As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONTROL CABIN ZONE TEMP LIGHT ILLUMINATED ON RECALL. ACFT GROUNDED. INITIAL INSPECTION FOUND THE NR 2 TEMP CONTROLLER SHOWING FLT DECK TRIM VALVE FAULTED. PERFORMED AMM 21-51-00-700-803, PACK/ZONE TEMPERATURE CONTROLLER BITE TEST. PASSED. RESET FAULT AND RAN TEST THREE MORE TIMES, NO DEFECTS NOTED. NO CONTROL CABIN ZONE TEMP LIGHT ON RECALL.