Aircraft Maintenance Services Research Articles

Integration of balanced scorecard and analytical hierarchy process to measure the performance of supporting unit in aircraft maintenance service companies

Dynamic and challenging business environment in the aircraft maintenance services industry require company to survive and ensure business continuity. To realize effective performance, performance measurement is needed as a management system for managing and controlling performance. The purpose of this research is to measure the performance of supporting unit at PT. XYZ by using balanced scorecard framework that is integrated with AHP. The steps in this research includes identification strategy objective, identification key performance indicator (KPI), design and measure performance using integrated balanced scorecard and AHP. The method used in this study combines quantitative data with the Analytical Hierarchy Process (AHP) approach. The AHP method is used for KPI weighting. The design of KPI weights for each perspective in balanced scorecard are 42,3 % for the learning and growth, 33,5% for internal business process, 17,3% for financial, and 6,8% for the customer perspective. The results of supporting unit performance show the lowest score in the learning and growth perspective with average performance indicator, while in internal business process, financial and customer perspective have good performance indicator. The result of measuring total performance of four perspective are 74,5% which indicates that the performance of PT.XYZ’s BSC is in the good enough category.

A Business Intelligence System for the Aeronautical Sector

This article describes a company’s business intelligence system in the aeronautical sector that is specialized in the production of aerostructures and the supply of aircraft maintenance services. The goal of this system is to help the company’s managers make better decisions and improve all the business areas of the company, which operates in “Maintenance”, “Aircraft Painting”, “Manufacturing” and “Engineering” services. “Maintenance” services consist of “Engines”, “Components”, “Defense aviation” and “Civil aviation” maintenance. Here the indicator “I1-General Productivity”, for the “Maintenance” services is detailed. The aeronautical company felt the need to begin the process of digital transformation across all its areas and the business intelligence system that is being developed is a component of the company digital transformation. This digital transformation process is in line with the use of business intelligence techniques. The market has become more and more competitive in the aeronautical sector and this company wanted to stay at the forefront of technology and implement a business intelligence system to become increasingly a reference in its business branch. For this digital transformation, several systems were used, the Oracle database management system to manage company internal databases, Oracle’s SQL Developer tool and Microsoft’s Power BI tool.

PERENCANAAN MANAJEMEN PROYEK DALAM PERAWATAN APU GTCP131-9B PT. GARUDA INDONESIA

The air transportation industry in Indonesia is growing rapidly and is very competitive. Aircraft fleet maintenance is an important factor in supporting airlines to compete in the local and global industry. On the other hand, delays in the completion of fleet maintenance can result in delays in flight schedules and this is very detrimental to the airline and passengers. This is a challenge for business actors in the aircraft maintenance sector because of the risk of being penalized for delays that occur. Therefore, this study aims to reduce the risk of late fines faced by aircraft maintenance business actors. With project management, the company is expected to be able to produce effective and efficient maintenance activities. This is very much needed by the company in producing optimal output and has a great impact on airlines that use aircraft maintenance services. In this study, the evaluation of project management uses the Critical Path Method (CPM), Program Evaluation and Review Technique (PERT), Work Breakdown Structure (WBS) to evaluate the preparation of aircraft maintenance activities and the Crashing method if acceleration is needed in completing maintenance activities in accordance with agreed agreement. With the preparation of good project management, it is possible to estimate the time and cost needed to complete a project so as to minimize delays and losses in completion. The project management planning used in this project resulted in an accelerated completion of 3.5 days with an additional cost of $ 8,958.23.

A MACH AIRSPEED WARNING SYSTEM IN COCKPIT

This research examines the Mach Airspeed Warning System on aircraft at PT. Batam 
 Aero Technic as a hangar or aircraft maintenance service provider registered with the 
 Ministry of Transportation. The Mach airspeed warning system supports an aural 
 warning system to help turn on the aircraft when the aircraft is in a condition exceeding 
 or approaching the airspeed limit which will later enter the Mach speed. The research 
 method used is descriptive and qualitative. Beginning with the experience of any 
 consequences related to the Mach Airspeed Warning System, then presenting solutions to 
 the potential hazards carried out by the author so that these potential hazards can be 
 reduced. The results of the study found 4 causes that made errors in Mach Airspeed.

