#TITLE_ALTERNATIVE#

• Main Author: KURNIA CHANDRA (NIM : 13106017); Dosen Pembimbing : Dr. Ir. Edy Suwondo dan Dr. Arief Hariyant, RICKY
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/16997
• Institution: Institut Teknologi Bandung

Aircraft engine takes about 48% maintenance cost of the overall aircraft maintenance costs. Therefore, the implementation of effective programs and efficient <br /> <br /> <br /> treatment is needed by each airline. From the results of analysis failure data collected from PF GMF AeroAsia, Starting System (ATA 80) had a failure with the highest frequency in the review from ATA 71 to ATA 80, with 94 numbers of maintenanc findings or 23% of the overall findings in the pilot's report (Pireps) in 2009. In addition, the reliability report PT. GMF AeroAsia recorded the amount of delay caused by the system starting in the year 2009 had reached 18% of the total delay experienced by Boeing 737-300/400/500. <br /> <br /> <br /> After evaluting the failure data obtained in the engine starting system, the highest failure mode in this system is the failure of engine starter valve. This component <br /> <br /> <br /> contributes up to 10% departure delays of the overall delay during the year 2009. In this research, the evaluation by taking the engine starter valve failure data from SAP System and Strip Report data from January 2004 until June 2010. Data processing using weibull analysis results in the reliability value of the components that make up the engine starter valve, then the results of the analysis used to obtain the optimum interval maintenance actions towards the implementation of engine starter valve. The optimum interval also connected with the maintenance cost analysis for engine starter valve. <br /> <br /> <br /> From the evaluation results can be seen that two failure modes with the highest frequency in the engine starter valve are diaphragm fail and diaphragm dirty. After an <br /> <br /> <br /> evaluation from weibull analysis, diaphragm failure has a normal distribution pattern. It means that the failure of components is influenced by the age. Preventive maintenance <br /> <br /> <br /> with the optimum interval, with respect to the total cost, is needed to improve the reliability of the engine starting system. While for the dirty mode has an exponential pattern, which means that the component’s operating conditions of valve is not match with the design of component. Review of other design from other aircraft manufacturer indicates that a modification in air supply’s control is needed to improve its reliability.