FAA Says 5G Could Impact Radio Altimeters on Most Boeing 737s

U.S. regulators are warning that 5G wireless operations could affect radio altimeters in most Boeing 737 aircraft and impact crew workload and airplane landings. From a report: The Federal Aviation Administration's directive affects Boeing's 737s, except its 200 and 200-c series, a Federal Register notice posted online on Wednesday said. It added that their "radio altimeters cannot be relied upon to perform their intended function if they experience interference from wireless broadband operations in the 3.7-3.98 GHz frequency band (5G C-Band)." The FAA said in the notice, scheduled to be formally published on Thursday, that regulators had determined that "during approach, landings, and go-arounds, as a result of this interference, certain airplane systems may not properly function". That would result in "increased lightcrew workload while on approach with the flight director, autothrottle, or autopilot engaged, which could result in reduced ability of the flight crew to maintain safe flight and landing of the airplane," it said.

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