Which items must be onboard prior to flight?

• A. Airworthiness certificate
• B. Airframe and engine logbooks
• C. Weight and balance data
• D. Pilot's license

Answer: (B)

Having the airframe and engine logbooks onboard is essential because they prove the aircraft’s maintenance history and compliance with inspections and airworthiness directives. These records show who performed what work, when inspections were completed, and whether any required maintenance has been addressed. When you’re about to fly, being able to present these logs confirms that the airplane remains in a condition that meets regulatory standards and is safe to operate.

While other items like the airworthiness certificate must be aboard and the pilot’s license is carried by the pilot, the logs provide the ongoing documentation of airworthiness rather than a single certificate. Weight and balance data should be accessible, but the logs specifically confirm that the aircraft has been maintained properly and remains airworthy.