All aircraft have a radio altimeter, a critical component used to establish the distance between the ground and the aircraft, and is key for low-visibility operations. It is alleged that the C-Band 5G rollout in the U.S. potentially may impact certain aircraft. U.S. Airlines have sought no 5G within 2 miles of runways; but is this only a U.S.-specific problem? Vinamra Longani, Head of Operations, Sarin & Co., explains the concerns regarding 5G rollout and flight safety; and how the crisis may hit global supply chains.