As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING RECALL MASTER CAUTION AIR CONDITIONING LIGHT ILLUMINATES AND CONTROLLER CAB ZONE TEMP LIGHT ILLUMINATES. DURING RESET, LIGHTS EXTINGUISH. ACFT GROUNDED. FFR NR 2 TEMP CONTROLLER SHOWS FLT DECK TRIM VALVE FAULT ON PREVIOUS FLIGHT. NO HISTORY - 60 DAYS. RESET FAULT. FAULT DID NOT RETURN. BITE TEST NR 2 TEMP CONTROLLER GOOD. GROUND VERIFICATION GOOD, REF FIM 2-62/T842.