As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNABLE TO COOL COCKPIT. FULL COLD SUPPLIES 80 DEGREE AIR WITH HOT AIR SWITCH OFF. STILL 80 DEGREES. FOUND LEFT PACK BELLOWS HAS LARGE RUPTURE BETWEEN AIR PACK 1 OUTLET AND MIXER UNIT. ALSO FOUND DUCTING PARTIALLY CLOGGED WITH LINT. REPAIRED BELLOWS AND REMOVED LINT. REPLACED NR 1 PACK ANTI ICE VLV, ZONE TEMP CONTROLLER, COCKPIT CABIN TEMP SENSOR, LT RECIRC FILTER, 24HK LT MIXER UNIT TEMPERATURE SENSOR AS PRECAUTIONARY.