As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE IN CABIN, AFTER LANDING AIR SUPPLY TEMP ROSE FROM 81 DEGREES TO 155 DEGREES IN LESS THAN ONE MINUTE. SMOKE MAY HAVE BEEN COMING FROM AIR CONDITIONING VENTS. 30 MINUTES AFTER SHUTDOWN ACM TEMP WAS 155 DEGREES. TROUBLESHOT SYS, FOUND ACM SEIZED UP. REMOVED AND REPLACED COOLING TURBINE WITH A SERVICEABLE UNIT IAW MM 21-51-00 ACM. OPS CK GOOD.