As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON RECALL HAD A ZONE TEMP LIGHT. IT WAS ABLE TO RESET. GROUNDED - YES. FLIGHT DECK PRIMARY TEMP CONTROL SYSTEM INOP. NR 2 PACK/ZONE TEMP CONTROLLER LOGGED FLT DECK TRIM VALVE FAULT. RESET FAULT. NR 2 PACK/ZONE TEMP CONTROLLER PASSES ALL BITE TESTS. REF B737-800 AMM TASK 21-61-00-700-806-002.