Optimum investigation and priority ranking of hazards in aviation maintenance

With advancement in technology, safety and reliability of aircraft and aviation industry as a whole has progressed tremendously over time. A significant area in the aviation field which still has prominent human factor involvement is aviation maintenance. With high degree of human involvement in the aviation maintenance field, it stands as an area that needs to be focused heavily in the upcoming times to improve aviation safety. Human factors in this field should be studied thoroughly and hazards should be identified and analyzed so as to take appropriate precautionary measures. In this work, relevant literatures pertaining to aviation maintenance hazards are studied and major hazards and their sources are listed. Using past data as a benchmark, further questionnaires pertaining to hazards are formulated and study is done. Since assimilating a large amount of collected data becomes difficult qualitatively, a quantitative framework is integrated to aviation maintenance hazard study. Here, modified FMECA framework is integrated with MCDM for the purpose of quantitative study. AHP, a common MCDM for ranking purpose and DEMTEL, a common MCDM method for calculating interdependencies are used. The study will identify, analyze and rank all the hazards relevant in aviation maintenance and also establish the interdependencies of hazards among each other