https://jurnal.ftkunsurya.com/index.php/jtk/issue/feedJurnal Teknologi Kedirgantaraan2026-02-02T00:00:00+00:00Aprilia Sakti Kaprilia.sakti.05@gmail.comOpen Journal Systems<div id="content" class=""> <div id="journalDescription"> <ul> <li> <h3 data-start="226" data-end="243">Description</h3> <p data-start="245" data-end="650"><strong data-start="245" data-end="320">Jurnal Teknologi Kedirgantaraan (JTK) – Journal of Aerospace Technology</strong> is a peer-reviewed academic journal that publishes original research articles and analytical studies in the field of aerospace engineering. The journal is managed and published by the Aeronautical Engineering Study Program, Faculty of Aerospace and Industrial Engineering, Universitas Dirgantara Marsekal Suryadarma, Indonesia.</p> <p data-start="652" data-end="907">JTK welcomes submissions from scholars, researchers, and practitioners worldwide. All manuscripts undergo a rigorous peer-review process conducted by experts prior to acceptance. Authors are fully responsible for the content of their published articles.</p> <p data-start="909" data-end="963">The journal’s scope includes, but is not limited to:</p> <ul data-start="964" data-end="1197"> <li data-start="964" data-end="1004"> <p data-start="966" data-end="1004">Aircraft propulsion and aerodynamics</p> </li> <li data-start="1005" data-end="1036"> <p data-start="1007" data-end="1036">Avionics and flight systems</p> </li> <li data-start="1037" data-end="1075"> <p data-start="1039" data-end="1075">Aerospace structures and materials</p> </li> <li data-start="1076" data-end="1115"> <p data-start="1078" data-end="1115">Aircraft maintenance and operations</p> </li> <li data-start="1116" data-end="1197"> <p data-start="1118" data-end="1197">Applied sciences and related interdisciplinary fields in aerospace technology</p> </li> </ul> <p data-start="1199" data-end="1387">The primary aim of JTK is to disseminate state-of-the-art research in aerospace science and technology, and to encourage scientific productivity in both academic and industrial contexts.</p> <p data-start="1389" data-end="1556"><strong data-start="1389" data-end="1407">Accreditation:</strong> Jurnal Teknologi Kedirgantaraan (JTK) is accredited <em data-start="1460" data-end="1469">Sinta 5</em> by the Ministry of Education, Research, and Technology of the Republic of Indonesia.</p> <h3 data-start="1563" data-end="1588">Journal Information</h3> <ul data-start="1590" data-end="2672"> <li data-start="1590" data-end="1631"> <p data-start="1592" data-end="1631"><strong data-start="1592" data-end="1619">Country of Publication:</strong> Indonesia</p> </li> <li data-start="1632" data-end="1782"> <p data-start="1634" data-end="1782"><strong data-start="1634" data-end="1648">Publisher:</strong> Aeronautical Engineering Study Program, Faculty of Aerospace and Industrial Engineering, Universitas Dirgantara Marsekal Suryadarma</p> </li> <li data-start="1783" data-end="1813"> <p data-start="1785" data-end="1813"><strong data-start="1785" data-end="1796">Format:</strong> Print & Online</p> </li> <li data-start="1814" data-end="1863"> <p data-start="1816" data-end="1863"><strong data-start="1816" data-end="1825">ISSN:</strong> p-ISSN 2528-2778 | e-ISSN 2684-9704</p> </li> <li data-start="1864" data-end="1896"> <p data-start="1866" data-end="1896"><strong data-start="1866" data-end="1881">DOI Prefix:</strong> 10.35894/jtk</p> </li> <li data-start="1897" data-end="1988"> <p data-start="1899" data-end="1988"><strong data-start="1899" data-end="1917">Accreditation:</strong> Sinta 5 (Ministry of Education, Research, and Technology, Indonesia)</p> </li> <li data-start="1989" data-end="2038"> <p data-start="1991" data-end="2038"><strong data-start="1991" data-end="2005">Frequency:</strong> Biannual (February and August)</p> </li> <li data-start="2039" data-end="2066"> <p data-start="2041" data-end="2066"><strong data-start="2041" data-end="2060">Advance Access:</strong> Yes</p> </li> <li data-start="2067" data-end="2338"> <p data-start="2069" data-end="2108"><strong data-start="2069" data-end="2106">Article Processing Charges (APC):</strong></p> <ul data-start="2111" data-end="2338"> <li data-start="2111" data-end="2134"> <p data-start="2113" data-end="2134">Free for submission</p> </li> <li data-start="2137" data-end="2244"> <p data-start="2139" data-end="2244"><strong data-start="2139" data-end="2163">Regular publication:</strong> IDR 250,000 (for Indonesian authors); free of charge for international authors</p> </li> <li data-start="2247" data-end="2338"> <p data-start="2249" data-end="2338"><strong data-start="2249" data-end="2276">Fast-track