Airspace rules change in Michigan as old navigation beacons shut down

The Federal Aviation Administration is updating flight rules around Iron Mountain Kingsford, Michigan. This change is happening because an old radio navigation beacon is being turned off.

For decades, aircraft have navigated using a network of ground-based radio beacons. These beacons are expensive to maintain and are being phased out as planes increasingly rely on satellite navigation. This small change in Michigan is one of many similar adjustments happening across the country as the US air traffic system moves away from old infrastructure.