As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4526 - DURING CRUISE FROM MGM-ATL, A SMALL AMOUNT OF SMOKE WAS NOTICED IN THE CABIN WHEN THE RIGHT ACM WAS SELECTED. THE AIRCRAFT LANDED SAFELY IN ATL. MAINTENANCE REMOVED AND REPLACED THE RIGHT COALESCER BAG, AND CLEANED THE COALESCER BAG COVER. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE (M)