As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCENT SMOKE AND BURNING ODOR WERE PRESENT IN COCKPIT AND CABIN. AFTER COMPLETING CHECKLIST SMOKE AND ODOR SUBSIDED. (SEEMED ELECTRICAL ). AFTER PAX DISEMBARKED ACFT, CABIN STARTED TO FILL WITH HEAVY SMOKE AGAIN. ACFT WAS SHUTDOWN AND EVACUATED. APU WAS STARTED ON TAXI IN. R & R NR 1 DEFECTIVE FWD ACM WITH A REPAIRED ACM. ALSO, R & R SOCKS WITH NEW SOCKS WITH NEW O-RINGS. OPS & LEAK CHECKED GOOD. REF MM 21-51-00 & 12-10-01.