| Summary: | 碩士 === 國立虎尾科技大學 === 航空與電子科技研究所 === 102 === For the airlines, through effective management of aircraft maintenance,not only to meet the security of the aircraft, but also reduce operating cost.In the maintenance cost of structural terms,due to the maintenance cost of Line Maintenance and operation model is simple. And the maintenance cost of Engine and Heavy component are operation in MRO or OEM, so it can reduce cost little space.Therefore, this study to focus on investigates the maintenance cost of Heavy maintenance.
The projects overall focused onAIRBUS A320 model aircraft. It is narrow-body aircraft of short range, affordable and best-selling.The methodology aimed ataddressing the life-cycle of the aircraft in the following three aspects. Firstly, changes in the each inspection of heavy maintenance cost. Secondly, the total cost difference with respect to every heavy maintenance visit. Thirdly, the average flight hour cost on heavy maintenance.And for the " In-Housing " and " Outsourcing Maintenance " deviations of two types of operation and sensitivity analysis are also evaluated, to understand the properties of maintenance cost.
The results showed that the proportion of Non-Routine Maintenance with aircraft age gradually. It causes that increase the proportion of the total cost, even higher than Routine Inspections. And based on the analysis results, the second base cycle of heavy maintenance cost incurred 58% higher than the firstbase cycle. On items of expenditure, Man-Hour cost accounted for the largest proportion, under the Self-Maintenance mode, accounting for about 60%, but in the Outsourcing Maintenance mode, accounting for about 80%.
Commission to perform heavy maintenance by the MRO of regional type, the maintenance cost approximately 94% higher than Self-Maintenance mode. And commission to perform heavy maintenance by the MRO of FAA/EASA certificated, the maintenance cost approximately 125% higher than Self-Maintenance mode. Finally, commission to perform heavy maintenance by the MRO of Europe, the maintenance cost approximately 157% higher than Self-Maintenance mode.
Converted into maintenance cost per flight hour, the average maintenance cost per flight hour is about 67 USD$ on Self-Maintenance mode. And Outsourcing Maintenance mode, the range of the average maintenance cost per flight hour is about 130-171 USD$. Therefore, using operation of Self-Maintenance mode, there is significant maintenance cost advantage over Outsourcing Maintenance mode.
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