AMP - Aviation Maintenance Technician Powerplant Practice Exam 2024 - Free Aviation Maintenance Technician Powerplant Practice Questions and Study Guide.

Explanation 14 CFR Part 43, also known as the Federal Aviation Regulations, contains information and guidelines for maintenance, repair, and alterations of aircraft. This regulation specifically outlines the criteria for determining if a repair on a powerplant is major or minor. Option A, Airworthiness Directives, are mandatory orders issued by the FAA for correcting unsafe conditions found in aircraft, engines, propellers, and other parts. Option C, Aircraft Owner's Manual, provides guidance for basic operation and maintenance of the aircraft, but does not specifically address repairs. Option D, FAA Repair Stations Manual, provides information for repair stations and their procedures, but does not specifically address repairs on powerplants. Therefore, these options are incorrect as they do not pertain to the specific guidance needed for determining major or minor powerplant repairs.