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FAA Issues Directives Due To 5G Interference In Canada

June 30, 2026

2 min read

Key Takeaways

The FAA issued airworthiness directives due to 5G interference risk in Canada.
Some US transport aircraft will face operating restrictions starting on 1 July.
The directives affect an estimated 1,000 US-registered aircraft.
Airlines updated many altimeters in recent years to address US 5G signals.

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Strategic Implications

The FAA's directives may indicate a growing concern about 5G interference with aircraft systems, which could have significant implications for the aviation industry. The restrictions could suggest a need for further investment in altimeter updates and may impact airline operations in Canada.

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What Happened

US Transport Aircraft Face Operating Restrictions North Of Border

The US Federal Aviation Administration has issued several airworthiness directives in response to concerns that 5G cellular signals near Canadian airports could interfere with aircraft radio altimeters. The directives, which take effect on 1 July, will affect an estimated 1,000 US-registered transport and commuter aircraft that lack updated radio altimeters. The FAA acted because Canada is eliminating protections near airports that were put in place in 2023 to prevent 5G interference. The directives were reported by FlightGlobal.

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