As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CABIN ZONE TEMP LIGHT ILLUMINATED DURING RECALL. ACFT GROUNDED. PERFORMED CABIN TEMP CONTROL BIT CHECK ON NR 2 CONTROLLER. CURRENT FAULT SHOWS BACKUP ZONE, AFT ZONE, SENSOR. ON VERIFY GOT TCV FAULT ON NR 2. RESET NR 2 CONTROLLER. RAN BIT CHECK NO FAULTS NOTED.