# 2026-13207: FAA Issues 5G Warning for All Boeing 747 Models

2026-13207, 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/2026-13207
- As of: 2026-07-07
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-13207
- Title: Airworthiness Directives; The Boeing Company Airplanes
- Type: Rule
- Agencies: Transportation Department; Federal Aviation Administration
- Citation: 91 FR 39452
- 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 Issues 5G Warning for All Boeing 747 Models

## Summary

Starting July 1, 2026, all Boeing 747 models must update their flight manuals to avoid using radio altimeter data when flying in Canadian airspace. This change is because 5G signals can mess with the altimeters, making some flight systems act up and increasing pilot workload during critical moments like takeoff and landing. Pilots and airlines need to follow these new rules to keep flights safe without extra costs.

## Abstract

The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 747-100, -100B, -100B SUD, -200B, -200C, - 200F, -300, -400, -400D, and -400F series airplanes. 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 a determination that during takeoff, 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

- Boeing 747s: New AFM Limits for Canada: cost, medium. If you operate a Boeing Model 747 listed in the rule, you must revise the airplane flight manual (AFM) before further flight in Canadian airspace to add limits that prohibit operations relying on radio altimeter data for dispatch/release, takeoff, approach, landing, and go-around. This AD is effect…
- Estimated Compliance Costs for Operators: cost, high. The FAA estimates this AD affects 114 U.S.-registered Boeing 747 airplanes. The required AFM revision for non-radio-altimeter-tolerant airplanes is estimated at 1 work-hour ($85) per airplane. Optional modifications to remove limitations include a radio altimeter replacement up to $120,000 or addin…
- Upgrades Remove AFM Flight Limits: benefit, medium. If you modify a non-radio-altimeter-tolerant airplane so it meets the AD's radio altimeter tolerance criteria (using an FAA-approved method), that modification terminates the AFM operating limitations and you may remove those limitations from the AFM. The AD allows previously approved AMOCs for AD…
- No Cost If You Don't Operate in Canada: benefit, low. If your Boeing 747 does not operate in Canadian airspace, you are not required to comply with this AD and will have no costs under this AD. The FAA states airplanes that do not operate in Canada will not have to comply.

## Related documents

- [2026-15585](https://policyrisk.com/federal-register/2026-15585): Requirements for Interference-Tolerant Radio Altimeter Systems, 2026-07-31
- [2026-13440](https://policyrisk.com/federal-register/2026-13440): Enabling Supersonic Overland Flight, 2026-07-02
- [2026-13126](https://policyrisk.com/federal-register/2026-13126): Designation-Restrict the Operation of Unmanned Aircraft in Close Proximity to a Fixed Site Facility; Extension of Comment Period, 2026-06-30
- [2026-08943](https://policyrisk.com/federal-register/2026-08943): Designation-Restrict the Operation of Unmanned Aircraft in Close Proximity to a Fixed Site Facility, 2026-05-06
- [2025-04846](https://policyrisk.com/federal-register/2025-04846): Extension of the Prohibition Against Certain Flights in the Territory and Airspace of Libya, 2025-03-20
- [2025-03853](https://policyrisk.com/federal-register/2025-03853): Enforcement Policy Regarding “Drug and Alcohol Testing of Certificated Repair Station Employees Located Outside of the United States; Corre…, 2025-03-11

## Sources
- [2026-13207 on federalregister.gov](https://www.federalregister.gov/documents/2026/06/30/2026-13207/airworthiness-directives-the-boeing-company-airplanes)
- [2026-13207 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-06-30/pdf/2026-13207.pdf)

## Related
- [Previous: 2026-13206, Airworthiness Directives; The Boeing Company Airplanes](https://policyrisk.com/federal-register/2026-13206)
- [Next: 2026-13208, Airworthiness Directives; The Boeing Company Airplanes](https://policyrisk.com/federal-register/2026-13208)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-13207 (as of 2026-07-07).