How often should propeller inspections be conducted?

• A. Once a year regardless of use
• B. Every 100 hours of operation
• C. Monthly, to ensure proper functioning
• D. Only when issues are reported

Answer: (B)

Propeller inspections are crucial for maintaining the safety and efficiency of an aircraft's operation. The correct frequency for conducting propeller inspections is typically based on flight hours and is dictated by regulations and maintenance schedules.

Choosing to perform inspections every 100 hours of operation aligns with the guidance provided by the FAA and propeller manufacturers. This routine check ensures that any wear, damage, or maintenance needs are identified before they can lead to more serious issues. Regular inspections help to catch problems early, improving overall aircraft safety and reliability.

While annual inspections and inspecting propellers only when issues are reported may seem practical, they do not adhere to the proactive maintenance approach that's recommended to prevent potential malfunctions. Monthly inspections might be excessive for most operations, considering that 100-hour checks are a balance of safety and practicality, especially for aircraft that do not operate frequently.