As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
3991 MSP LSE (8039) DEPLANED DUE TO SMOKE IN CABIN. FLIGHT HAD NOT YET BLOCKED OUT. PASSENGERS DEPLANED NORMALLY. THERE WERE NO REQUESTS FOR MEDICAL ATTENTION. MSP MX COMPLETED SMOKE/FUMES IN CABIN/FLT DECK REV A WORK SCOPE PER CHECKLIST PROVIDED. FOUND APU HAS INTERNAL FUEL LEAK. REF TL-213276-2011.