Veronica, Yemima Lidya (2022) Perencanaan Proyek Pemeliharaan Turbin Gas Untuk Standarisasi Durasi Turn Around Time (TAT) Pada Perusahaan MRO (Studi Kasus: PT. GMF Aero Asia). Other thesis, Institut Teknologi Sepuluh Nopember.
![[thumbnail of 02411840000166-Undergraduate_Thesis.pdf]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
02411840000166-Undergraduate_Thesis.pdf Restricted to Repository staff only Download (10MB) | Request a copy |
Abstract
PT. GMF Aero Asia melakukan penetrasi bisnis di bidang non-aviasi yaitu segmen usaha perawatan dan perbaikan Industrial Gas Turbine Engine (IGTE) yang berfokus pada layanan jasa perbaikan atau peninjauan berkala pembangkit listrik di seluruh Indonesia. Kinerja operasi pembangkit listrik dibutuhkan untuk memproduksi listrik yang akan didistribusikan ke masyarakat. Dengan peluang usaha yang menjanjikan, fokusan bisnis terhadap maintenance, repair, and overhaul pada komponen-komponen pembangkit listrik sangat bergantung kepada permintaan yang dikerjakan Perseroan. Perseroan sedang meningkatkan performansi untuk melakukan bisnis repair and overhaul gas turbine. Meskipun sistem perencanaan dan pengendalian gas turbine telah dilakukan di lapangan, namun masih belum sesuai dengan perencanaan proyek akibat perubahan lingkup pekerjaan, pengkoordinasian transportasi, sumber daya, dan keahlian tenaga kerja, serta sistem evaluasi dan perencanaan yang buruk. Apabila performansi buruk, menyebabkan keterlambatan pemenuhan permintaan dari waktu yang telah ditentukan atau disebut sebagai Turn Around Time (TAT). Data historis menunjukkan terdapat 8 proyek delayed dengan total delayed harian selama 1.141 hari dan 19 proyek selesai dikerjakan secara on time. Delayed tertinggi terjadi pada pengerjaan proyek ke-7, dengan delayed harian selama 324 hari. Dalam menyelesaikan masalah, ditentukan komponen kritis pemeliharaan gas turbine menggunakan ABC Analysis yaitu Unit Rotor dan Bearing Seals yang berpengaruh pada 62,97% waktu operasional Perseroan yang merupakan Major Inspection. Setelah dilakukan analisis, kurangnya kelengkapan step aktivitas pekerjaan yang harus dilakukan, menjadi faktor utama terjadi keterlambatan proyek sehingga akan dirancang Standard Operational Procedure (SOP) agar aktivitas terstandarisasi sesuai standar internasional USA Maintenance. Kemudian, dilakukan perhitungan waktu normal dan waktu standard diacu dari Critical Path aktivitas pemeliharaan Unit Rotor dan Bearing Seals. Sehingga diketahui pengerjaan pemeliharaan Unit Rotor sebelum dilakukan standarisasi memiliki ketepatan waktu hanya 79,39%. Setelah dilakukan standarisasi, ketepatan waktu menjadi 99,99%. Sedangkan, pengerjaan pemeliharaan Bearing Seals sebelum dilakukan standarisasi memiliki ketepatan waktu hanya 54,38%. Setelah dilakukan standarisasi, ketepatan waktu menjadi 99,96%. Waktu normal pemeliharaan Unit Rotor adalah 519 hari dan waktu standard pemeliharaan Unit Rotor adalah 570 hari. Sedangkan, waktu normal pemeliharaan Bearing Seals adalah 372 hari, dan waktu standard pemeliharaan Bearing Seals adalah 408 hari. Setelah itu, dirancang strategi pemeliharaan dengan pendekatan Reliability Centred Maintenance (RCM) untuk identifikasi penyebab dan akibat kegagalannya menggunakan metode Failure Mode and Effect Analysis (FMEA), Fault Tree Analysis (FTA), dan Logic Tree Analysis (LTA). RCM bertujuan meningkatkan manajemen, penjadwalan dengan Manajemen Proyek, dan pemberlakukan pemeliharaan yang efektif dan efisien.
=================================================================================================================================
PT. GMF Aero Asia expands into non-aviation markets business segment, specifically the Industrial Gas Turbine Engine (IGTE) maintenance and repair, which focuses on power plant repair or repair services throughout Indonesia. A power plant's operational performance is required to generate electricity that will be distributed to the public. The business focus on maintenance, repair, and repair of power plant components is very dependent on the demand that the Company will carry out with the promised business opportunities. The company is working to improve its performance in the gas turbine repair and overhaul business. Even though the gas turbine planning, and control system has been deployed, it is still not in accordance with project planning due to work, transportation coordination, resources, and workforce expertise, as well as inadequate evaluation and planning systems. When performance is poor, it results in delays in fulfilling requests from a predetermined time, also known as Turn Around Time (TAT). According to historical data, there were 8 pending projects with a total daily delay of 1.141 days and 19 projects that were completed on time. The seventh project had the longest delay, with a daily delay of 324 days. To solve the problem, the critical components of gas turbine maintenance, namely the Unit Rotor and Bearing Seals, are identified using ABC Analysis. To solve the problem, the critical components of gas turbine maintenance, namely the Unit Rotor and Bearing Seals, which affect 62.97% of the Company's operational time, are determined using ABC Analysis, which is a Major Inspection. According to the analysis, the lack of completeness of the work activity steps that must be completed is the primary cause of project delays, so a Standard Operational Procedure (SOP) will be designed to standardize activities in accordance with USA Maintenance international standards. The normal time and the standard time are taken from the Critical Path for Unit Rotor and Bearing Seals maintenance. As a result, it is known that the Unit Rotor maintenance prior to standardization has a timeliness of only 79.39%. The probability of timeliness increases to 99.99% after standardization. Meanwhile, prior to standardization, maintenance of Bearing Seals was only 54.38% timely. After standardization, the timeliness increases to 99.96%. The Unit Rotor has a normal maintenance time of 519 days and a standard maintenance time of 570 days. Meanwhile, the standard maintenance time for Bearing Seals is 408 days, and the normal maintenance time is 372 days. Following that, a maintenance strategy based on the Reliability Center Maintenance (RCM) approach was developed to determine the causes and consequences of the failure via Failure Mode and Effect Analysis (FMEA), Fault Tree Analysis (FTA), and Logic Tree Analysis (LTA). RCM aims to improve maintenance management, scheduling by used Project Management, and enforcement to achieve more effective and efficient maintenance.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Gas Turbine, Manajemen Proyek, Maintenance Design, Standard Operational, Reliability Centred Maintenance (RCM), Project Management, Maintenance Design, Standard Operational, Reliability Centred Maintenance (RCM) |
| Subjects: | T Technology > T Technology (General) > T56.8 Project Management |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Industrial Engineering > 26201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Marsudiyana - |
| Date Deposited: | 13 Feb 2026 01:51 |
| Last Modified: | 13 Feb 2026 01:51 |
| URI: | http://repository.its.ac.id/id/eprint/132422 |
Actions (login required)
 |
View Item |