What was found
IN-FLIGHT, NOTED ELECTRICAL/RUBBER ODOR IN AFT CABIN AREA. NO VISIBLE SMOKE. NO EMERGENCY DECLARED. AIRCRAFT RETURNED TO BUR AND MADE AN UNEVENTFUL LANDING. INSPECTED ALL FLUORESCENT LIGHTING, SIDEWALL LIGHTS, COFFEMAKERS, LAVATORIES, HEATERS, FLIGHT RECORDER COMPT, CARGO COMPTS, PAX LIGHTS AND PSU'S, E & E COMPT, RAN A/C GASPER FANS, NO EVIDENCE OF SMOKE OR SMELL.