As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD CABIN ZONE TEMP LIGHT ILLUMINATED ON RECALL, EXT ON MAST CAUTION RESET. ACFT GROUNDED. VERIFIED ZONE TRIM FAULT ON THE NR 2 ZONE TEMP CONTROLLER. REPLACED THE FORWARD CABIN ZONE TRIM MODULATING VALVE IAW AMM'S 21-61-21-000-801 AND 21-61-21-400-801. VALVE OP CHECKED GOOD.