As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4199 - DURING FINAL APPROACH INTO ATL, SMOKE OCCURRED IN THE CABIN. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT LANDED SAFELY IN ATL. MAINTENANCE CHECKED THE ENVIRONMENTAL CONTROL SYSTEM BY UTILIZING ALL BLEED SOURCES FOR THIRTY MINUTES. NO SMOKE OR ABNORMAL ODOR OCCURRED. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)