I In the production process of Louver Door wooden doors at PT. Arus Jati Indo, the percentage of defects that occur is very high, production is more focused on the shaping process on the moulder machine, with the production of 110 products for 3 months with a defect rate for louver door products of 31.81% with a company tolerance of 10%. The purpose of this study is to provide improvements to the problem of product defects that occur in the camphor wood Louverdoor production process. The problem seen in the observation process is that during the production process there are several things that can cause unwanted effects such as the presence of untidy pieces of wood, cracks in the wood, the size of the wood is not suitable, the wood is not glued well and the wood is not smooth. This research was conducted using the Multi Attribute Failure Mode Analysis (MAFMA) and Fault Tree Analysis (FTA) methods. Multi Attribute Failure Mode Analysis (MAFMA) is an integration between the Failure Method Effect Analysis (FMEA) method and the Analytical Hierarchy Process (AHP) method. In the final result of MAFMA, there are two causes of failure with the largest value, namely the error in choosing the blade and not doing machine maintenance. In the FTA diagram the cause of the first failure will be repaired based on the basic event, namely the head of production rarely supervises with a probability of 0.1555, the second cause of failure, repairs are carried out based on the basic event there is no special equipment storage rack with a probability of 0.222. The last stage is the proposed improvement stage which will try to be implemented by building equipment storage racks and proposals for improving the performance of the head of production.