What was found
SMOKE IN CABIN IN FLIGHT ON APPROUCH RAN BOTH PACKS, USING BOTH APU AND ALSO ENGINE BLEED AIR AND ANTI ICE SYSTEM WITH NO SMOKE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
SMOKE IN CABIN IN FLIGHT ON APPROUCH RAN BOTH PACKS, USING BOTH APU AND ALSO ENGINE BLEED AIR AND ANTI ICE SYSTEM WITH NO SMOKE.