Which regulation requires pilots to maintain a logbook of flight hours?

FAR 91 is the regulation that outlines the general operating and flight rules for pilots, including the requirement to maintain a logbook of flight hours. Specifically, it details the necessary records that pilots must keep to demonstrate their flight experience, which is crucial for fulfilling both regulatory requirements and personal tracking of qualifications.

These logbooks serve several purposes, including documenting flight time for currency, endorsements, and meeting the requirements for various certifications and ratings. Pilots are also required to record specific details in their logbooks, such as the date of flight, duration, type of aircraft, and flight conditions.

In contrast, FAR 135 primarily governs on-demand charter and commercial operations, including requirements for operators and pilots in those environments, while FAR 23 pertains to airworthiness standards for normal category airplanes, and FAR 145 covers repair stations. These other regulations establish standards relevant to specific operational areas but do not directly address an individual pilot’s logbook requirements.