As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT ILLUMINATES DURING RECALL, RESETS WITH MASTER CAUTION. ACFT GROUNDED. TROUBLESHOT LT ZONE CONTROLLER IAW AMM 21-51-00-700-803. FOUND NR 1 ACT FAULT. RESET TEMP CONTROLLER AND RETESTED. NO FURTHER FAULTS AND NO MAINTENANCE HISTORY ON THIS SYSTEM WITHIN THE PAST 30 DAYS.