What was found
SMOKE IN CABIN. RETURNED TO DEPARTURE, MECHANIC REMOVED WATER SEPARATOR AND CLEANED FILTER ASSY, SYS OPS CHECK GOOD IAW MM 21-505.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
SMOKE IN CABIN. RETURNED TO DEPARTURE, MECHANIC REMOVED WATER SEPARATOR AND CLEANED FILTER ASSY, SYS OPS CHECK GOOD IAW MM 21-505.