As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE SMOKE COMING OUT OF VENT AT SEAT 7A. SMOKE FOUND TO BE CONDENSATION/VAPOR FROM PACKS SYSTEM. INSPECTED WATER SPRAY NOZZLES. NO DEFECTS NOTED. UPON FURTHER INSPECTION FOUND RECIRC FAN DUCT AT 7A UNSECURED. RESECURED RECIRC FAN DUCT. OPS CHECK SAT. NO LEAKS/VAPOR DETECTED.