As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BURNING SMELL COMING FORM GASPERS. PAX NOTICED SMELL WHICH QUICKLY DISSAPATED. AFTER ARRIVING AT GATE GASPER FAN CB WAS FOUND OPEN. ALSO, PAX REPORT SMOKE WAS VISIBLE AROUND AIR EYELETS AT ROWS 16, 17, 18 SMOKE HAD A PLASTIC SMELL. SMOKE STOPPED AND DISIPATED QUICKLY. NO FURTHER PROBLEMS AFTER T/O. REPLACED GASPER FAN.