What is the purpose of maintaining maintenance records (logbooks)?

• A. To document work performed, parts used, and ensure traceability and continued airworthiness.
• B. To track passenger counts.
• C. To advertise the airline's services.
• D. To increase flight crew salaries.

Answer: (A)

Maintaining maintenance records is about proving what work has been done on the aircraft, what parts were installed, and when, so the aircraft remains airworthy. These logbooks provide a complete trail of maintenance actions, including inspections, repairs, part replacements (with part numbers and serials), and compliance with mandatory requirements like service bulletins and airworthiness directives. With that history, operators and regulators can verify that the aircraft meets safety standards at all times, plan future maintenance based on actual wear and service life, and determine eligibility for continued flight, resale, or leasing. Without this traceability, it’s impossible to demonstrate that the aircraft has received the necessary maintenance to remain safe to fly. The other options miss the purpose entirely, as passenger counts, marketing, or salaries have no bearing on the aircraft’s airworthiness.