Write a module case study regarding FAA duty day regulations for pilots:
Review the FAA's regulations (FARs) regarding duty day limits for FAR Part 121, Part 135, and Part 91 flight operations. Next, analyze and evaluate the differences in the regulations between Parts by creatively applying the concepts of human performance and limitations in the aviation community. Finally, develop and support your opinion as to whether the differences in the regulations are justified in regard to maintaining aviation safety. Please support your work with a reliable source(s).