EASA AD 2025-0148
Main Rotor — Swashplate Duplex Bearing — Inspection
Summary
The document titled 'Main Rotor — Swashplate Duplex Bearing — Inspection' is a regulatory directive concerning the inspection of the swashplate duplex bearing on LEONARDO S.p.A. helicopters, specifically models A109 and A119. It addresses maintenance requirements to ensure the continued airworthiness and safety of these helicopter models by focusing on a critical component of the main rotor system.
What Changed
This document introduces mandatory inspection procedures for the swashplate duplex bearing on the main rotor of LEONARDO A109 and A119 helicopters. It establishes specific inspection criteria and intervals to detect potential wear or damage that could compromise rotor function and flight safety.
Why It Matters
For aviation professionals, this directive is crucial because the swashplate duplex bearing is a vital part of the main rotor control system. Detecting issues early prevents possible rotor failure, which can lead to catastrophic accidents. Compliance ensures operational safety and helps maintain regulatory certification for affected helicopters.
What To Do
Operators and maintenance organizations must perform the prescribed inspections on the swashplate duplex bearing within the specified intervals outlined in the document. Any findings of wear or damage must be addressed according to the maintenance instructions to remain compliant and ensure flight safety. Compliance deadlines, if any, should be strictly observed as per the directive's instructions.