PERBAIKAN PROSES MAINTENANCE AIR CONDITIONING PACK PESAWAT BOEING 737-800 MENGGUNAKAN DISTRIBUSI WEIBULL UNTUK MEMINIMALISIR DELAY COST

PRASETYA, RIZKI AKBAR (2023) PERBAIKAN PROSES MAINTENANCE AIR CONDITIONING PACK PESAWAT BOEING 737-800 MENGGUNAKAN DISTRIBUSI WEIBULL UNTUK MEMINIMALISIR DELAY COST. S1 thesis, Universitas Mercu Buana Jakarta.

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Abstract

Air conditioning pack is part of the air conditioning system that functions to change bleed air with a temperature of 200 oC into conditioned air with a temperature of 15oC. Based on data reported by the Boeing 737-800 pilot of PT Garuda Indonesia Tbk, there were 648 failures of the air conditioning pack in the period January 1, 2017 - December 31, 2019. These failures hampered aircraft operations due to the need for additional time to ratify and repair unscheduled maintenance so that cause delays. To reduce losses caused by this, it is necessary to make a maintenance interval using the Weibull distribution so that the reliability value of the air conditioning pack component can be maintained so that delay costs can be minimized. In this study using the Pareto and fishbone diagram method to determine the cause of failure, life data analysis using the Weibull distribution to determine component reliability, and cost analysis to determine the optimum cost. After doing the research, it is known that the cause of the failure of the air conditioning pack which causes the highest delay cost is the failure of the temperature control valve caused by the bad contact actuator. In order to minimize failure, it is necessary to carry out a special inspection to measure the resistance in the temperature control valve. After calculating the optimum cost between delay cost and maintenance cost, the inspection interval is set at 1000 flight hours, so as to reduce the cost by $ 60,014 Keyword : air conditioning pack, Weibull distribution, reliability analysis, delay cost Air conditioning pack merupakan bagian dari air conditioning system yang berfungsi untuk merubah bleed air yang bersuhu 200oC menjadi conditioned air yang bersuhu 15oC. Berdasarkan data yang dilaporkan oleh pilot Boeing 737-800 PT Garuda Indonesia Tbk, terdapat 648 kegagalan air conditioning pack dalam rentang waktu 1 Januari 2017 - 31 Desember 2019. Kegagalan tersebut menghambat operasional pesawat dikarenakan perlunya waktu tambah untuk melakukan ratifikasi dan perbaikan pada perbaikan tidak terjadwal sehingga menyebabkan delay. Untuk mengurangi kerugian yang disebabkan hal tersebut, diperlukan pembuatan interval perawatan menggunakan distribusi weibull agar nilai reliability komponen air conditioning pack dapat terjaga sehingga delay cost dapat diminimalisir. Pada penelitian ini menggunakan metode diagram pareto dan fishbone untuk menentukan penyebab kegagalan, life data analysis menggunakan distribusi Weibull untuk mementukan reliability komponen, dan analisis biaya untuk menentukan biaya optimum. Setelah dilakukan penelitian, maka diketahui penyebab kegagalan air conditioning pack yang menimbulkan biaya akibat delay paling tinggi adalah kegagalan temperature control valve yang disebabkan oleh actuator bad contact. Untuk dapat meminimalisir kegagalan perlu dilakukan special inspection untuk mengukur resistansi pada yang terdapat pada temperature control valve. Setelah melakukan perhitungan mengenai biaya optimum antara biaya akibat delay dan biaya maintenance maka ditetapkan interval inspeksi pada 1000 flight hours, sehingga dapat mengurangi biaya sebesar $ 60.014 Kata kunci : air conditioning pack, distribusi weibull, analisis reliability, delay cost

Item Type: Thesis (S1)
Call Number CD: FT/IND. 23 003
Call Number: ST/16/23/006
NIM/NIDN Creators: 41621110026
Uncontrolled Keywords: air conditioning pack, distribusi weibull, analisis reliability, delay cost
Subjects: 100 Philosophy and Psychology/Filsafat dan Psikologi > 150 Psychology/Psikologi > 155 Differential and Developmental Psychology/Psikologi Diferensial dan Psikologi Perkembangan > 155.9 Environmental Psychology/Psikologi Lingkungan > 155.96 Influence of Restrictive Environments/Pengaruh Lingkungan Perbatasan > 155.965 Aircraft/Pesawat Terbang
600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan
700 Arts/Seni, Seni Rupa, Kesenian > 700. Arts/Seni, Seni Rupa, Kesenian > 702 Miscellany of Fine and Decorative Art/Aneka Ragam tentang Kesenian, Aneka Ragam tentang Karya Seni > 702.8 Techniques, Precedures, Apparatus, Equipment, Materials/Teknik, Prosedur, Perlengkapan, Peralatan, Bahan > 702.88 Maintenance and Repair/Perawatan dan Perbaikan
700 Arts/Seni, Seni Rupa, Kesenian > 750 Painting and Paintings/Seni Lukis dan Lukisan > 758 Other Subjects/Subjel Lainnya > 758.6 Industrial and Technical Subjects/Subjek Industri dan Teknik
Divisions: Fakultas Teknik > Teknik Industri
Depositing User: ADELINA HASNA SETIAWATI
Date Deposited: 20 Feb 2023 08:06
Last Modified: 20 Feb 2023 09:06
URI: http://repository.mercubuana.ac.id/id/eprint/74240

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