TROUBLESHOOTING PADA AIR CONDITIONING RECIRCULATION SYSTEM DI KOMPONEN FAN PESAWAT BOEING 737-900ER

Azhar, Azwari (2023) TROUBLESHOOTING PADA AIR CONDITIONING RECIRCULATION SYSTEM DI KOMPONEN FAN PESAWAT BOEING 737-900ER. Thesis thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

The air conditioning recirculation system is a sub-system in the air conditioning system that functions to recirculate and filter 50% of the air from the cabin so that passengers avoid various kinds of pollution, viruses, bacteria and dust which can trigger irritation to humans such as stuffy noses, runny eyes and runny nose. . Based on the results of the damage data that the author took on XYZ airlines from 2016 - 2019, the damage to the air conditioning recirculation system on the fan component was quite high with 21 times the damage. Where the most dominant damage is the fan pop out 5 times and the fan not working 4 times. This research phase begins with determining critical components using the criticality analysis method by calculating four criteria where there is a high frequency of damage, the impact of damage on the sub-assembly, the removal and installation is difficult and the price is expensive and ABC analysis, then determines the TTF and TTR values of the components. After that identify damage that often occurs in critical components of the air conditioning recirculation system. Based on the results of data processing that has been done, the most critical component is the fan component with 32 grade score. Furthermore, based on the results of damage identification, there are 9 types of damage that often occur in fan components, namely pop out, low flow, bad condition, broken motor, noise, not working, unstable rotation, not rotate and weak. Where the most dominant damage is the fan pop out 5 times and the fan not working 4 times.

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