Routine Aircraft Airframe Spare Parts Inventory Analysis Used on Planned Maintenance at PT XYZ

DOI

10.2991/aebmr.k.210727.002How to use a DOI?

Keywords

Inventory analysis, forecasting, planned maintenance

Abstract

Managing aircraft spare parts has been troublesome since there is demand uncertainty. Maintenance cost has been a concern nowadays especially spare parts cost. The objective of this research is to study costs generated by spare parts procurement using new inventory model compared with existing inventory model. To present this inventory analysis, a case study based on a maintenance, repair and overhaul (MRO) company in Indonesia is discussed. In this research, two methods are used, i.e. Syntetos-Boylan Approximation (SBA) and Single Exponential Smoothing (SES) to predict the planned maintenance forecasting. Furthermore, after forecasting has been done, inventory analysis is needed to determine inventory model to be implemented. According to inventory model, fixed order quantity is used to account for costs generated in procurement activity. Since the forecasting methods are new in PT XYZ, this gave different result compared to existing method. Suitable forecasting method is used on each SKU as the demand characteristics are different. The result of this research shows that the new inventory model using SBA and SES method are more accurate, and gave cost reduction 2.4% of total annual procurement cost compared to existing inventory model. It can be said that the method can be applied to improve inventory cost reduction to face challenges in aviation industry. The weakness of this research is only conducted in several spare part SKUs with specific demand characteristics. To prove that the method can be generally accepted, the number of SKU samples needs to be increased.

Copyright

© 2021, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Adhika Prajna Nandiwardhana
AU  - Muslim Efendi Harahap
PY  - 2021
DA  - 2021/07/28
TI  - Routine Aircraft Airframe Spare Parts Inventory Analysis Used on Planned Maintenance at PT XYZ
BT  - Proceedings of the Business Innovation and Engineering Conference 2020 (BIEC 2020)
PB  - Atlantis Press
SP  - 9
EP  - 14
SN  - 2352-5428
UR  - https://doi.org/10.2991/aebmr.k.210727.002
DO  - 10.2991/aebmr.k.210727.002
ID  - Nandiwardhana2021
ER  -