Main Rotor — Swashplate Assembly — Modification
- Published
- Effective
- Replaces
- 2024-0168
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected AS 332 helicopters must complete the required modifications within 36 months after 5 September 2024, including replacing or modifying the rotor shaft and swashplate assemblies as per the revised Airbus Helicopters service bulletins. Additionally, Group 3 helicopters must verify or apply anti-corrosion agent within 6 months after 2 June 2025. Installation of only post-mod 0728849 configuration parts is permitted from the effective date.
Summary
EASA Airworthiness Directive 2025-0116 is issued for Airbus Helicopters AS 332 C, C1, L, L1, and L2 models, addressing the main rotor swashplate assembly. The directive mandates modifications to the swashplate assembly to prevent failure of the scissors link caused by ball joint-cups assembly seizure. This AD ensures continued airworthiness and safe operation of affected helicopters.
What changed
EASA Airworthiness Directive 2025-0116 supersedes AD 2024-0168 and introduces additional requirements including the application of anti-corrosion agent during installation of parts. It revises the modification instructions by Airbus Helicopters Alert Service Bulletin AS332-62.00.77 to include this step and extends compliance to different helicopter groups with specific modification deadlines.
Why it matters
This directive is critical for aviation professionals as it addresses a potential unsafe condition that could lead to loss of control of the helicopter due to failure in the main rotor swashplate assembly. Operators and maintenance organizations must comply to ensure rotor integrity and flight safety. Compliance helps avoid in-flight failures and regulatory penalties.
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