The Paiton Steam Power Plant (PLTU) is one of the main sources of electrical energy in East Java, which plays a vital role in maintaining a sustainable electricity supply. The reliability of generator units is a key element in maintaining stable energy distribution. However, the high frequency of sudden generator failures poses serious challenges, such as increased downtime and increased maintenance costs. To address these challenges, this study aims to design a generator maintenance prediction model based on the Naive Bayes algorithm with a predictive maintenance approach. This study uses historical maintenance data and key sensor parameters such as temperature, oil pressure, and vibration as input. The data is analyzed through several stages, namely data preprocessing, selection of relevant features, and labeling generator conditions into three categories: Normal, Warning, and Critical. The Naive Bayes model is trained to classify the data probabilistically to generate predictions of future generator conditions. Model evaluation using accuracy metrics and a confusion matrix shows that the model successfully achieved an accuracy rate of 89% and was able to provide early warnings of potential failures up to 3 days before failure occurs. The implementation of this system is expected to support the shift in maintenance strategies from reactive and scheduled systems to data-driven predictive systems. Implementing failure predictions allows the technical team at the Paiton PLTU to conduct planned maintenance, avoid sudden disruptions, and extend equipment lifespan. Thus, this model has the potential to reduce operational downtime by up to 25%, while providing significant savings in operational and logistics costs. This research also shows that integrating machine learning technology into energy facility management can improve the efficiency and resilience of the overall electric power system.

This community service activity is aimed at helping women's farmer groups in Mulyorejo Village, Malang, in developing automatic watering technology based on renewable energy for water spinach cultivation. The system developed uses solar panels as an energy source, which drives the automatic watering machine. This technology is expected to increase irrigation efficiency, reduce dependence on human labor, and increase the productivity of water spinach plants. The results of the activity show that the use of this automatic watering machine can reduce operational costs and improve plant quality.

Before carrying out sailing activities as a navigator on a ship, the thing you must prepare is, prepare everything related to the cruise plan. This aims to minimize the occurrence of accidents on ships when sailing. Making passage plans is usually made using paper maps, but this is a long and inefficient method to do. So, with current technological advances, several systems and tools have been created to make it easier to create passage plans, namely digital maps or better known as Electronic Charts. Electronic Chart Display and Information Systems (ECDIS) is a tool whose function and system can provide information about navigation and whose use is to back up existing equipment, so that it can be accepted and considered to meet the requirements determined by the 1974 SOLAS convention & its amendments. Electronic Chart Display and Information Systems (ECDIS) is an integration of various navigation tools, namely Global Positioning System (GPS), Radio Direction and Ranging (RADAR), Automatic Identification System (AIS), Echo Sounder and Gyro Compass. Starting from this awareness that there are many advantages in operating ECDIS on ships, we should realize that using ECDIS to make shipping plans (Passage Planning) can help lighten the burden on officers on board ships in designing a good and safe shipping route. The impact of making a passage plan that is inaccurate/not rechecked on the nautical chart that is generated as input to ECDIS and causes accidents when the ship is navigating.

This final assignment compared the results of durations in the CCPM method and the Critical Path Method (CPM) by conducting a case study of ship repairs at Galangan Kapal Madura Ltd. Initial project scheduling employed the traditional method of a Gantt chart, which was then broken down in more detail and complete relationships among activities into CPM form. The results were then compared with the duration in CCPM scheduling by eliminating multitasking and safety time for each activity as well as providing a buffer in progress. The CPM method lasted for 30 days at a cost of IDR 246,600,000.00, while the CCPM method lasted for 20 days at a cost of IDR 215,600,000.00. In conclusion, the CCPM method was the most effective.

. In the shipbuilding industry, the repair process is a series of jobs that require a relatively short time. Delays in repairs can occur due to weak management and also caused by less than optimal empowerment of human resources. This study aims to identify the risks found in four divisions, namely the Production Division, Warehouse Division, Finance Division and Purchasing Division. The study found 31 risk events. Determining the value of each risk is carried out using the Failure Mode and Effect Analysis method. There were 13 risks that had the highest Risk Priority Number, namely the length of approval for requests for goods (RPN = 522.88), delays in payment processes by customers (RPN = 504.64), requests for additional work from the owner (RPN = 477.128), fluctuations in the number of manpower (RPN = 454.08), Changes in material use related to the availability of materials in the warehouse (RPN = 411.768), Changes in material calculations related to design (RPN = 389.017), Length of decision making by the owner (RPN = 388.36), Long material delivery process (RPN = 388.36), Insufficient stock material (RPN = 357,588), Writing the amount on the Request for Goods Bill is not detailed (RPN = 357.71), Lack of availability of stock material (RPN = 349,524), Making and submitting late payment requests (RPN = 316.8), Placement of materials that are less efficient (RPN = 296.8) Risk mitigation is carried out using the Fault Tree Analysis method to find the main cause / basic event of each risk. And the mitigation step that needs to be done is by making changes to the warehouse layout. If the layout design of the warehouse is changed to be more efficient it will speed up the material retrieval process which has an impact on the ship repair process time.
 

