EASA AD 2018-0221: Wings — Aileron Actuator Fittings — Inspection

What to do

Operators must perform the initial rototest inspection before exceeding 8,800 flight cycles or 64,700 flight hours, whichever occurs first, and repeat inspections at these intervals. If no cracks are found, new fasteners must be installed before the next flight. If cracks are detected, approved corrective actions from Airbus must be followed promptly. Incorporating Airbus modification 66431 is an optional terminating action that ends the need for repetitive inspections.

Summary

EASA Airworthiness Directive 2018-0221 is an airworthiness directive issued for Airbus A380-841, A380-842, and A380-861 aeroplanes, excluding those with Airbus modification 66431 incorporated in production. It mandates inspections of the aileron actuator fittings to detect cracks and requires corrective actions to maintain structural integrity of the ailerons. This directive addresses potential fatigue failures in fasteners that could lead to in-flight aileron detachment.

What changed

This new airworthiness directive introduces mandatory repetitive rototest inspections of the lower flange fastener holes on the aileron actuator fittings. It also provides instructions for corrective actions if cracks are found and offers an optional terminating modification involving reinforced aileron fittings to extend the fatigue life to the design service goal.

Why it matters

This directive is critical for operators and maintenance organizations to prevent possible in-flight detachment of aileron surfaces, which could severely reduce aircraft control and safety. Compliance ensures continued airworthiness and helps avoid costly damage or injury. It also clarifies inspection intervals and corrective procedures to maintain regulatory compliance.

What to do

Summary

What changed

Why it matters

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