As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT ILLUMINATED WITH MASTER CAUTION RECALL. EXTINGUISHED WHEN RESET IS PRESSED. GROUNDED - YES. LEFT HAND PACK TEMP CONTROL SYSTEM INOP. BITE CHECKED LT PACK CONTROLLER FOUND TCV FAULT. REMOVED AND REPLACED LT PACK TEMP CONTROL VALVE PER AMM 21-51-10. OPS AND LEAK CHECKS GOOD.