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This study evaluates the pavement condition of 3,300 meters of Adiwerna Highway II using the Pavement Condition Index (PCI) method based on the ASTM D6433-18 standard. The road is divided into 18 segments to facilitate analysis, with data obtained through visual surveys. The results show five main types of damage, dominated by patches (84%). PCI values ​​range from 38–86 with an average of 69 ("Fair" category), indicating the need for planned maintenance. The most critical segment is at STA 3+100–3+200 (PCI 38). The study recommends a more economically efficient preventive maintenance strategy, and suggests specific treatments according to the type of damage. This study supports the development of data-driven road asset management for infrastructure maintenance optimization.

Air compressor on board MV. Tms Glory has a vital role in supporting the performance of the main drive engine. This study evaluates the air compressor maintenance system through direct surveys, interviews with personnel, and document reviews. The results show that the implementation of preventive care has succeeded in reducing the risk of operational disruption. Challenges such as lack of resources for planned care were identified. Recommendations include the use of advanced condition monitoring technology and increased personnel training to support proactive care. This approach is expected to increase the operational availability of ships and reduce maintenance costs in the long term.  

This research investigates ship maintenance management within the context of vocational education in maritime engineering, focusing on the experiences of senior students during internships in port and shipping management industries. Utilising qualitative methods, including semi-structured interviews and focus group discussions, the study explores the practical application of theoretical knowledge in preventive, corrective, and proactive maintenance strategies. Seven participants from a shipping vocational school in Jakarta provided insights into methodologies, challenges, and educational outcomes in ship maintenance. Key findings highlight the effectiveness of preventive maintenance in enhancing operational reliability and reducing downtime, despite challenges such as resource constraints and operational disruptions. Recommendations include curriculum enhancements to integrate advanced training in predictive maintenance technologies and promote sustainable practices. The research underscores the importance of vocational education in preparing future maritime engineers for industry demands and advancing sustainable practices in maritime transportation.  

The instability of the economy and increasingly sharp competition in the industry requires a company to further enhance the efficiency of its operations. Treatment method that has been used is still corrective maintenance where engine maintenance activities undertaken to improve and enhance the condition of the engine so as to achieve the standards set at the level tersebut.Besarnya machine downtime which reaches up to 40% each month. Due to the growing number of downtime that occurs it will be increasingly detrimental to the productivity of a company. In this study used methods Realibility Centered Maintenance abbreviated to (RCM), which is to determine the optimal engine maintenance activities for the company. Reliability Centered Maintenance (RCM) is an approach that combines maintenance practices and strategies of preventive maintenance (PM) and corrective maintenance (cm) to maximize the life (life time) and the function of assets / systems / equipment at a minimal cost. Subjects studied machine is the machine Injection Molding, where the focus of engine components that will be examined as many as six parts: Barrel, Piston Injection, Toggle Clamping, Nozzle, Hydro Motor, Hopper. As for the category based on time (TD), the treatment provided in the form of component replacement schedule. Category finding damage (FF) recommended replacement components if the level of damage exceeds tolerable limits. Failure of components that include safety problem 13:33%, Outage System 80.00%, 6.67% Economic System. Of the total minimum downtime obtained Screw interval of 30 days, the crosshead link 11 days, Seal 13-day, 12-day screening. Downtime Screw impairment 37.21%, 41.15% crosshead link, Seal 24.56%, and 29.32% Screening

With the development of science and technology, the need for energy is getting bigger. influenced by an increase in population and human needs. One example of energy needed by all parties, including industries, is electrical energy. Electrical energy is an energy that cannot be separated from everyday life, where almost all equipment uses electrical energy both in industry and in development itself which is one of the factors that demand the supply of electrical energy. One of the most important equipment in the PLTU, namely the drive on the conveyor belt, is a 380 V electric motor. Electric motors are prone to being overloaded because they are used too often to reach the target, and also because these electric motors are often exposed to dust from coal which can cause the electric motor to accumulate dirt in the electric motor where the electric motor becomes obstructed and when it reaches letting it sit continuously can make the electric motor not optimal in operation and can be totally damaged.

Centa Brasindo Abadi (CBA) is a company operating in the agricultural sector. To maintain and increase productivity, maintenance of production machines is required. Preventive Maintenance (PM) is an approach used in maintaining equipment and machines to prevent unwanted damage or failure. A sachet filling machine is a machine for packaging products that will be distributed in sachet packaging according to the predetermined product weight. Preventive maintenance helps identify potential problems, saves on costly repairs, and keeps equipment in optimal operational condition. The aim of this research is to determine the implementation of preventive maintenance to maintain productivity in an effort to reduce downtime.