publication:</strong> IDR 500,000 (with expedited review and publication process)</p> </li> </ul> </li> <li data-start="2339" data-end="2390"> <p data-start="2341" data-end="2390"><strong data-start="2341" data-end="2361">Type of Journal:</strong> Academic/Scholarly Journal</p> </li> <li data-start="2391" data-end="2446"> <p data-start="2393" data-end="2446"><strong data-start="2393" data-end="2416">Open Access Policy:</strong> Yes, under CC BY-SA License</p> </li> <li data-start="2447" data-end="2482"> <p data-start="2449" data-end="2482"><strong data-start="2449" data-end="2476">Indexing & Abstracting:</strong> Yes</p> </li> <li data-start="2483" data-end="2554"> <p data-start="2485" data-end="2554"><strong data-start="2485" data-end="2508">Peer Review Policy:</strong> Double-blind; standard review time ~2 weeks</p> </li> <li data-start="2555" data-end="2672"> <p data-start="2557" data-end="2571"><strong data-start="2557" data-end="2569">Contact:</strong></p> <ul data-start="2574" data-end="2672"> <li data-start="2574" data-end="2604"> <p data-start="2576" data-end="2604">+62 857-7904-2477 (Jayadi)</p> </li> <li data-start="2607" data-end="2637"> <p data-start="2609" data-end="2637">+62 812-1343-9271(Riskha)</p> </li> <li data-start="2640" data-end="2672"> <p data-start="2642" data-end="2672">Email: <a class="decorated-link cursor-pointer" rel="noopener" data-start="2649" data-end="2670">jtkftdi@unsurya.ac.id</a></p> </li> </ul> </li> </ul> </li> </ul> </div> </div>https://jurnal.ftkunsurya.com/index.php/jtk/article/view/258Instilling Civic Skills in Students of Aviation Engineering Study Program at Universitas Dirgantara Marsekal Suryadarma Through Project-Based Learning in Civic Education Course2025-07-09T07:16:11+00:00Ardison Asri Asriardison@unsurya.ac.idArio Wendraariowendra@unsurya.ac.idAria Caesar Kusuma AtmajaAriacaesar@unsurya.ac.id<p>This study aims to describe project-based learning in the Citizenship Education module and its implementation for students of the Aviation Engineering Programme at Unsurya, as an effort to instil civic skills. The research employed a descriptive qualitative method, with data gathered through classroom observation and literature study concerning project-based learning in the Citizenship Education module. The findings indicate that the implementation of project-based learning in the Citizenship Education module by the Aviation Engineering students has been quite successful. This is evidenced by the outcomes of the group projects: Group One produced a campaign titled “Anti-Corruption Education”, and Group Two created a campaign entitled “Stop Violence on Campus”. The success of these projects represents a meaningful step in instilling civic skills, aiming to enhance communication abilities, develop teamwork across diverse backgrounds, raise awareness of the importance of a strong safety culture and high integrity in the aviation industry, sharpen analytical thinking, and prepare students to become competent professionals who contribute positively to society and the aviation sector.</p>2025-09-01T00:00:00+00:00Copyright (c) 2026 Ardison Asri, S.H., M.H. Asri, Ario Wendra, Aria Caesar Kusuma Atmajahttps://jurnal.ftkunsurya.com/index.php/jtk/article/view/263Enter metadata Development of an AI-Based Script for The DJI Tello Edu Drone Using the ChatGPT O1 and Copilot Platforms2025-06-30T02:55:56+00:00Eko Purnamaekopurnama@sttd.ac.idEdi Sofyanedisofyan@sttkd.ac.idDwi WidyantoDwiw@sttkd.ac.id<p>The rapid advancement of drone technology, particularly in its integration with artificial intelligence (AI), has had a significant impact on various sectors, one of which is the field of aircraft inspection and maintenance. This study aims to develop an AI-based script using the ChatGPT O1 and Microsoft Copilot platforms to control the DJI Tello EDU drone in automatically detecting cracks on aircraft bodies. The research was conducted through several stages, including collecting visual data via drone flights, processing and training the model using machine learning, developing the script with AI assistance, simulating on MATLAB Simulink, and finally implementing and testing directly on the physical drone. The results of the study indicate that ChatGPT O1 is capable of generating scripts that are more responsive, comprehensive, and easier to understand compared to Copilot, especially in interpreting natural language prompts. The generated scripts proved effective in both simulations and real-world flight tests, although there were limitations in the drone's sensors that affected the accuracy of altitude and distance measurements. The conclusion of this research is that AI plays a significant role in simplifying drone programming processes and enhancing work efficiency. This study contributes to the development of AI-based autonomous drone technology and opens up opportunities for broader and more efficient applications in other infrastructure inspection fields.