As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN CABIN PACK IS IN OPERATION SMOKE ENTERS THE CABIN TEMPERATURE IS UNCONTROLLABLE IN BOTH AUTOMATIC AND MANUAL MODES (SUPPLY TEMP WAS 247 DEG) DISCOVERED AFTER LANDING. FOUND FWD PAC TURBINE SEIZED. REPLACED FWD AIR CYCLE MACHINE IAW CE750 MM 21-51-00. OPERATIONAL AND LEAK CHECK GOOD