How do you preflight the cabin wheelchair?

The correct choice emphasizes the importance of verifying that the cabin wheelchair is present and secured properly, especially when straps are applicable. This step is critical because ensuring that the wheelchair is secure helps prevent potential hazards during flight, such as the chair becoming a projectile in turbulence or in the event of an evacuation. Ensuring the wheelchair is present is essential to meet the needs of passengers requiring assistance, and checking the securement provides confidence that the equipment is ready for use.

Other options, while relevant to general preflight checks, do not specifically address the critical aspects of ensuring the wheelchair's presence and security. Cleanliness and accessibility are certainly important, but they don't directly impact the immediate operational readiness of the wheelchair. Ensuring it is fully functional and inflating may apply to wheelchairs that require inflation, but basic wheelchairs typically do not have inflatable components. Inspecting the wheels for proper rotation is also relevant but is more about general maintenance than securing the equipment for use during the flight. Thus, the verification of presence and security stands out as the most crucial step in preflighting a cabin wheelchair.