As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER START, WHEN PRESSING MASTER CAUTION RECALL FWD CABIN ZONE TEMP ILLUMINATED. ZONE TEMP LIGHT EXTINGUISH WITH MASTER CAUTION WHEN VERIFYING PACK CONTROL, SUPPLY DUCT TEMP DID NOT MOVE. ACFT GROUNDED. ACCOMPLISHED A PACK TEMP CONTROL BITE IAW FIM 21-62 TASK 801. ACCOMPLISHED A NR 2 PACT TEMP CONTROL RESET IAW FIM 21-62 TASK 834. NO HISTORY ON LAST 30 DAYS, DEFECT CLEARED.