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 ILLUMINATES ON RECALL. LIGHT GOES OUT WHEN MSTC RESET. BACKUP CONTROLLER OPERATES NORMAL. ACFT GROUNDED. BOTH CONTROLLERS LOGGED FLIGHT DECK TRIM VALVE. FAULT RESET REF TASK 21-61-00-700-808-001. R & R CONTROL CABIN TRIM VALVE. OPS CK & LEAK CK GOOD.