What was found
DFW - FLT 1806 - AFTER TAKEOFF, CABIN FILLED WITH SMOKE. LANDED DFW WITHOUT INCIDENT. REPLACED AUXILIARY POWER UNIT. SYSTEM GROUND CHECK NORMAL OPERATION. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DFW - FLT 1806 - AFTER TAKEOFF, CABIN FILLED WITH SMOKE. LANDED DFW WITHOUT INCIDENT. REPLACED AUXILIARY POWER UNIT. SYSTEM GROUND CHECK NORMAL OPERATION. (M)