One of the front-line aviation managerial roles of a director of maintenance is to oversee the training of the employees. What do you see as the three most important areas which would need continued employee training. What makes the continued education of these three areas so significant

minimum 400-word  You must support your assertions with at least 2 sources in current APA format. 

 This includes citations to both the text and the article.  Must have explicit correlation between the text and the article.  Show insight and understanding. Do not just give details and facts.