As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON MASTER CAUTION RECALL PER AFTER START CHECKLIST ZONE TEMP AMBER CAUTION LIGHT ILLUMINATED ON OVERHEAD PANEL/CLEARS WITH MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED FIM 21-61 TASK 861. TEMP CONTROLLER BITE TEST INDICATED FLT DECK TRIM VALVE FAIL. REMOVED AND REPLACED FLT DECK TRIM VALVE PER AMM 21-61-21. OPS CK, LEAK CK AND BITE TEST GOOD.