</p>2025-09-08T00:00:00+00:00Copyright (c) 2025 Eko Purnama, Edi Sofyan, Dwi Widyantohttps://jurnal.ftkunsurya.com/index.php/jtk/article/view/298Optimization of Public Area Use to Increase Income at Yogyakarta International Airport2025-07-21T12:22:59+00:00Nadia Shifa Azzahranadiasyifa36@gmail.comAgoes Soebagioagoesoebagio@ppic.ac.idLina RosmayantiLinarosmayanti@gmail.com<p><em>This research aims to optimize the utilization of the landside area at Yogyakarta International Airport as a commercial space, to increase non-aeronautical revenue by organizing events. This research employs a qualitative approach with descriptive methods, utilizing data collection techniques that include field observations, interviews, and documentation, which are validated through source triangulation. The results of the analysis show that the location of Tugu Malioboro, which is the land area of Yogyakarta International Airport, has great potential to be developed as an interactive and productive zone, but its utilization is still limited due to rent constraints and a lack of collaborative marketing strategies. Through the Value Proposition Canvas approach, it was found that organizing events with the support of MSMEs, local governments, and sponsors was able to create added value for service users and local businesses, while strengthening the airport's image as a center of economic and cultural activities. This strategy contributes to increasing non-aeronautical revenue and strengthening the airport's socio-economic functions.</em></p>2025-09-17T00:00:00+00:00Copyright (c) 2025 Nadia Shifa Azzahra, Agoes Soebagio, Lina Rosmayantihttps://jurnal.ftkunsurya.com/index.php/jtk/article/view/311Analysis of Equipment Storage Area Facility Provision to Create Safety Flow for Ground Support Equipment (GSE) at Sultan Aji Muhammad Sulaiman Sepinggan Balikpapan International Airport2025-07-22T06:03:13+00:00Thufail Rizqi Nur Hilalthufailrizq@gmail.comElfi Amirelfiamir@gmail.comDian Anggraini Purwaningtyasdian@gmail.com<p>This research analyzes the provision of Equipment Storage Area (ESA) facilities to create a safe flow for Ground Support Equipment (GSE) at Sultan Aji Muhammad Sulaiman Sepinggan Balikpapan International Airport, given the increase in flight operations and the need for optimal ground handling. The main problems identified are the absence of clear markings in Storage B to indicate storage boundaries and the irregular layout of GSE. Using a qualitative descriptive method involving observation, interviews, and documentation in the airport's equipment storage area, the results indicate that Storage B does not meet operational safety standards due to the absence of markings, leading to unclear boundaries and disorganized GSE layout, which could hinder service delivery and reduce the safety and efficiency of GSE operations. As an improvement effort, it is strongly recommended to create clear storage markings in Storage B in accordance with the Director General of Civil Aviation Decision No. PR 21 of 2023, as well as to design a systematic GSE layout. This implementation aims to organize parking positions, improve land efficiency, prevent overlapping access routes, and ensure safer and more efficient ESA management in accordance with applicable regulations.</p>2025-10-01T00:00:00+00:00Copyright (c) 2025 Thufail Rizqi Nur Hilal, Elfi Amir, Dian Anggraini Purwaningtyashttps://jurnal.ftkunsurya.com/index.php/jtk/article/view/296Review of Standardization of Parking Area Markings at Aji Pangeran Tumenggung Pranoto Airport, Samarinda2025-07-21T02:55:21+00:00Sultan Aqilla Ahmad Napitupulusultan@gmail.comHemi Pamuraharjohemi@gmail.comDini Waginidini@gmail.com<p class="53IsiAbstractCxSpFirst">The rapid growth of flight operations at Aji Pangeran Tumenggung Pranoto Airport in Samarinda has raised concerns regarding the standardization and effectiveness of parking stand markings on the apron, which are crucial for ensuring safety and efficiency. This study aims to evaluate and redesign the standardization of parking stand markings to address these concerns. Field findings during On-the-Job Training (OJT) revealed several issues, including inconsistencies in Stopline Marking placements, discrepancies between parking stand data and the Aeronautical Information Publication (AIP), as well as the deterioration of markings due to weather exposure and apron vehicle movement. This research adopts a qualitative descriptive approach with triangulation of observation, interviews, and document review to ensure the validity of findings. Results suggest the need for corrective measures such as repainting faded markings, repositioning Stopline Markings for better visibility and accuracy, and updating parking stand coordinates in the AIP. Implementing these improvements is expected to enhance apron operational safety and align with Regulation PR 21 of 2023 and internationally recognized aviation standards.