Main Rotor – Swashplate bearing – Inspections
Superseded. Comply with 2024-0229R1, which replaces this document.
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must perform initial inspections within 15 flight hours or before the next cleaning of the swashplate bearing, then continue inspections at intervals not exceeding 15 flight hours. They must regularly analyze vibration health monitoring data and verify grease type used on the bearing. Any abnormalities require immediate corrective actions, including possible replacement of the main rotor mast assembly before further flight.
Summary
EASA Airworthiness Directive 2023-0222-E is an emergency directive addressing Airbus Helicopters H160-B models. It mandates inspections and monitoring of the swashplate bearing, specifically those with Part Number U623A20T1001, due to premature degradation risks. The directive includes requirements for vibration health monitoring, grease identification, and corrective actions to prevent potential control loss of the helicopter.
What changed
This new emergency airworthiness directive introduces repetitive inspections and vibration monitoring of the swashplate bearing on H160-B helicopters. It also specifies approved greasing procedures and requires replacement of the main rotor mast assembly if discrepancies are found. The directive corrects the affected part number definition and establishes interim safety measures pending further action.
Why it matters
This directive is critical for aviation professionals to ensure the continued safe operation of H160-B helicopters by preventing swashplate bearing failure. Operators and maintenance teams must adhere to the inspection and monitoring requirements to detect early degradation and avoid potential control issues. Compliance helps maintain airworthiness and reduces the risk of in-flight failures.
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