As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT ILLUMINATED DURING AFTER START ON THE MASTER RECALL. THE PACK LIGHT EXTINGUSHED WITH MASTER RESET. ACFT GROUNDED. PERFORMED BITE ON LEFT PACK CONTROLLER FOUND THE EXIT FAULT LIGHT ON, PERFORMED FIM 21-62 TASK 853, STEPS A-E, AND NO FURTHER DEFECTS FOUND.