As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DECENT, THE LT PACK LIGHT ILLUMINATED ON RECALL. IT EXTINGUISHED WITH THE MASTER CAUTION PUSHED. QRH WAS FOLLOWED. ACFT GROUNDED. PERFORMED LT PACK ZONE TEMP CONTROL BITE, REF AMM 21-51-00. FAULT FOUND FOR LT TEMPERATURE CONTROL VALVE. R & R LT TEMPERATURE CONTROL VALVE, REF AMM 21-51-10. OPS CHECK GOOD.