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. RESET WITH THE MASTER CAUTION. ACFT GROUNDED. BITE CHECKED THE RT ZONE TEMP CONTROLLER IAW FIM 21-62 TASK 801. FAULTED FLT DECK TRIM VALVE. RAN VERIFY TEST THREE TIMES IAW FIM 21-62 TASK 832, FAULT CLEARED WITH NO FURTHER DEFECTS NOTED.