The Application of Hazard Identification and Risk Analysis (Hira) and Fault Tree Analysis (Fta) Methods for Controlling Occupational Accidents in Mixing Division Dewa-Dewi Farm

Abstract

Occupational accident is one thing that should be avoided, considering occupational accident has very harmful effects for boh the company and the labours. Dewa-Dewi Farm is a poultry farm which has four main divisions, which is mixing division is one of them. There are 5 main activities in mixing division, such as receiving and testing, weighing, grinding, mixing and distributing the feed. All work activities work in mixing division potentially bring out accidents. Identify Hazards is necessary to minimize accidents. Hazard identification and risk analysis (HIRA) is a method of identifying hazards potential that may occur in a job. By using HIRA known that the five main activities potentially face risk of occupational accident such as earaches, muscle injury, shortness of breath, sore eyes, slipping, falling, strucking, electric shock, burns and skin allergies. After identifying the problem with HIRA method is completed then carried out a risk assessment based on two criteria: likelihood (probability) and severity (impact) should be done. Based on the risk assessment there are 2 extreme-risk, 7 high risk, 4 medium- risk and 12 low-risk activities. The next method used is Fault Tree Analysis (FTA) which is a method of error analysis by direct observation and interviews, which then were visualized with a model of the fault tree. Analysis of the causes of accidents using FTA method shows the source of the risks posed by unsafe action and unsafe condition that is the wrong way of working and poor working environment. There are several recommendations given such as instructional the best way about manual lifting, provision of tools and personal protective equipment, and improve the working environment. Keywords: Occupational Accident, HIRA, FTA, Unsafe Action, Unsafe Condition

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