What documents must be aboard an aircraft while flying solo?

The requirement for documents on board an aircraft during a solo flight is specifically outlined in aviation regulations. The correct answer highlights the AROW acronym, which stands for Airworthiness Certificate, Registration, Operating Handbook, and Weight and Balance information.

The Airworthiness Certificate ensures that the aircraft is in a condition for safe operation; the Registration proves ownership and allows for traceability; the Operating Handbook provides essential information regarding the aircraft's performance and operating limitations; and the Weight and Balance documentation is crucial for confirming that the aircraft is loaded within safe limits for flight.

Having these documents ensures not only compliance with FAA regulations but also promotes safety and preparedness during the flight. While other documents like flight plans and weather briefings can be important for overall flight safety and planning, they are not mandated to be on board the aircraft itself during a solo flight. Similarly, maintenance logs and fuel receipts serve important roles but are not required documents to be carried while flying solo.