飛安相關事件之風險分析

Abstract

本研究之目的為藉由歸納與分析國內飛安相關事件紀錄，以鑑定可能影響飛航安全之高風險因子。本研究並探討航空業者及其從業人員對於風險之認知與上述之分析結果間之差異性，及不同航空公司間之風險認知差異。針對上述差異性分析結果，本研究並提出相關因應及改善建議，以期提昇飛安。 因此；本研究首先針對我國民航業五家民航運輸業者近期發生之飛安相關事件進行歸納與分析，並透過風險矩陣模式以瞭解我國飛航安全高風險因子。其次；本研究藉由非成對獨立樣本T檢定針對高風險項目之頻率與嚴重程度進行航空業者風險認知與分析結果之差異性檢定，其結果顯示航空公司飛安主管及從業人員對於飛安多持保守謹慎心態。進而，本研究利用ANOVA分析個別航空公司其主管及從業人員風險認知與該公司飛安紀錄所得分析結果之差異性比較，並探討不同航空公司間對風險認知程度是否有差異。結果顯示各航空公司風險認知程度仍有部分差異，其次各航空公司所認知高風險項目未必為實際高風險項目；而不同航線別(國際/國內)間則無顯著差異。最後，本研究根據研究結果進行討論，並加以提出因應對策。

The research endeavors, via the analysis of local flight safety records, in identifying flight safety risk factors that might induce high adverse safety impact. This study also tries to locate the discrepancy, if any, between the derived outcome and the safety cognition that feedback from aviation industry. Variation among separate aviation liners in relevant regards are also studied and analyzed. Upon above, conclusion and suggestion then follows. As the beginning, some risk matrix model analysis is performed in accordance with the flight safety records that input from five Taiwanese air carriers in recent years, so as to identify the high risk safety factors. Next, this study undertakes various un-paired independent sample t tests on both severity and frequency of the derived safety factors through the above-mentioned risk matrix analysis and their counterparts as perceived by both high-level supervisors and/or employees of aviation industry. The result reveals that both high-level supervisors and the employees of aviation industry are inclined to be conservative and conscientious when confronting safety issues. In addition, this study further utilizes ANOVA analysis to investigate the discrepancy between the derived high risk safety factors and that perceived by managerial level and their underling for each individual aviation operator. Comparisons of perceived risk indicators among separate airlines are also conducted. The result validates the hypothesis that significant difference prevails regarding the perceived risk indicators among aviation operators. Besides, for each operator there is still some divergence between the perceived and derived risk indicators. Nevertheless, no obvious difference can be identified among different routes. (International vs. domestic) By end of this study, some conclusion, recommendation and the likely countermeasure are thereby proposed.