Supply Chain Risk Control Strategy for Aircraft Maintenance in the Era of the Covid-19 Pandemic

Aviation is an industry that has been severely impacted by the COVID-19 pandemic. Several number of risks arise due to the low demand for flights which results in a number of business risks, including obstacles that occur from the SCM side of the aircraft maintenance industry. This study aims to analyze risk control strategies in supply chain management, by offering updates in the evaluation of SCOR using the Supply Chain Operations Reference (SCOR) model version 12, House of Risk (HOR), and pareto diagram.The object of research is PT GMF Aero Asia, which is an aircraft maintenance service provider (MRO). This research is a qualitative-phenomenological type using primary and secondary data. Primary data was obtained from interviews with informants who represented managerial in the field of SCM at GMF Aero Asia, while secondary data was obtained from documentation studies by collecting documents related to the research. The data obtained is then processed according to the stages of risk identification, risk severity analysis, risk probability, and risk management. The results showed that there were 50 risk events, including 7 risk events from the SCM planning process (planning), 9 risk events from the source procurement process (source), 11 risk events from the production operation process (make), 12 events risk from the delivery process, 7 risk events from the product return process (return) and 5 risk events from the maintenance & compliance process (enable), as well as 30 risk triggers (risk agent). Other results state that there are 9 risk agents that will be prioritized for preventive action.

Risk Mitigation Strategy Based On Information Technology in Aircraft Maintenance Process (Case Study : PT MMF)

PT. Merpati Maintenance Facility is a company engaged in aircraft maintenance services. This company serves several types of aircraft maintenance such as Boeing and Airbus. In the process of aircraft maintenance at PT. Merpati Maintenance Facility Sidoarjo, to carry out maintenance in every job it must be in accordance with the Task Card the work made by PPC is based on the WO (Work Order), in the process of working on the task card, and it is often lost and creates data discrepancies, so PPC does not know the work that matches the task card been done or not. With the occurrence of these problems, it is necessary to measure the value of information technology using Technometrics methods to determine the value of TCC (Technology Contribution Coefficient) on each component of information system-based technology, as well as formulate risk mitigation strategies using the SWOT method. From the results of the study, the value of the company's TCC is 0.980. The results of the SWOT analysis position diagram for technoware, humanware, orgaware components in quadrant I and for infoware components in quadrant II. The results of the assessment of the contribution of this technology are associated with the strategic choice of aircraft maintenance services companies in the application of technology, which must always adjust to the speed of the latest technology. This adjustment effort is greatly assisted by the open availability of information. The purpose of the research is to determine the value of information system technology in the company. To provide a proposed mitigation strategy to correct weaknesses or deficiencies in the company.

Application of Virtual Reality Method in Aircraft Maintenance Service—Taking Dornier 228 as an Example

Flight safety and airlines operation have been at the center of research since aircraft were first invented, as even slight errors in aircraft maintenance may cause serious accidents. Thus, aircraft maintenance is critical to the aviation industry all the time. To prevent maintenance errors, it is important to train for aviation maintenance. Therefore, an aircraft maintenance virtual reality (AMVR) system was developed in this study. For a Dornier-228 aircraft, a walk-around visual inspection of its fuel system was designed and tested in a virtual environment. For the system, CATIA V5 and Unity 3D software were used for designing the 3D model of the aircraft and developing the visual environment, respectively. With the software, the visual environment of the aircraft hangar was created for the system. The developed system was tested by students to validate the effectiveness of using the AMVR system in training. The students acknowledged that the system was beneficial to their learning, which proved that the developed system is highly effective for training students to improve aircraft maintenance skills.

Perhitungan faktor utilitas baterai pesawat dengan menggunakan metode sistem dinamis untuk mengukur tingkat ketersediaan baterai

The role of the aircraft maintenance industry as an aircraft maintenance service which is expected to be able to maintain the survival of the aircraft itself. For example, PT GMF Aero Asia is one of the Strategic Business Units (SBU) owned by PT Garuda Indonesia which is specialized in aircraft maintenance, repair and overhaul services which include aircraft frames, engines, components and their support. In this study, a quantitative assessment of the availability and capability of maintenance facilities was carried out using a preventive maintenance method with a dynamic system model approach that describes the level of availability and maintenance capability of aircraft batteries. Calculations have been made with a computer program, POWERSIM, in actual conditions that in December 2020 the total number of batteries in maintenance was 102 batteries for Airbus types and 80 batteries for Airbus types. With the assumption that starting in 2021 there will be an increase in the number of aircraft by 1 (one) unit per month, then at the end of the study period until July 2021 the calculation of the utility factor will be as follows, the total utility factor for Boeing is still below 1, while for Airbus starting April 2021 the utility factor is above 1. So that the operator's ability to handle Airbus type battery maintenance is not sufficient. For this purpose, an alternative scenario needs to be created, namely scenario 1 by adding one operator per shift and scenario 2 by increasing the operator's workload in handling the number of batteries handled to as many as 6 battery units. The results of the calculation of the utility factor show that in both conditions the scenario gives a value below 1. The best choice in terms of simplicity in handling the number of operators, then the choice of condition scenario 2 is the best choice.

