ABSTRACT:- Overall Equipment Effectiveness (OEE) is a method of measuring the use of equipment. OEE is known as one of the Total Productive Maintenance (TPM) program applications.The ability to clearly identify the root of the problem and its causes so as to make the improvement effort focused is the main factor. This method is applied thoroughly by many companies in the world. for example the engine stops suddenly, declining machine production speed,the duration of setup and adjusment time, when the machine operates but does not produce products with the specified work standards.During the period January 2018 – December 2018 the value of Overall Equipment Effectiveness was obtained, still below the world class or below the ideal word.This is what underlies PT. XYZ to make improvements in its production activities.To overcome these problems in an effort to increase production efficiency is done by Total Productive Maintenance using the Overall Equipment Effectiveness (OEE) method as a tool used to measure and determine the performance of machines / equipment.After making the process of improvement and improvement, the Overall Equipment Effectiveness value increased above 85%, in M169 it was 87.1% and in M269 it was 92.8%.This research was conducted to get a picture of the suitability of the factors that determine the need for implementing Total Productive Maintenance with company conditionsand see which of the six big losses is the dominant factor affecting the decline in ship / fleet effectiveness. Thus the writing of this research will provide a proposal to improve the effectiveness of the ship / fleet in an effort to increase production efficiency in the company through the application of Total Productive Maintenance.

Keywords:- TPM, OEE, Six Big Losses