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FAA Proposes $4.5B Upgrade for Radio Altimeters

January 9, 2026

2 min read

Key Takeaways

The FAA proposes replacing or upgrading 58,600 radio altimeters.
Estimated cost is about $4.5 billion.
New rules aim to prevent interference from 5G wireless signals.
Compliance deadlines will be staggered.

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Strategic Implications

The proposal may indicate a significant shift in the FAA's approach to managing interference risks from 5G expansion, suggesting a proactive stance to ensure aviation safety. This move could set a precedent for other regulatory bodies to address similar concerns, potentially influencing the global adoption of 5G technology in aviation.

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What Happened

US Regulator Moves to Ensure Safe Operations Amid 5G Expansion

The Federal Aviation Administration has proposed new rules requiring US aircraft operators to replace or upgrade roughly 58,600 radio altimeters, at an estimated cost of about $4.5 billion, to prevent interference from 5G wireless signals. The proposal aims to ensure safe and reliable aviation operations as wireless carriers expand services in the Upper C-band. The FAA cited safety concerns, including erroneous altitude readings and nuisance alerts, which can create hazardous conditions. The proposal was reported by AeroTime.

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