Airworthiness Directives; Various Helicopters
Public comments are open until Nov 23, 2026.
The FAA proposes to adopt a new airworthiness directive (AD) for all helicopters equipped with a radio (also known as radar) altimeter. This proposed 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 to 3.98 GHz frequency band (5G Lower C-Band) while opera
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Full history
- Oct 8, 2026
Rule published
Airworthiness Directives; Various Helicopters
Transportation Department
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