Airworthiness Directives; The Boeing Company Airplanes
Transportation Department, Federal Aviation Administration | Rule | The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 747-8 and -8F series airplanes and Model 777- 200, -200LR, -300, -300ER, and 777F 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 the determination that this interference may affect multiple other airplane systems using radio altimeter data, including the pitch control laws, including thos.
Reported by Maria LopezAirworthiness Directives; The Boeing Company Airplanes.
The item is dated 2026-06-30.
TeamCog is carrying it as a rulemaking report from FederalRegister.gov published documents API.
Transportation Department, Federal Aviation Administration | Rule | The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 747-8 and -8F series airplanes and Model 777- 200, -200LR, -300, -300ER, and 777F 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 the determination that this interference may affect multiple other airplane systems using radio altimeter data, including the pitch control laws, including thos…
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Official Source
FederalRegister.gov published documents API. Accessed 2026-06-30T15:00:02.940Z.