Certification of Flight Engineers and Flight Navigators is regulated under which FAR part?

Certification of Flight Engineers and Flight Navigators falls under FAR (Federal Aviation Regulations) Part 63. This part governs the certification of airmen other than pilots, including flight engineers and navigators, detailing the requirements for obtaining the necessary certifications and the qualifications needed for these positions.

FAR Part 33 pertains to aircraft engine certification standards, which is unrelated to the certification of flight engineers or navigators. FAR Part 65 deals with the certification of airmen, but it primarily focuses on ground instructors and other roles, excluding specific regulations for flight engineers and navigators. FAR Part 36 addresses noise standards for aircraft, which also does not cover certification for flight-related personnel.

In summary, Part 63 is specifically designed to provide the regulatory framework and standards necessary for the certification process of flight engineers and navigators, making it the correct reference for this question.