Which of the following statements is true about personal flotation devices?

The statement that personal flotation devices must be readily available for flights over water is true based on aviation safety regulations. When operating an aircraft over water, the potential risk of a water landing increases the necessity for additional safety equipment. Personal flotation devices (PFDs) serve as a critical safety measure, providing a means of buoyancy and increasing the chances of survival in the event of an emergency water landing.

Having PFDs readily available ensures that both the pilot and any passengers onboard can quickly access these devices, enhancing their safety. The requirement typically emphasizes that they should be easy to reach and appropriately stowed so that they can be donned quickly in an emergency situation. This reflects a proactive approach to safety in aviation, particularly in scenarios where immediate recovery may not be possible.