EASA Proposes Revised Airworthiness Directive for Leonardo AW139 Main Rotor Dampers
The European Union Aviation Safety Agency (EASA) has issued a proposed revision to an Airworthiness Directive concerning Leonardo AW139 helicopters. The action is prompted by reports of in-flight vibrations linked to degraded main rotor dampers. This condition, if unaddressed, could lead to severe vibrations, potentially damaging rotor controls and reducing the pilot's control of the helicopter. The revised directive mandates repetitive inspections of the dampers and their replacement if found faulty. It also introduces a reduced compliance time for initial inspections and a life limit for certain part numbers to enhance safety.
Official Source: https://ad.easa.europa.eu/ad/2026-0125R1
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