FAA Investigates Vertical Vibrations in Bell 206L-Series Helicopters – Request Operator Input
Airworthiness Concern Highlights Reports of In-Flight Oscillations May 6, 2025 — The Federal Aviation Administration (FAA) has issued an Airworthiness Concern Sheet (ACS) after receiving multiple reports of severe, uncommanded vertical vibrations during flight in Bell 206L-series helicopters. The issue affects all models in the 206L family—the 206L, 206L-1, 206L-3,...
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