What was found
AIRCRAFT WAS GROUNDED: AFT PUSHBACK FLIGHT ATTENDANTS AND PASSENGERS REPORT THE PLASTIC SMELL IS GETTING WORST IN THE CABIN. DURING INSPECTION FOUND PC OUTLET UNIT INOPERATIVE. REMOVED AND REPLACED PC OUTLET UNITS AT SEATS 12D (AALA202508204260), 13C (AALA202508206697), 22E (AALA202508206800). PER AMM 23-81-04. OPERATIONAL CHECK GOOD, NO SMOKE ODOR FUMES NOTED.