMAL.