The Evaluation of the Risk Factors of Ultra-light Aircrafts

• Main Authors: Yuh-fuh Yang, 楊玉富
• Other Authors: Hung-sying Jing
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/94480999835959711217

碩士 === 國立成功大學 === 航空太空工程學系專班 === 95 === The goal of this research: “The Evaluation of the Risk factors of Ultra-light Aircrafts” is to evaluate the risk factors of powered Ultra-light Aircrafts in Taiwan. This study adopted “qualitative research” and “participant observation” methods. The data of this study came from two parts. The first part came from Civil Aeronautics Authority records, newspapers, and personal records from past ten years of flights. With these data, 72 causes were identified. Using IATA´s rules, the causes were classified into 4 major parts: the first causes of accidents is human factors with 44 cases, the second is technical factors with 14 cases; the third is environment factors with 10 cases and the last is organization with 4 cases. The second part of the data came from interviews with the experienced ultra-lights fliers and officers of government. From these data we identified 45 risk factors. From these 45 risk factors, a questionnaire was designed. In each question the Likert 5 sorts measurement is used to evaluate the risk factors: “very high”, “high”, “medium”, “low”, or ”very low”. There were totally 80 copies distributed with 70 returned. Disregarding the ineffective ones, there were 44 left. The reliability is found to be 0.98. The means of all items are above 3.1. The highest mean is 4.54. The most important cause of accident is human factors, the second is technical factors, the third is environment factors and the last is organization. From the results of this study, a safety checklist for people who are interested in ultra-light flight is proposed. The checklist follows ALRA as a model to give each risk factor a warning level. The number of warning symbols accompanying each factor indicates relative level of risk. Generally, the greater the number of warning symbols, the greater the risk presented by that factor. It is expected that the proposed safety checklist can provide a reference about the risk of flight of ultra-light aircrafts and promote the flight safety.