A maintenance logbook should be kept for which components of an aircraft?

• A. Airframe, each engine, and each propeller (All of the Above)
• B. Fuselage and wings only
• C. Engines only
• D. Propellers only

Answer: (D)

Maintenance records exist to show that critical components have been inspected and serviced, keeping the aircraft airworthy. Propellers require their own maintenance logbook because they have separate inspection and overhaul schedules, and the condition of blades, hubs, and the balance must be tracked over time. A dedicated propeller log shows compliance with maintenance intervals, ADs, and service life, and provides a clear history for future maintenance decisions. In this context, focusing on propellers highlights the importance of component-specific records for items with unique inspection and overhaul requirements. This is the correct option because propellers have distinct maintenance needs that are best tracked in their own logbook.