ANALISIS PENYEBAB KEGAGALAN APU PADA PESAWAT BOEING 737-800 NG DENGAN MENGGUNAKAN METODE FAULT TREE ANALYSIS

CHRISTIAN LIBERATUS, IGNATIUS (2020) ANALISIS PENYEBAB KEGAGALAN APU PADA PESAWAT BOEING 737-800 NG DENGAN MENGGUNAKAN METODE FAULT TREE ANALYSIS. Skripsi thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

In its application, APU is used when the main engine is off. Normally the APU is turned on when the aircraft is prepared to fly by technicians or by the flight. The APU will be turned off when the main engine of the aircraft is on. APU will be restarted after the aircraft lands and before the engine is turned off so that electricity and AC packs on the aircraft can still be used. The purpose is to identify the analysis of the failures that occurred to the APU on Boeing 737-800 NG using a fault tree analysis method. Fault Tree Analysis (FTA) is a technique used to identify risks that contribute to failure. This method was carried out with a Top Down approach, which began with the assumption of failure or loss from a peak event (Top Event) then details the causes of a top event to a failure. After making a fault tree diagram, then an evaluation was done with MCS. The cause of the failure of the APU System on Boeing 737-800 NG aircraft from aircraft maintenance analysis since 2 January 2018 until 13 September 2019 there were 100 incidents. From the HIL data, the component that most dominated the APU failure on the Boeing 737-800 NG was the starter generator. Based on the results of the analysis using the FTA method with the assumption that unscheduled APU system maintenance as a top event is obtained, 14 intermediate events using the logic gate ""OR"" and ""AND"" logical gate and 47 basic events that cause a failure on the APU system aircraft Boeing 737-800 NG.

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