As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD CAB "ZONE TEMP" LIGHT ILLUMINATES ON RECALL. GROUNDED - YES. THE SYSTEM TESTED GOOD BUT DUE TO HISTORY REMOVED AND REPLACED THE FWD CABIN ZONE TEMPERATURE TRIM MODULATION VALVE IAW AMM 21-61-21-000-801 AND 21-61-21-400-801. GROUND FUNCTIONAL CHECK FOR TIHS ETOPS SENSITIVE SYSTEM IS GOOD IAW AMM 21-61-00-700-801.