What was found
A/C TOOK A DELAY FOR A REPORT OF ELECTRICAL SMELL AND SMOKE IN THE AFT CABIN AREA AROUND ROW 20. PHX TECH SUPPORT LOWERED CEILING AND PSU'S FROM ROW 18 AFT, INSPECTED ALL AREAS ON PSU, CEILING, GALLEY'S AND LAV'S. LOWERED CEILING AND PSU'S ROW 18 AFT, CHECKED ALL PSU'S, CEILING AFT GALLEY AND LAV LIGHTING AND ELECTRICAL COMPONENTS AND NO DEFECTS NOTED. RAN RT PAX ON MAX HOT, FOUND HOT SMELL. TROUBLESHOT TO DIRTY SEPARATOR BAG. REMOVED AND REPLACED PER CARD S2C21004, RAN PAC OPS CK GOOD.