Perbaikan Proses Delivery Dokumen Maintenance C-Check Pesawat dengan Metode CCFE, FMEA, dan PICA (Studi Kasus di PT. GMF Aeroasia Tbk.)

PT. GMF Aeroasia, Tbk is a company engaged in aircraft maintenance services. The aircraft maintenance lead time is regulated according to the agreement set forth in the agreement in the form of a work order, when the maintenance process takes place there is almost always a delay when working on the aircraft, both in terms of physical work or delivery of documents. These problems are several forms of waste, where waste is any activity that does not provide added value. Therefore, the purpose of this study is to identify the type of waste and determine the factors that cause waste in the delivery process of aircraft c-check maintenance documents. The method used in this study used a fishbone chart, cause failure mode effect, failure mode and effects analysis and problem identification and corrective action. Fishbone chart and cause failure mode effect are used to find waste that causes delay in document delivery, then analyzed using failure mode and effects analysis, three causes of the highest delay were found, namely stamps on incomplete documents (RPN 16), waiting for customer approval (RPN 16) and material certificates not available (RPN 12). Corrective Action was prepared as a recommendation to improve the delivery process for aircraft c-check maintenance documents. By knowing the types of waste and the factors causing waste in the delivery process of aircraft c-check maintenance documents at PT. GMF Aeroasia Tbk is expected to reduce waste and fulfill customer satisfaction. Keywords: Lead Time, Waste, Delay Delivery of Documents, Cause Failure Mode Effect Method, Corrective Action

A scenario-based stochastic programming approach for aircraft expendable and rotable spare parts planning in MRO provider

PurposeThis paper aims to build a novel model and approach that assist an aircraft MRO procurement and overhaul management problems from the perspective of aircraft maintenance service provider, in order to ensure its smoothness maintenance activities implementation. The mathematical model utilizes the data related to warehouse inventory management, incoming customer service planning as well as risk forecast and control management at the decision-making stage, which facilitates to alleviate the negative impact of the uncertain maintenance demands on the MRO spare parts inventory management operations.Design/methodology/approachA stochastic model is proposed to formulate the problem to minimize the impact of uncertain maintenance demands, which provides flexible procurement and overhaul strategies. A Benders decomposition algorithm is proposed to solve large-scale problem instances given the structure of the mathematical model.FindingsCompared with the default branch-and-bound algorithm, the computational results suggest that the proposed Benders decomposition algorithm increases convergence speed.Research limitations/implicationsThe results among the same group of problem instances suggest the robustness of Benders decomposition in tackling instances with different number of stochastic scenarios involved.Practical implicationsExtending the proposed model and algorithm to a decision support system is possible, which utilizes the databases from enterprise's service planning and management information systems.Originality/valueA novel decision-making model for the integrated rotable and expendable MRO spare parts planning problem under uncertain environment is developed, which is formulated as a two-stage stochastic programming model.

Aircraft fault forecasting at maintenance service on the basis of historic data and aircraft parameters

Aircraft maintenance and repair organizations (MROs) have to be competitive and attractive for both existing and new customers. The aircraft ground time at MROs should be as short as possible and cost effective without reducing the quality of the work. Process optimization in MROs requires the continuous improvement of processes and the elimination of non-value-added activities during maintenance checks. There is, on the one hand, an obligation to follow the prescribed procedures and, on the other hand, pressure for time and cost reduction. The aircraft servicing process has been analysed according to a lean methodology. The optimization of logistics processes is recognized as the most promising method for reducing the maintenance service time and costs of spare parts. The probability of aircraft faults is calculated on the basis of historic data from previously completed service projects. Aircraft parameters, such as aircraft type, operator, aircraft age, flight hours, flight cycles, engine type and operationlocation, are taken into consideration in the fault forecasting. The fault probability is used as an indicator for defining a priority list for the accomplishment of jobs included in the aircraft maintenance service. The proposed methodology was validated and confirmed on four different projects. (Less)

Enhancing Aircraft Maintenance Services: A VSM Based Case Study

Clients expect a short lead-time from aircraft maintenance services. In order to minimize the lead time, it is vital to analyse service processes related to maintenance tasks and identify existing problems such as bottleneck tasks and wastes related to different tasks. The main purpose of the manuscript is to demonstrate the use of the VSM-based (value stream mapping) methodology together with other tools, which were used in aircraft maintenance processes in minimizing the lead-time of maintenance services and, subsequently, minimizing the costs of maintenance services. The manuscript illustrates the use of VSM in enhancing the process cycle efficiency (PCE) of maintenance services provided in an aircraft maintenance services providing firm (AMSPF).

