As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENG HPSOV EICAS MESSAGE REMAINED ON INTERMITTENT AFTER PROCEDURE WAS DONE A/C DIVERTED TO DEN BECAUSE OF ICEING CONDITIONS AT ORIGINAL DESTINATION IN DEN MTX DEFERRED LH ENGINE HPSOV IAW MEL ABX 36-11-2-2 FOR DEPARTURE AND RETURNED AC TO SERVICE.