As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER START, ON RECALL RECEIVED A LT PACK LIGHT, RAN THE V-LIST, LIGHT EXTINGUISHED. ACFT GROUNDED. PERFORMED A PACK/ZONE TEMP CONTROLLER BITE TEST IAW AMM 21-51-00-700-803. NO FAULTS INDICATED AND NO MAINTENANCE HISTORY ON THE LT PACK WITHIN THE PAST 10 DAYS.