As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING RECALL, LANDING CHECKLIST, AFT CABINE ZONE TEMP LIGHT ILLUMINATED AND EXTINGUISHED WITH MASTER CAUTION RESET. ACFT GROUNDED. NR 2 TEMP CONTROLLER LOGGED "CONTROLLER FAULT". REPLACED NR 2 TEMP CONTROLLER. SYSTEM BITES NORMAL IAW MM 21-62-20. GROUND VERIFICATION SUCCESSFUL.