As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONTROL CABIN ZONE TEMP LIGHT COMES ON WITH RECALL, EXTINGUISHED WITH MASTER CAUTION RESET. ACFT GROUNDED. ACCOMPLISHED A PACK, ZONE TEMP CONTROL BITE, CLEARED. CONTROL CABIN TRIM VALVE FAULT. TEST PASSED. GROUND VERIFICATION SUCCESSFUL.