As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING RECALL GOT THE AIR COND AND ZONE TEMP LIGHT ON OVERHEAD. BITE CHECK OF PACK ZONE TEMP CONTROLLER FAULTED FLT DECK TRIM VLV. REPLACED FLT DECK ZONE TRIM VALVE. OPERATIONAL AND LEAK CHECKS OK. BITE CHECK OF PACK ZONE TEMP CONTROLLER OK.