en Failure Modes Analysis and Risk Priority Number in a Combined Cycle Power Plant تخصصي Special پژوهشي Research <strong>Background:</strong> Work-related accidents are one of the most important factors in the loss of human lives. With technology and industrial progress, the consequences of accidents due to hazards become more severe and may even stop the work of power plants. This study aimed to identify and assess the risk of hazards in a combined cycle power plant. <strong>Methods:</strong> The descriptive cross-sectional study was conducted to assess the risk of a combined cycle power plant using the FMEA method. Having studied various documentation and records, holding different meetings, and brainstorming, the risk priority number was calculated and corrective suggestions have been presented. <strong>Results:</strong> Out of a total of 74 identified risks, 34 (45.94%) were at high risk, and 40 (54.05%) were of medium risk. 85% of the risks had the highest severity levels that could cause explosions and fires, injuries, and burns. <strong>Conclusion:</strong> It can be mentioned that the risks associated with industries such as power plants were high and preventive measures in such places are very important. Identifying hazards and risk assessments with a standard method such as FMEA was a useful way to prevent accidents and human and financial losses.<br> &nbsp; Risk assessment, FMEA, Combined cycle power plant, Fire and Explosion 945 953 http://aoh.ssu.ac.ir/browse.php?a_code=A-10-203-1&slc_lang=en&sid=1 Elnaz Rahimi الناز رحیمی el.rahimi25@gmail.com 0000-0003-0852-8144 No Department of Occupational Health Engineering, School of Health, Ardabil University of Medical Sciences, Ardabil, Iran Fateme Nakhjavani 0000-0003-0852-8144 No Department of Occupational Health Engineering, School of Health, Ardabil University of Medical Sciences, Ardabil, Iran Sara Safari سارا صفری 0000-0001-9767-2927 No Department of Occupational Health Engineering, School of Health, Ardabil University of Medical Sciences, Ardabil, Iran Hanieh Nematollahi هانیه نعمت الهی h.nematollahi1996@gmail.com 0000-0001-9046-9168 No Department of Occupational Health Engineering, School of Health, Ardabil University of Medical Sciences, Ardabil, Iran Samira Mardaneh سمیرا مردانه s.mardaneh73@yahoo.com 0000-0003-1626-3457 No Department of Occupational Health Engineering, School of Health, Ardabil University of Medical Sciences, Ardabil, Iran Amin Babaei Pouya امین بابایی پویا amiin.pouya@yahoo.com 0000-0001-6062-4067 Yes Department of Occupational Health Engineering, School of Health, Ardabil University of Medical Sciences, Ardabil, Iran