||With the development of the air transport industry and the introduction of low-cost carriers, the number of airlines has being growing rapidly. Based on the safety concerns and compliance of regulations, aircraft have to perform heavy maintenance periodically. When aircraft was taken out from services, it cost a lot to operators (airlines). If operator plans to do heavy maintenance by himself, the costs of investments of plant facilities, tools, and equipment are significant. Therefore, for some airlines and for the low-cost carriers, they outsources the heavy maintenance activities to other airlines’ maintenance departments or MROs (Maintenance, Repair, Overhaul organizations). The competition in the aircraft maintenance market is tough. To shorten the duration of heavy maintenance for improving the aircraft turnaround time will be the most important advantage in the market. This study is to analyze the operation practices of the maintenance department of the case company, including organizational structure, resources, and operational processes. In order to improve the efficiency, this paper compared two different types of organizational structures. One is a function-oriented organization, and the other is a project-oriented one. After analyzing, the results demonstrate that the project-oriented is more efficient than function-oriented structure. It reduces the useless waiting man-hours. As for the operational processes, the case company has being trying to introduce the critical chain project management (CCPM) concept to improve the progress of heavy maintenance project and release the suffers of uncertainty. Finally, taking an example to verify the analysis results and proposed methods by this study. Under the operating environment of a case company, it can reduce man-hours by around 10% and achieve the goal of improving efficiency.|
||1. Airbus. (2017), Airbus A330 Maintenance Planning Document. Airbus.|
2. Ayeni, P. (2015). Enhancing competitive advantage through successful lean realisation within the Aviation Maintenance Repair and Overhaul (MRO) industry. School of Aerospace, Transport and Manufacturing, Cranfield University.
3. Boeing. (2017), 747-400 Maintenance Planning Document, D621U400, Boeing.
4. Capgemini. (2009), Maintenance Repair and Overhaul (MRO), Optimized MRO…Becoming A Reality, Capgemini Consulting.
5. Chang, H. M., & Abdullah, K. O. R. A. (2014). The Operation Management Model of Aircraft Maintenance, Repair and Overhaul (MRO) Business. International Journal of Trends in Economics Management & Technology (IJTEMT), 3(3).
6. Dijkstra, M. C., Kroon, L. G., Salomon, M., Van Nunen, J. A., & Van Wassenhove, L. N. (1994). Planning The Size And Organization of KLM′s Aircraft Maintenance Personnel. Interfaces, 24(6), 47-58.
7. Dinis, D., & Barbosa-Póvoa, A. P. (2015). On the Optimization of Aircraft Maintenance Management. In Operations Research and Big Data (pp. 49-57). Springer, Cham.
8. EASA. (2003), Aircraft Line Maintenance, UG.CAO.00134-001, EASA.
9. EASA. (2014), Annex II (Part-145) Approved Maintenance Organisations, Commission Regulation (EU) No 1321/2014, EASA.
10. Huiskonen, J. (2001). Maintenance spare parts logistics: Special characteristics and strategic choices. International journal of production economics, 71(1-3), 125-133.
11. IATA. (1995), Handbook of Production Planning and Control, IATA.
12. Kinnison, H. A., & Siddiqui, T. (2012). Aviation Maintenance Management. McGraw-Hill, New York.
13. Kulkarni, A., Yadav, D. K., & Nikraz, H. (2017). Aircraft Maintenance Checks Using Critical Chain Project Path. Aircraft Engineering and Aerospace Technology, 89(6), 879-892.
14. Lufthansa Technik. (2013), The Maintenance Factory, Connection, Lufthansa Technik AG.
15. Paoletti, B., Profili, M. L., & Calí, I. (2003). Overhaul-Tasks Scheduling Model: A Structured Approach for Solving Combinatorial Problems on Aircraft Maintenance Events. In Operations Research in Space and Air (pp. 279-303). Springer, Boston, MA.
16. PMI. (2013), A Guide To The Project Management Body Of Knowledge, Fifth Edition, Project Management Institute, Inc., Pennsylvania.
17. Rad, T., Shanmugarajan, N., & Wahab, M. I. M. (2011, June). Classification of critical spares for aircraft maintenance. In Service Systems and Service Management (ICSSSM), 2011 8th International Conference on (pp. 1-6). IEEE.
18. Richard Brown. (2017), Asia-Pacific 10-Year Market Analyses, presented at MRO Asia-Pacific Exhibition in Singapore
19. SAE. (2016), Aerospace Standard, AS9110 - Quality Management Systems – Requirements for Aviation Maintenance Organizations, SAE International.
20. Samaranayake, P., & Kiridena, S. (2012). Aircraft maintenance planning and scheduling: an integrated framework. Journal of Quality in Maintenance Engineering, 18(4), 432-453.
21. Sridhar K. (2017), Seminar of Airplane Maintenance Production Planning and Control, Boeing.
22. Van den Bergh, J., De Bruecker, P., Beliën, J., & Peeters, J. (2013). Aircraft Maintenance Operations: State Of The Art. Hubrussel Research Paper November 2013.
23. Vieira, D. R., & Loures, P. L. (2016). Maintenance, Repair and Overhaul (MRO) Fundamentals and Strategies: An Aeronautical Industry Overview. International Journal of Computer Applications, 135(12).