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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Angkasa: Jurnal Ilmiah Bidang Teknologi Compiler Jurnal Penamas Adi Buana Vortex
Bangga Dirgantara Adiputra
Institut Teknologi Dirgantara Adisutjipto
Aerospace Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Materials Science & Nanotechnology Mechanical Engineering

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Analysis Pneumatic System of The Causes of Engine Bleed Trip on Boeing 737-900 ER Aircraft Using the Fault Tree Analysis (FTA) Method Kurniawan, Muhammad Hadi; Adiputra, Bangga Dirgantara; Rahmawati, Fajar Khanif; Mulyani, Sri; Prattiwi, Elisabeth Anna
Vortex Vol 6, No 1 (2025)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v6i1.3105

Abstract

The Engine Bleed Air system is one of the primary systems in an aircraft and Its components include the Pressure Regulating Shutoff Valve (PRSOV), Bleed Air Regulator (BAR), High Stage Valve (HSV), High Stage Regulator (HSR), Precooler Control Valve (PCCV), and PCCV sensors 390 and 450. Any malfunction in these components can directly impact aircraft safety and flight operations. This research analyzes the performance failures of the system in regulating the temperature and pressure distributed by the bleed air system, particularly focusing on engine bleed trips. This study aims to determine the percentage of necessary component replacements in the air bleed engine system using the Fault Tree Analysis (FTA) method. Primary data is collected from aircraft maintenance databases and interviews. The percentage of main component replacements needed are: thermostat sensor 390 (42.3%), Precooler Control Valve (19.2%), Pressure Regulating Shutoff Valve (11.5%), and Bleed Air Regulator (7.7%). The remaining components account for the other percentages.
Analysis Problem of Air Bleed Maintenance Message Using Fault Tree Analysis (FTA) Method Kater, Jimi; Adiputra, Bangga Dirgantara; Mulyani, Sri; Priyahapsara, Istyawan; Rahmawati, Fajar Khanif; Prattiwi, Elisabeth Anna
Vortex Vol 6, No 2 (2025)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v6i2.3639

Abstract

The Airbus A320 has two main engines and an Auxiliary Power Unit (APU) that generate high-temperature, high-pressure bleed air used for cabin cooling, anti-icing, and pressurization. Two temperature sensors, Fire Loop A and Fire Loop B, monitor the bleed air distribution line for hot air leaks. An Air Bleed Maintenance Message signals a malfunction in these fire protection loops and requires quick maintenance to avoid system failure. Leaks, especially near the wing and fuel tank, pose significant hazards. This study uses Fault Tree Analysis (FTA) to find the root causes of this message. The main causes identified are damaged interconnecting cables, failure in the Bleed Monitoring Computer (BMC), and faults in Fire Loop A or B. The FTA diagram helps technicians trace each component's role in the failure, aiding efficient inspection and maintenance. This method aims to boost system reliability and improve flight safety.
Co-Authors Aditiya, Irvan Agus Basukesti Agus Basukesti, Agus Agus Rohmanto Ariska Hidayat bahrun bahrun Dwi Hartini Gunawan Gunawan Gunawan Gunawan Hidayat, Ariska Hilmy, Muhammad Nur Istyawan Priyahapsara Kater, Jimi Kris Hariyanto, Kris Kurniawan, Muhammad Hadi Lazuardy Rahendra Pinandhita Maria Asumpta deny Kusumaningrum Marni Astuti Muhammad Irfan Muhammad Irfan Nurcahyani Dewi Retnowati Nurcahyani Dewi Retnowati Nurdin, Riani NURUL ANWAR Okto Dinaryanto Pangkey, Calvin Delano Immanuel Pinandhita, Lazuardy Rahendra Prattiwi, Elisabeth Anna Rahmawati, Fajar Khanif Rianto Rianto Rully Medianto Sahuburua, Stevward Norenssio Sri Mulyani Sri Mulyani Suhanto Suhanto Uyuunul Mauidzoh