FAA REQUIRES AIRCRAFT EQUIPMENT UPGRADES TO WITHSTAND 5G INTERFERENCE
August 11, 2026
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In light of the next generation of 5G wireless networks, the FAA implemented a new rule on July 24, 2026, that commercial aircraft are required to upgrade instrumentation to resist interference from nearby wireless signals. Having worked in close coordination with the Federal Communications Commission, the FAA published the final rulemaking language requiring all altimeters on commercial aircraft to meet certain next-generation performance standards for aircraft operating within the United States. Concerns that new 5G wireless technology could interfere with aircraft altimeters and other interconnected avionics prompted action in this regard, especially as 5G signal strength intensifies near major U.S. airports. Those within the aviation industry are expected to spend approximately $7 billion retrofitting aircraft to withstand 5G wireless signals. As mentioned in the FAA’s Requirements for Interference-Tolerant Radio Altimeter Systems NPRM issued in January 2026, covered U.S. and foreign air carriers are required to install upgraded radio altimeters on a phased timeline. Carriers operating pursuant to 14 C.F.R. 121 and 14 C.F.R. 129 should anticipate the earliest compliance date as compared to other operators given that Part 121 and 129 operations account for the vast majority of flights within the United States. The FAA final rule is available here.
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