Main Rotor – Rotating Swashplate Yokes – Inspection / Rework / Service Life Limit
Superseded. Comply with 2024-0125R1, which replaces this document.
- Published
- Effective
- Deadline
- Replaces
- 2019-0074R1
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must perform initial and repetitive inspections of the affected swashplate yokes within specified flight hour or calendar day intervals depending on part age group. Corrosion found during inspections must be reworked before further flight, and any cracks require immediate part replacement. All affected parts must be replaced before exceeding 13 years since manufacture, with compliance times detailed in the directive.
Summary
EASA Airworthiness Directive 2023-0042 is issued for Airbus Helicopters EC 225 LP models, addressing the inspection, rework, and service life limits of the main rotor rotating swashplate yokes (Part Numbers 332A31-3074-00 and 332A31-3074-01). This directive mandates inspections and corrective actions to prevent cracks caused by environmental assisted cracking, which could lead to structural failure and loss of helicopter control.
What changed
This directive supersedes EASA AD 2019-0074R1 and introduces reduced compliance times for initial inspections of the swashplate yokes and yoke areas. It also amends the definition of serviceable parts, introduces grouping of affected parts based on age, and enforces a service life limit requiring part replacement before 13 years since manufacture.
Why it matters
The directive is critical for operators and maintenance organizations to ensure the structural integrity of the main rotor swashplate yokes, preventing potential catastrophic failures. Compliance with the inspections and service life limits helps maintain airworthiness and safety, avoiding unplanned downtime and costly repairs due to undetected cracking or corrosion.
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