What was found
OIL ODOR IN FLIGHT DECK AREA. SMOKE AND ODOR IN MAIN CABIN WITH LOWER RECIRCULATING FAN OFF. *SUPPLEMENTAL DATA UPDATE* MAINTENANCE CONFIRMED THE SMELL WAS COMING FROM APU. APU WAS REPLACED AND THE SHOP DISASSEMBLED THE LOAD COMPRESSOR MODULE TO FIND THE ROOT CAUSE OF THE PROBLEM. THE SHOP FOUND IMPROPER REPAIR OF THE LOAD COMPRESSOR REAR BEARING CARRIER. THE BUFFERED AIR PASSAGE WAS BLOCKED TO THE REAR LOAD COMPRESSOR KNIFE EDGES BY FLAME SPRAY.