Definition
Permanent maintenance records kept for an aircraft's propeller, documenting its installation, inspections, repairs, overhauls, time in service, and any airworthiness directives or service bulletins complied with. They are separate from the airframe and engine logbooks and travel with the propeller as part of its history.
Plain English
A written history of everything that has been done to the propeller — when it was installed, when it was inspected, when it was repaired or overhauled, and how many hours it has run.
Context Anchor
Encountered during preflight assessment when a pilot reviews aircraft maintenance records before accepting or flying an airplane.
Derivation
Logbook comes from early sea travel, where a ship's speed and progress were written in a record called a log. In aviation, a logbook is still a running record, but it records the history and required maintenance of the aircraft or one of its major parts.
Why Pilots Care
Confirms the propeller is airworthy and within required inspection intervals before takeoff.
Intuition Check
Do not think of propeller logbooks as a pilot's personal notebook. In this context, they are official maintenance records for the propeller, used to show whether it is approved and ready for flight.
Example Sentence 1
Before signing off on the rental, the instructor checked the propeller logbooks to confirm the last 100-hour inspection had been completed.
Example Sentence 2
Any nick or repair to the propeller blades must be documented in the propeller logbooks before the next flight.