Which publication is considered an expansion of the FARs and AIM?

The Pilot's Handbook of Aeronautical Knowledge (PHAK) serves as an essential resource that expands upon the information provided in the Federal Aviation Regulations (FARs) and the Aeronautical Information Manual (AIM). The PHAK contains comprehensive guidance on various aeronautical subjects, including principles of flight, aircraft systems, weather, navigation, and human factors, making it broader in scope than the FARs and AIM. By synthesizing and elaborating on the standards and regulations outlined in the FARs, as well as the operational information in the AIM, the PHAK effectively serves as an educational tool for pilots, enhancing their understanding of aviation concepts and requirements.

The other options, while valuable resources for pilots, do not have the same expansive role. Flight Publications may refer to various materials and manuals, but it does not specify its content in relation to FARs and AIM. The Airplane Flying Handbook (AFH) focuses specifically on fundamental flight maneuvers and techniques, while the Pilot's Operating Handbook (POH) is tailored for specific aircraft operations and performance, making them more specialized rather than broad expansions on regulatory and operational guidance.