EASA AD 2026-0193
Doors – Jettisonable Window Mechanism – Lubrication / Operational Test / Modification
Summary
EASA Airworthiness Directive 2026-0193 is issued for Airbus Helicopters H160-B models addressing issues with the jettisonable window mechanism. The directive mandates lubrication, operational testing, and modification of the locking fingers in the window jettisoning system to ensure proper emergency evacuation functionality.
What Changed
This directive supersedes EASA AD 2025-0009 and retains its requirements for repetitive lubrication and operational tests while introducing a new mandatory modification to improve the locking mechanism design. After modification, the affected parts no longer require repetitive maintenance actions.
Why It Matters
This AD is critical for operators and maintenance teams to prevent potential failure of the emergency window jettison function, which could hinder occupant evacuation during emergencies. Compliance ensures continued airworthiness and regulatory adherence, reducing safety risks associated with the locking mechanism.
What To Do
Operators of Airbus Helicopters H160-B must lubricate and test affected window locking parts within 110 flight hours or 3 months after 24 January 2025, then every 6 months until modification. The modification must be completed within 12 months after 23 October 2026, after which repetitive maintenance is no longer required. Installation of affected parts after modification is prohibited.
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