As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK ILLUMINATES WITH MASTER CAUTION RECALL. EXTINGUISHES WITH MASTER CAUTION RESET. ACFT GROUNDED. TROUBLESHOT IAW FIM 21-62, TASK 830, LEFT PACK TEMP CONTROL BITE SHOWED THIS PACK TCV. PERFORMED PZTC RESET, FAULT CLEARED. NO FURTHER MAINTENANCE ACTION REQUIRED.