</p>2025-10-04T00:00:00+00:00Copyright (c) 2025 Sultan Aqilla Ahmad Napitupulu, Hemi Pamuraharjo, Dini Waginihttps://jurnal.ftkunsurya.com/index.php/jtk/article/view/313Analysis of Water and Sea Rescue Knowledge of ARFF Personnel in Emergency Preparedness Efforts at Juanda International Airport2025-07-22T15:18:23+00:00Michael mayalidmichael27mayalid@gmail.comEndang Sugih ArtiEndang@gmail.comNawang Kalbuananawang@gmail.com<p><em>Juanda International Airport operates within a 5-mile (±8 km) radius from its reference point, which includes surrounding water areas. As part of its operational responsibility, the airport must ensure the safety and security of passengers, particularly in emergency situations occurring in or near water. The Airport Rescue and Fire Fighting (ARFF) unit is tasked with conducting rescue operations during such emergencies, making it essential for its personnel to possess proper qualifications, knowledge, and practical skills in water and sea rescue procedures.This study aims to assess the level of understanding among ARFF personnel regarding water and sea rescue and to identify the efforts that have been made by the ARFF unit in responding to water-based emergencies around the airport. The research was conducted using observation, interviews, and literature review. Findings indicate that the overall knowledge and preparedness of ARFF personnel regarding water rescue operations remain relatively low.By using the Gap Analysis method, the study found a noticeable difference between the current capabilities of personnel and the standards expected by relevant aviation safety regulations. Therefore, it is recommended that the ARFF unit design and implement structured, ongoing training, incorporating both theoretical and practical sessions, to enhance personnel competence and readiness for water-related emergencies.</em></p>2025-10-17T00:00:00+00:00Copyright (c) 2025 Michael mayalid, Endang Sugih Arti, Nawang Kalbuanahttps://jurnal.ftkunsurya.com/index.php/jtk/article/view/315The Influence of the SIOPSKOM System on the Performance of Airport Operation Personnel Landside, Terminal, and Service Improvement at Lombok International Airport2025-07-23T02:00:25+00:00<p>This study was conducted at Zainuddin Abdul Madjid International Airport in Lombok to explore the impact of the Operations and Commercial Information System (SIOPSKOM) on the performance of staff within the Airport Operation Landside, Terminal, and Service Improvement (AOLTSI) unit. Through a quantitative approach supported by surveys and field observations, the study reveals a positive correlation between the implementation of SIOPSKOM and improvements in employee performance. Respondents indicated that the system facilitates timely access to information, enhances job efficiency, and supports daily operational tasks more effectively. The findings suggest that SIOPSKOM plays a crucial role in streamlining workflows and promoting a more data-driven work environment. Most staff members acknowledged the system’s relevance in accelerating decision-making and improving service delivery to airport users. These results highlight the importance of maintaining and upgrading digital infrastructure in airport operations. To maximize its potential, the study recommends continuous training for personnel and regular system evaluations to ensure responsiveness to operational needs. The integration of such systems must also be aligned with organizational goals to support a culture of performance accountability and service excellence in the broader context of airport management.