What is the function of the Object Free Area (OFA)?

• A. Nothing except fixed by function, frangible or mobile; ground area centered on runway
• B. A designated obstacle clearance zone
• C. A fuel storage and handling area
• D. An area reserved for construction staging during runway work

Answer: (A)

The Object Free Area is a defined ground space around the runway that must be kept clear of objects to ensure safe takeoff and landing. Its function is to provide a clear, obstacle-free zone centered on the runway, allowing only items that are necessary for operation and that are designed to be safe in the event of an impact. That means objects fixed by function (essential runway-related equipment), frangible items (designed to break away safely), or mobile items (that can be moved if needed) may be present, but everything else should be cleared. This focus on keeping the area around the runway free of obstructing objects is why the best choice describes it as a ground area centered on the runway with only those permitted types of objects. The other options refer to different concepts (an obstacle clearance zone, fuel storage, or construction staging) that aren’t the purpose of the OFA.