As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, A BURNING ODOR OCCURRED IN THE CABIN AND THE RT PACK BECAME INOPERATIVE. THE AIRCRAFT LANDED SAFELY. MAINTENANCE REMOVED AND REPLACED THE ACM INCLUDING THE CLAMPS ON THE TWO BELLOWS OF THE HEAT EXCHANGER. OPERATIONAL AND LEAK CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)