As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON RECALL, FWD CABIN ZONE TEMP ILLUMINATED, EXTINGUISHED WITH MASTER CAUTION RESET. ACFT GROUNDED. ACCOMPLISHED THE LT & RT CONTROLLER BITE IAW AMM 21-61-00. FOUND THE NR 2 CONTROLLER LOGGED FWD ZONE. CLEANED THE FWD AND AFT FILTERS. GROUND RAN PACK FOR ONE HOUR. NO FAULTS LOGGED.