Which of the following can substitute for a bi-annual flight review?

The correct response highlights that completion of one phase of a pilot proficiency award program can indeed substitute for a bi-annual flight review. The FAA recognizes certain pilot proficiency programs as acceptable alternatives to the traditional flight review, acknowledging their role in maintaining and enhancing pilot skills and knowledge. These programs are designed to foster ongoing training and proficiency, which is the primary goal of the flight review requirement.

In contrast, the other options do not fulfill the bi-annual flight review requirements. For example, practice tests conducted by an examiner for additional ratings are aimed at assessing knowledge for a specific certification rather than evaluating overall flying proficiency. Similarly, solo flying with a student pilot endorsement does not serve as a substitute for a flight review because it does not meet the regulatory criteria established by the FAA. None of the other alternatives provide the comprehensive evaluation of both flight skills and knowledge that a flight review entails.