Analisa Kegagalan Engine Driven Hydraulic Pump Pesawat Boeing 737-800 NG Menggunakan Metode Fault Tree Analysis

Ilmi, Ahmad Nuril (2025) Analisa Kegagalan Engine Driven Hydraulic Pump Pesawat Boeing 737-800 NG Menggunakan Metode Fault Tree Analysis. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Engine Driven Hydraulic Pump (EDP) merupakan komponen kritis dalam sistem hidrolik pesawat Boeing 737-800NG yang berfungsi mengubah energi mekanik menjadi energi hidrolik untuk mendukung operasi seperti kontrol penerbangan, roda pendaratan, dan rem. Karena bekerja dalam kondisi berat dan kompleks, EDP rentan mengalami kegagalan yang berpotensi mengganggu keselamatan penerbangan. Penelitian ini menerapkan metode Fault Tree Analysis (FTA) untuk menganalisis penyebab kegagalan dan menghitung probabilitas dari Top Event. Hasil evaluasi kualitatif menunjukkan 12 Minimal Cut Sets (MCS), terdiri dari 9 kegagalan tunggal dan 3 kegagalan ganda. Faktor penyebab meliputi keausan mekanis, kontaminasi fluida, kesalahan perakitan, overheating, dan gangguan sistem elektrik. Probabilitas dari Top Event adalah 1,35 × 10⁻⁴ yang tergolong Remote berdasarkan standar FAA AC 25.1309-1A, masih dalam batas aman untuk kejadian non-catasthropic menurut FAA AC 25.1309-1B. Rekomendasi pencegahan meliputi preventive maintenance sebelum MTBF ±1000 jam, inspeksi fluida, kalibrasi komponen elektrik, pengecekan perakitan sesuai standar OEM, serta inspeksi berkala pada wiring.
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The Engine Driven Hydraulic Pump (EDP) is a critical component in the hydraulic system of the Boeing 737-800NG, responsible for converting mechanical energy into hydraulic power to operate essential systems such as flight controls, landing gear, and brakes. Due to its complex and high-load operation, the EDP is vulnerable to failures that may disrupt aircraft operations and compromise safety. This study applies the Fault Tree Analysis (FTA) method to identify root causes of failure and calculate the probability of the Top Event. Qualitative evaluation reveals 12 Minimal Cut Sets (MCS), including 9 single-point failures and 3 double failures. Failure contributors include mechanical wear, fluid contamination, assembly issues, overheating, and electrical disturbances. The Top Event probability is calculated at 1.35 × 10⁻⁴, classified as Remote based on FAA AC 25.1309-1A standards—acceptable for non-catastrophic events. Recommended mitigation includes preventive maintenance before reaching an MTBF of approximately 1,000 flight hours, hydraulic fluid quality checks, routine calibration of electrical components, assembly inspections per OEM specifications, and periodic wiring checks.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Engine Driven Hydraulic Pump, Fault Tree Analysis, Keamanan, Pesawat Terbang, Sistem Hidrolik. Aircraft, Engine Driven Hydraulic Pump, Fault Tree Analysis, Hydraulic System, Safety.
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ174 Maintenance and repair of machinery T Technology > TJ Mechanical engineering and machinery > TJ870 Hydraulic turbines.
Divisions:	Faculty of Vocational > Mechanical Industrial Engineering (D4)
Depositing User:	Ahmad Nuril Ilmi
Date Deposited:	04 Aug 2025 02:56
Last Modified:	04 Aug 2025 02:56
URI:	http://repository.its.ac.id/id/eprint/126751

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