As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - CREW REPORTED SMOKE ODOR IN AFT CABIN AFTER TAKEOFF. FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. ACCOMPLISHED AUXILIARY POWER UNIT WASH AND PACK BURN. NO ODORS NOTED. SYSTEM GROUND CHECKED NORMAL OPERATION.