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 WITH RECALL AND EXTINGUISHED WITH MASTER CAUTION. ACFT GROUNDED. FWD CABIN ZONE TRIM VALVE FAULTS DURING CONTROLLER BITE TEST. REPLACED FWD CABIN ZONE TRIM VALVE IAW AMM 21-61-21-000-801 AND 21-61-21-400-801, OPS CHECKED GOOD. GROUND FUNCTIONAL CHECKED GOOD IAW AMM 21-61-00-700-802-002.