</p>2025-11-28T00:00:00+00:00Copyright (c) 2025 Putri Calista Nursyaf, Ubaedillah, Rini Sadiatmihttps://jurnal.ftkunsurya.com/index.php/jtk/article/view/307An Assessment of Digital Terrain Model Provision for The Requirements of Flight Procedure Design2025-07-22T05:43:09+00:00Dicky Anandadikiananda84@gmail.comLina RosmayantiLinarosmayanti@gmail.comMochamad Faisal Muzakifaisalmuzaki@gmail.com<p>The provision of Digital Terrain Model (DTM) data plays a critical role in the safe and efficient design of flight procedures within AirNav Indonesia. This study evaluates the workflow and identifies technical gaps in the current DTM data provision process at the Aeronautical Information Cartography Unit. Qualitative research was conducted from January to July 2025, involving semi-structured interviews with six key personnel, direct observation, and document analysis. Results show that all DTM data provision activities depended on a single individual, with no formal standard operating procedures available. This led to recurring delays and data inconsistencies, particularly when the person in charge was absent. To address these issues, a draft standardized technical guideline was developed; however, it has not yet been formally implemented or tested. The presence of this guideline is expected to improve workflow efficiency, ensure data consistency, facilitate effective knowledge transfer, and ultimately contribute to increased operational safety and regulatory compliance in Indonesian aviation</p>2026-02-06T00:00:00+00:00Copyright (c) 2025 Dicky Ananda, Lina Rosmayanti, Mochamad Faisal Muzakihttps://jurnal.ftkunsurya.com/index.php/jtk/article/view/310Development of an AppSheet-Based Prohibited Items Reconciliation Reporting System at HB-SCP to Enhance Security at Kalimarau Airport2025-07-22T05:33:17+00:00Zidan Mushajidzidanmushajid@gmail.comNawang Kalbuananawang@gmail.comIrwan Faizalirwanfz@gmail.com<p class="53IsiAbstract"><span lang="EN-ID">Ensuring security in airports is essential, especially in overseeing passenger luggage. However, at Kalimarau Airport, the current manual method of reporting seized items increases the risk of inaccuracies and processing delays. This research focuses on designing a reconciliation reporting system for confiscated items based on the AppSheet application connected to an online database. The methodology includes needs analysis, digital reporting system design, and field testing. The application supports real-time recording, data visualization, and report automation. Testing results indicate improved efficiency and accuracy in recording, with a system feasibility rating above 90% based on expert evaluation and user trials. In conclusion, this reporting system is deemed suitable as a digital solution for managing confiscated items at airports, enhancing transparency, speed, and data security.</span></p>2026-02-06T00:00:00+00:00Copyright (c) 2026 Zidan Mushajid; Nawang Kalbuana, Irwan Faizalhttps://jurnal.ftkunsurya.com/index.php/jtk/article/view/309Bird Strike Risk Assessment to Support Flight Safety: A Case Study at Kalimarau Airport2025-07-22T05:52:33+00:00FRIENDY GIVENUS MARPAUNGfriendygivenus@gmail.comDwi AfriyantodwiL@gmail.comAlwazir Abdusshomad alwazira@gmail.com<p>Bird strikes pose a serious threat to aviation safety, especially at airports surrounded by natural habitats that attract birds. This study aims to identify bird species with the highest risk to aviation safety at Kalimarau Airport, Berau, and provide mitigation recommendations based on risk analysis results. The method used is a descriptive quantitative approach with risk assessment techniques using the Sowden and MOORA methods. The results of the study show that the species Egretta garzetta (little egret) has the highest score in both assessment methods, thus categorized as the species with the highest bird strike risk. This is due to the birds' gregarious behavior, low-flying habits, and the airport's surrounding habitat, which provides natural food sources and shelter. The conclusions of this study support the hypothesis that there are bird species with high bird strike risk at Kalimarau Airport. Comprehensive habitat management and the use of early detection technology are necessary as strategic measures to reduce the potential for bird strike incidents.</p>2026-02-06T00:00:00+00:00Copyright (c) 2026 FRIENDY GIVENUS MARPAUNG; Dwi Afriyanto, Alwazir Abdusshomad https://jurnal.ftkunsurya.com/index.php/jtk/article/view/316An Utilization Of Vacant Areas in Railink Buildings to Support Non Aeronautical Revenue at Kualanamu International Airport2025-07-23T01:57:30+00:00<p>Kualanamu International Airport still relies on aeronautical revenue of 80%, while non-aeronautical contributions are only 20%. This condition requires diversification of revenue sources, especially after the COVID-19 pandemic. This research aims to analyze strategies for utilizing vacant areas in Railink buildings to increase non-aeronautical revenue. The method used is a descriptive