Federal Register #FAA-2026-7226

FAA Airworthiness Directive: Door Locking Mechanism Modifications for Airbus Helicopters EC130B4

The Federal Aviation Administration (FAA), under the Department of Transportation, is proposing a new airworthiness directive (AD) for all Airbus Helicopters Model EC130B4 helicopters to address safety concerns with door locking mechanisms. - Government Buyer: - Federal Aviation Administration (FAA) - Office: Aircraft Certification Service, Compliance & Airworthiness Division - OEM Highlight: - Airbus Helicopters is the primary Original Equipment Manufacturer (OEM) involved - Products/Services Requested: - Modification of the swinging door star support and sliding door star support stringer on all EC130B4 helicopters - Installation of a reinforcing bracket and replacement of rod ends to strengthen the door locking mechanisms - No specific part numbers provided; modification applies to 214 helicopters in the U.S. registry - Unique/Notable Requirements: - Compliance required within 460 hours time-in-service (TIS) after the directive's effective date - Prohibits installation of affected composite doors unless modifications are completed - Must follow procedures outlined in European Union Aviation Safety Agency (EASA) AD 2024-0232 - Specific inspection methods required, including prohibition of Type 2 colored dye penetrant for inspections - Estimated cost per helicopter: $2,342 (labor and parts) - No discrete product procurement; focus is on mandated modifications and compliance actions

Description

The FAA proposes a new airworthiness directive for all Airbus Helicopters Model EC130B4 helicopters due to reported weaknesses in the locking mechanisms on the left-hand side swinging and sliding door. The directive requires modifying the swinging door star support and sliding door star support stringer. It also prohibits installing an affected composite door on any helicopter unless specific requirements are met. The purpose is to address the unsafe condition related to door locking mechanisms and ensure passenger safety during emergencies.

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