Abstract :
Aircraft is a type of transportation that can reach a certain area in a short time compared to other types of transportation. Every aircraft used will experience a decrease in performance along with the use of flight hours, to maintain and restore the aircraft condition to its original condition, maintenance effectiveness is needed. Aircraft maintenance carried out to keep the aircraft systems or components working properly, one of the components that need maintenance is the Air Separation Module. The purpose of this study to determine the reliability, failure rate, type of failure, and effectiveness of maintenance of the Air Separation Module. The method used to solve problems in the Air Separation Module in this study was the Weibull distribution method by calculating the reliability, failure rate, and determining the type of failure caused. The parameters used in this distribution are the shape parameter B and scale parameter n. The result of analysis calculation found that the Air Separation Module component with P N 2030157 102 experienced a type of early failure because the component has B