As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE ANTI ICE VALVE DOES NOT OPEN WHEN SELECTED, ON GROUND. REPLACED ENGINE ANTI-ICE VALVE PER MM. ACCOMPLISHED ENGINE RUN PER JRH AND ACCOMPLISHED MAT TEST OF ENGINE ANTI-ICE VALVE. TEST PASSED AND STATUS MESSAGE CLEARED, INDICATION ON EICAS NORMAL.