In this case it refers to the purpose of the content in this final project, namely by compiling a schedule for the Implementation of KM.Mutiara Ferindo 5 Ship Maintenance during the docking process at the PT.PAL Indonesia shipyard. Making a schedule includes what components are repaired when the ship is in a condition shipyard, make a ship maintenance management schedule that has been carried out in the shipyard. The data used in this thesis are data from PT.Antosim Lampung Pelayaran Surabaya and the researchers themselves. The type of data used in this research is primary data. will be related to the problem being studied and the results of the questionnaire distributed to several employees related to this research. In carrying out repairs there is a work list that shows how many items of work work must be done. So this work list has been approved to be carried out in the ship repair process. KM ship repair work. Mutiara Ferindo 5 which carries out planned repairs both at the shipyard and when the ship anchors at sea carries out maintenance technically and economically. Repair work on RO-RO ships that carry out maintenance on a scale that has been determined by the office and ship crew who are authorized to help carry out ship repairs. Repair work on the ship KM. Mutiara Ferindo 5 is well planned in terms of safety equipment and also component equipment that plays an important role in the smooth operation of the ship (maintenance of the entire engine room, deck, safety equipment and maintenance of the inside and outside of the ship). Implementing an economical system of estimating the remaining funds after maintenance at the shipyard.

In a shipbuilding industry, fast and efficient time is needed in carrying out construction projects and ship repairs. This is because it has been mutually agreed between the two parties, both the owner of the ship (owner), and the shipyard regarding the time to work on the project. By racing on the processing time, the level of productivity is an important point that must be considered by the shipyard. There are many factors that can affect the level of productivity of a shipyard. One of the factors, among others, is the determination of the number of man hours (man hours). In a ship building or repair project, the allocation of the number of man hours is very important, if the number of man hours (man hours) is not correct it will cause delays and decrease in productivity levels. The purpose of this study was to analyze the effect of man hours on the level of productivity in the KMP repair project. Cakalang and KMP. Gili Iyang by conducting a correlation test of the Product Moment method with the help of SPSS (Statistical Program for Social Science) v2.3 for windows software, with the independent variable (X), namely the number of man hours (man hours) and the dependent variable (Y), namely the level of productivity. And then a significant correlation value is generated between the number of man hours (man hours) and the level of shipyard productivity. The results of this study are the significance values obtained between the X and Y variables in the KMP repair project. Cakalang is 0.037 and at KMP. Gili Iyang is 0.026 which means that there is a significant correlation between the variable man hours and productivity with a very strong relationship category in KMP. Cakalang and strong links to KMP. Gili Iyang.

This study aims to analyze the role and function of the Archipelago Brondong Fishing Port for improving the maritime economy in Lamongan Regency. Among them are the factors that affect fishermen's income, the role of PPN Brondong in the maritime sector, as well as the potential and realization of the maritime economy of PPN Brondong in Lamongan Regency. The analytical method used is descriptive method through a qualitative approach, in its application using primary and secondary data from the research results that have been analyzed. The author uses a triangulation technique to be able to validate data and draw conclusions about the role and function of the Archipelago Brondong Fishing Port for improving the maritime economy in Lamongan Regency. The results of the study prove that the role and function of the Archipelago Brondong Fishing Port have an important influence on the potential for adding added value to the maritime economy in Lamongan Regency.

Work accidents that occur on ships often occur in various cases, one of which is a work accident that occurs in an enclosed space. This is often experienced by a crew member who is unable to understand the proper methods and procedures for working in an enclosed space. Against this background, the researcher conducted a risk assessment of personal safety when working in an enclosed space to find out the causes, impacts and controls of the crew members' lack of understanding and knowledge of personal safety when working in an enclosed space. In this descriptive study using the Job Safety Analysis (JSA) method and the Bowtie method, the researchers obtained very high/extreme (E) scores in carrying out work in closed spaces, namely the ship's crew inhaled poisoned air/gas while checking in the cofferdam tank where these results obtained an likelihood value of 66% and a severity value of 71%. By holding routine drills regarding the application of safety principles in an enclosed space in more detail to all Ship's Crew and at the end of the drill closing displays a training video that displays shows about various accidents that occurred in an enclosed space and the causes of these events are reviewed in detail. So with a more detailed drill on the application of safety principles regarding enclosed space material to all Ship's Crew, it is hoped that it can minimize the occurrence of work accidents in an enclosed space.

The purpose of this study is to analyze the safety operational process in fiberglass shipbuilding, identify the types of risk causes that hinder the construction of fiberglass boats and propose recommended actions needed to overcome the risks in CV ERA FIBERBOAT by using theoretical research methods. Identification of risks in the process of building new ships, namely employees, materials, work equipment, payment of construction costs, working drawings have revisions. Determining the risk rating of the new ship building process: very high; inappropriate equipment, height; late payment / paying, medium; working drawings have revisions, low; materials arrive late, very low; employees procrastinate. Mitigating risks in the process of building new ships: employees delay work with mitigation, namely the director of the company provides the opportunity for employees to rest so that employees do not get sick, materials arriving late are mitigated by means of shipyard companies providing an easy-to-find address point so that the sender of materials does not having difficulty finding the address of the shipyard, working drawings have revisions that can be mitigated by means the company must always make an existence to the customer in every work process so that there is no miscommunication