qualitative approach through observation, interviews with commercial unit managers and documentation. Data analysis was conducted using the value proposition canvas business model. The results showed that the vacant area is feasible to develop as a Commercial Lifestyle Hub that includes a children’s playground and event spaces. The potential contribution from this development is estimated to increase non-aeronautical revenue by 35-40% in five years. Key strategies include digital promotion, local collaboration and direct marketing. This optimization of non-productive assets not only strengthens the airport's financial stability, but also supports local economic growth and long-term competitiveness.</p>2026-02-07T00:00:00+00:00Copyright (c) 2026 Nabilahya supardi; Agoes Soebagio, Rini Sadiatmihttps://jurnal.ftkunsurya.com/index.php/jtk/article/view/362A Conceptual Model of Aircraft Rescue and Fire Fighting (ARFF) Training Effectiveness for Enhancing National Aviation Safety2025-10-30T07:14:21+00:00Alwazir Abdusshomadalwazir@ppicurug.ac.idBenny Kurniantobenny.kurnianto@ppicurug.ac.idNawang Kalbuananawang.kalbuana@ppicurug.ac.id<p><em>Aviation safety serves as the fundamental pillar of the global aviation industry, with Aircraft Rescue and Fire Fighting (ARFF) personnel playing a critical role in managing emergency situations. Although the International Civil Aviation Organization (ICAO) has established global training standards, their implementation in Indonesia continues to face various challenges related to advancing aircraft technologies and increasing operational complexity. This study aims to formulate a holistic conceptual model to enhance the effectiveness of ARFF training programs in Indonesia by integrating international best practices and contextualizing them within national realities. Through a systematic literature review of scholarly publications, regulatory frameworks, and technical reports from 2015–2025, four key components of training effectiveness were identified: (1) Training Input, encompassing competency standards, psychologically based participant selection, and the availability of modern facilities; (2) Training Process, emphasizing the application of Competency-Based Training and Assessment (CBTA), simulation technology, and cross-functional exercises; (3) Training Output, assessing improvements in technical competence, stress management, and team coordination; and (4) Long-Term Outcomes, oriented toward enhanced emergency preparedness and reduced incident response time. The proposed model is expected to strengthen ARFF human resource capacity while reinforcing the national aviation safety ecosystem in a sustainable manner</em></p>2026-02-07T00:00:00+00:00Copyright (c) 2026 Alwazir Abdusshomad, Benny Kurnianto, Nawang Kalbuanahttps://jurnal.ftkunsurya.com/index.php/jtk/article/view/347Reliability Analysis of Autoflight Servo System Failures: A Case Study of the Airbus A330-300 at International Airline X2026-01-08T02:53:51+00:00Akhmad Satriyo231013004@students.unsurya.ac.idMufti Arifinmarifin@unsurya.ac.idM. Hadi Widantohadi@unsurya.ac.id<p><em>The autoflight servo system plays a critical role in maintaining aircraft stability during automated flight operations, where sustained manual control by the pilot is impractical. Due to its integration with multiple aircraft systems, servo failures may propagate and affect overall flight control performance. This study investigates the failure characteristics, root causes, and mitigation strategies of the autoflight servo system in the Airbus A330-300 operated by International Airline X. A descriptive quantitative approach was adopted using a case study methodology. Primary data were obtained from maintenance records, technical documentation, and interviews with relevant personnel, while secondary data included historical failure reports and repair procedures. Risk Priority Number and fishbone diagram was employed to identify dominant failure mechanisms. The results indicate that failures were primarily electrical (27.91%), followed by mechanical (20.93%), hydraulic (17.44%), and human error (6.98%). Electrical failures represent the highest risk category. In response to servo failure, the system automatically transitions to Secondary Flight Control Computer (SEC) or alternate law mode, allowing pilot control via sidestick input. Preventive measures include periodic connector cleaning (1–2 years) and actuator seal monitoring through hydraulic oil particle analysis to detect early wear.</em></p> <p> </p>2026-02-25T00:00:00+00:00Copyright (c) 2026 Akhmad Satriyo; Mufti Arifin, M. Hadi Widanto