As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON MASTER RECALL WITH AFTER START CHECKLIST CONT CAB ZONE TEMP ILLUMUNATED. EXTINGUISHED WITH MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED BITE CHECK OF NR 2 PACK CONTROLLER FAILS FLT DECK TRIM VALVE. REPLACED CONTROL COMPARTMENT TRIM AIR MODULATING VALVE IAW AMM 21-61-21. PERFORMED ZONE TEMP CONTROL BITE TEST IAW AMM 21-61-00. OPS CHECK GOOD.