As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUME EVENT ON DESCENT AT 12,000 AS ENGINES WENT TO IDLE -PERFORMED TSM 05-50-00-810-831 ISOLATION PROCEDUTRE POINTED TO PACK 1 TSM 49-00-81-810-874 PERFOMED NO FAULTS OR ISSUES NOTED IN THE APU ECS PACK BURN PERFORMED IAW AMM 21-00-00-615-002-A NO DEFECTS NOTED DURING OR AFTER PACK BURN A/C GOOD FOR CONT SERVICE