AD 2022-03-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
5G C-Band interference may affect multiple airplane systems using radio altimeter data, including the pitch control laws, including those that provide tail strike protection, regardless of the approach type or weather. This interference could result in uncommanded, inappropriate pitch inputs, which are especially hazardous at low altitudes, and loss of continued safe flight and landing.
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Required Actions
Revising the limitations section of the existing airplane flight manual (AFM) to incorporate limitations prohibiting dispatching or releasing to airports, and approaches or landings on runways, when in the presence of 5G C-Band interference as identified by NOTAMs.
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Compliance Time
Before further flight
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Affected Aircraft
The Boeing Company Model 747-8F and 747-8 series airplanes and Model 777 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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