Ranking of aircraft maintenance organization based on human factor performance

Aircraft maintenance organisation is a complex socio-technical setup, where human factors influence the quality of aircraft maintenance service. Maintenance service quality is assessed based on the commitment of management and its ability to provide suitable facility, tools, spares and manpower supported with comfortable environment and maintenance procedures. Assessment of the service quality of the aircraft maintenance organisation is a complex process. Airlines, regulators, insurance companies and other agencies need decision support system, to assess the performance of a maintenance organisation. This paper provides criteria and scientific approach for assessing the maintenance organisation; it presents a methodology of applying Analytical Hierarchy Process to prioritise the key functions and to rank the maintenance organisations under study. The study has established that maintenance service quality in airline is directly correlated to its fleet size.

Manutenção Aeronáutica no Brasil: distribuição geográfica e técnica

As atividades de manutenção aeronáutica formam uma parte essencial da aeronavegabilidade continuada, tendo como objetivo, tanto na área civil quanto na militar, prover a total condição de serviço para as aeronaves. O crescimento do transporte aéreo no Brasil tem exigido uma indústria de serviços de manutenção aeronáutica capaz de apoiar tal processo expansivo, sem prejuízo para as condições de segurança de voo. Alguns dos trabalhos encontrados na revisão da literatura exploram a manutenção aeronáutica sob perspectivas que buscam melhorar a eficiência técnica do setor. Pelo exposto, o principal objetivo deste artigo é ampliar o conhecimento sobre o setor de manutenção aeronáutica no Brasil, explorando as informações providas pela ANAC, com o intuito de construir um panorama que revele a distribuição geográfica e técnica dos nichos de capacitação. Para tanto, inicia com uma exposição dos conceitos básicos da atividade de manutenção em geral e aeronáutica em particular. A seguir, é examinado o contexto regulatório brasileiro para a atividade de manutenção aeronáutica, com ênfase nos domínios de certificação. Ao final, examina-se a distribuição geográfica das empresas de manutenção aeronáutica no país, identificando a distribuição das empresas considerando-se os vários tipos de certificação técnica.

Research on Computer Aided Aircraft Maintenance Training and Evaluation System Based on User-Centered Design

Based on user centered design method, Object Oriented technology and unified modeling language, the design process which is specified for computer aided aircraft maintenance training and evaluation system was proposed. According to this process, the user role model of aircraft maintenance training and evaluation system was established; the role-oriented multi-user access control method was studied; the construction technology of three-dimensional aircraft maintenance model resource database based on homebred 3D platform, the fuzzy evaluation techniques of students and training coursed were researched. This paper supplies a new way for aircraft maintenance training, which is meaningful for the informationization of aircraft maintenance service, to improve of the training efficiency and training effect of aircraft maintenance personnel and to promote domestic CAD technology development.

Expert system for aircraft maintenance services industry

PurposeThe purpose of this study is to propose an approach to facilitate the allocation of labor resources, which is a complex and fuzzy problem in nature existing in the aircraft maintenance services industry. On the other hand, the shortage of experienced and qualified engineers makes the labor allocation process even more difficult.Design/methodology/approachVarious approaches can be used to solve this personnel‐planning problem: mathematical programming is the common modeling approach; however, it is found to be inappropriate where there are many intangible factors. The other approach is analytical hierarchy process (AHP), a decision support method which can facilitate labor allocation. In this paper, the authors propose a decision support system with fuzzy AHP in weighing the importance of different intangible criteria; an extent analysis approach is used to overcome the uncertainty of subjective perception.FindingsIn the allocation of labor resources, the personnel plans have to consider the aviation authority regulations and safety laws, qualification of the employees and customers' requirements, as well as other intangible variables. The analysis results have shown that the fuzzy AHP approach‐based system provides better resource management and higher productivity for the aircraft industry.Originality/valueSince limited studies have been found to be concentrated on manpower allocation problems in the aircraft maintenance industry, this study can provide important findings and references to the academicians and practitioners in the related areas.

An aircraft service scheduling model using genetic algorithms

PurposeIn this paper, the authors propose the application of an intelligent engine to develop a set of computational schedules for the maintenance of vehicles to cover all scheduled flights. The aim of the paper is to maximize the utilization of ground support vehicles and enhance the logistics of aircraft maintenance activities.Design/methodology/approachA mathematical model is formulated and the solution is obtained using genetic algorithms (GA). Simulation is used to verify the method using an Excel GA generator. The model is illustrated with a numerical case study, and the experience of this project is summarized.FindingsThe results indicate that this approach provides an effective and efficient schedule for deploying the maintenance equipment resources of the company, China Aircraft Service Limited.Originality/valueThe proposed model using the GA generator provides an effective and efficient schedule for the aircraft maintenance services industry.