As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE AIRCRAFT PERFORMED AN UNSCHEDULED LANDING AT HERMOSILLO (HMO) DUE TO LEFT ICE PROTECT TEMP HIGHT LIGHT TURNED ON AND USTB LEGEND IN RADAR COME ON SEVERAL TIMES. THE LEFT PNEUMATIC SYSTEM THERMOSTAT AND ANTICIPATOR WERE REPLACED IAW MM 36-10-06 AND TRANSCEIVER WX RADAR WAS REPLACED IAW 34-41-04, TESTED CORRECT.