Evaluation and Analysis of Manhour Rate in Maintenance of Gas Turbine Engine for Industry

Niko Ardian; Edy Suwondo; Cornelis Radjawane

Niko Ardian Master’s Student, Aerospace Engineering Study Program, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Bandung, West Java, Indonesia
Edy Suwondo Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Bandung, West Java, Indonesia
Cornelis Radjawane PT GMF AeroAsia, Soekarno Hatta International Airport (CGK) Tangerang, Indonesia

Keywords: cost of goods sold, industrial engine maintenance, rate of man-hours

Abstract

The industrial gas turbine engine maintenance unit PT XYZ has a significant difference in the rate of man-hours with its core business, namely the maintenance of airframe and engines. This study aims to determine the factors that cause differences in the rate of man-hours in the two units and provide suggestions for the rate of man-hours. This study uses the IATA Labor Rate and Productivity Calculation for Commercial Aircraft Maintenance to produce the rate of man-hours. The factor which most affects the difference in the rate of man-hours is the overhead. A breakdown analysis of the overhead cost is then carried out by comparing the costs contributing to overhead costs. The calculation results show that the rate of man-hours for aviation engine maintenance is USD 55.80, while for industrial engine maintenance is USD 16.22. In addition, the most contributing overhead costs are the costs of production facilities.

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