Reliability Analysis of Aircraft Air Conditioning Packs

Abstract

Air conditioning packs of aircraft are subject to a number of failures like other aircraft components. However, the number and results of unexpected failures in the Kingdom are expected to be more severe than the corresponding failures in many other countries due to climatic conditions. This paper examines the time-to failure distribution of Boeing 737 air conditioning packs by using Weibull method which is one of the most useful tools in aerospace system reliability analysis. Forecasting of part failure rates are very important for maintenance planning since it allows for predicting the future failures and determining the overhaul period or scheduled inspection period at an acceptable probability of failure.