# 2026-13206: FAA: 5G Signals Now Forcing New Boeing 737 Landing Rules

2026-13206, Airworthiness Directives; The Boeing Company Airplanes, is a Federal Register rule from Transportation Department, Federal Aviation Administration published 2026-06-30, effective 2026-07-01; PRIA reads it as touching household money (as of 2026-07-07).

- Canonical: https://policyrisk.com/federal-register/2026-13206
- As of: 2026-07-07
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-13206
- Title: Airworthiness Directives; The Boeing Company Airplanes
- Type: Rule
- Agencies: Transportation Department; Federal Aviation Administration
- Citation: 91 FR 39418
- Published: 2026-06-30
- Effective: 2026-07-01
- Comments close: 2026-08-14
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: 2120-AA64
- Last updated: 2026-07-07

## In one line

FAA: 5G Signals Now Forcing New Boeing 737 Landing Rules

## Summary

The FAA is updating rules for many Boeing 737 airplanes to keep flights safe when flying over Canada. Because 5G signals can mess with radio altimeters, pilots will get new instructions to avoid using certain systems during landings and approaches. This change starts July 1, 2026, and helps pilots stay in control without extra hassle or big costs.

## Abstract

The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-, -200, -200C, -300, -400, -500, -600, - 700, -700C, -800, -900, and -900ER series airplanes, except for Model 737-200 and -200C series airplanes equipped with a certain flight control system. This AD was prompted by the determination that 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 Lower C-Band) while operating in Canadian airspace, and the determination that, during approach, landings, and go-arounds, as a result of this interference, certain airplane systems may not properly function, resulting in increased flightcrew workload while on approach with the flight director, autothrottle, or autopilot engaged, which could result in reduced ability of the flightcrew to maintain safe flight and landing of the airplane. This AD requires revising the existing airplane flight manual (AFM) to incorporate limitations prohibiting certain operations requiring radio altimeter data when operating in Canadian airspace. The FAA is issuing this AD to address the unsafe condition on these products.

## Effects PRIA read

- AFM rule change before flights to Canada: cost, low. If your airline operates Boeing 737 series airplanes listed in this AD (Models 737-100 through -900ER, except 737-200 and -200C with an SP-77 flight control system), you must revise the airplane flight manual (AFM) for non-radio-altimeter-tolerant airplanes before further flight in Canadian airspac…
- Expensive optional equipment to remove limits: cost, high. Operators may remove the AFM operating limitations by modifying airplanes to be radio-altimeter-tolerant; optional modifications listed include a full radio-altimeter replacement costing up to $120,000 per airplane or a filter addition option estimated up to $14,040 (24 work-hours at $85/hr plus $1…
- New pilot operating limits and workload: cost, low. Pilots of affected non-radio-altimeter-tolerant Boeing 737s will get new AFM limitations and operating procedures that prohibit certain operations requiring radio-altimeter data in Canadian airspace (effective July 1, 2026). The AD notes these changes are to prevent radio-altimeter interference fro…

## Related documents

- [2026-15585](https://policyrisk.com/federal-register/2026-15585): Requirements for Interference-Tolerant Radio Altimeter Systems, 2026-07-31
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## Sources
- [2026-13206 on federalregister.gov](https://www.federalregister.gov/documents/2026/06/30/2026-13206/airworthiness-directives-the-boeing-company-airplanes)
- [2026-13206 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-06-30/pdf/2026-13206.pdf)

## Related
- [Previous: 2026-13205, Airworthiness Directives; The Boeing Company Airplanes](https://policyrisk.com/federal-register/2026-13205)
- [Next: 2026-13207, Airworthiness Directives; The Boeing Company Airplanes](https://policyrisk.com/federal-register/2026-13207)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-13206 (as of 2026-07-07).