Ariestiyani, Fitria Novi (2026) ANALISIS KECACATAN PRODUK KANTONG PLASTIK HIGH DENSITY POLYETHYLENE DENGAN METODE FAULT TREE ANALYSIS (FTA) DAN FAILURE MODE AND EFFECT ANALYSIS (FMEA) DI PT HARAPAN SEJAHTERA KARYA UTAMA. Undergraduate thesis, Universitas Pembangunan Nasional "Veteran" Jawa Timur.
![[img]](https://repository.upnjatim.ac.id/style/images/fileicons/text.png) |
Text (Cover)
22032010032-cover.pdf Download (2MB) |
|
Text (Bab 1)
22032010032-bab1.pdf Download (111kB) |
|
Text (Bab 2)
22032010032-bab2.pdf Restricted to Repository staff only until 23 February 2029. Download (604kB) |
|
Text (Bab 3)
22032010032-bab3.pdf Restricted to Repository staff only until 23 February 2029. Download (180kB) |
|
Text (Bab 4)
22032010032-bab4.pdf Restricted to Repository staff only until 23 February 2029. Download (809kB) |
|
Text (Bab 5)
22032010032-bab5.pdf Download (14kB) |
|
Text (Daftar Pustaka)
22032010032-daftarpustaka.pdf Download (146kB) |
|
Text (Lampiran)
22032010032-lampiran.pdf Restricted to Repository staff only Download (1MB) |
Abstract
Manufacturing company PT Harapan Sejahtera Karya Utama produces various types of plastic bags, including 15x30 High Density Polyethylene (HDPE) bags. The company still has quality issues in its production process, which are manifested as a high percentage of product defects. In its production process, the company still faces quality issues in the form of a high level of product defects. From January to September 2025, a total of 90.58 tons of 15x30 High Density Polyethylene (HDPE) plastic bags were found to be defective, representing approximately 7.18% of the total production of 1,278 tons at PT Harapan Sejahtera Karya Utama. To reduce the level of damage to 15x30 HDPE plastic bags, this study seeks to identify the types and causes of damage and offer recommendations for improvement. The methods used in this study are Fault Tree Analysis (FTA) to systematically identify the root causes of defects, and Failure Mode and Effect Analysis (FMEA) to determine improvement priorities based on the Risk Priority Number (RPN) value. The FTA analysis findings indicate that there are 15 main root causes of product defects, which can be attributed to various elements such as human factors, machines, methods, materials, and the environment. Folding and miscutting defects have the highest RPN values according to FMEA calculations, making them a top priority for improvement because they significantly affect product quality and functionality. Recommended improvements include evaluating and updating Standard Operating Procedures (SOPs), improving machine monitoring and maintenance, and training operators to improve accuracy and work skills. It is hoped that implementing these improvements will reduce the defect rate and improve product quality sustainably.
| Item Type: | Thesis (Undergraduate) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Contributors: |
|
||||||||
| Subjects: | T Technology > T Technology (General) > T55.4-60.8 Industrial engineering. Management engineering T Technology > TS Manufactures > TS 155-194 Production Management, Operations Management |
||||||||
| Divisions: | Faculty of Engineering > Departement of Industrial Engineering | ||||||||
| Depositing User: | Fitria Novi Ariestiyani | ||||||||
| Date Deposited: | 24 Feb 2026 05:29 | ||||||||
| Last Modified: | 24 Feb 2026 05:30 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/49643 |
Actions (login required)
 |
View Item |