As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED SMOKE IN CABIN WITH ODOR OF BURNING RUBBER. MAINTENANCE INSPECTED AND FOUND PACK 1 TO BE OVERHEATED AND INOPERATIVE. PACK 2 OPERATES NORMALLY, DEFERRED PACK 1. MAINTENANCE REPLACED NR 1 ACM, OPS CHECK GOOD, CLEARS DEFERRAL.