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 ON TAXI OUT. LIGHT EXTINGUISHED WITH RESET. ACFT GROUNDED. ACCOMPLISHED THE LT AND RT PZTC BITE WITH NO FAULTS NOTED IAW AMM 21-61-00. ACCOMPLISHED AN EVALUATION IAW FIM 21-62 / 842, CONTROL CABIN ZONE TEMP LIGHT REMAINS EXTINGUISHED, FAULT IS INTERMITTENT WITH NO HISTORY LAST 30 DAYS.