EASA AD 2026-0166 — Fuselage – Splice of Frame X5295 – Inspection

Summary

EASA Airworthiness Directive 2026-0166 is an airworthiness directive affecting Airbus Helicopters EC 225 LP models with specific Airbus Helicopters modifications. It addresses an issue with the upper splice plates at frame X5295, where the material was incorrectly recorded as steel instead of aluminium, potentially compromising structural integrity. The directive mandates inspection and corrective actions to ensure proper maintenance and safety compliance.

What Changed

This new airworthiness directive introduces mandatory inspections of the upper splice plates at frame X5295 to verify their material composition. It requires updating aircraft logbooks and maintenance programs based on inspection findings and mandates corrective actions if discrepancies or mixed materials are found. Additionally, it references compliance with a previous AD if aluminium splice plates are confirmed.

Why It Matters

This directive is critical for aviation professionals because it addresses a potential structural safety risk due to incorrect material records, which could lead to loss of helicopter frame integrity. Operators and maintenance organizations must ensure inspections are performed timely to avoid unsafe conditions and regulatory non-compliance. It also ensures maintenance programs are accurate and up to date, supporting continued airworthiness.

What To Do

Operators of affected EC 225 LP helicopters must inspect the upper splice plates at frame X5295 within 110 flight hours after 2 September 2026, following Airbus Helicopters Alert Service Bulletin EC225-53-00-0001. If discrepancies or mixed materials are found, corrective actions must be completed before the next flight. If aluminium plates are confirmed, operators must verify applicability and compliance with EASA AD 2021-0075 and perform any required actions.