Federal Register #FAA20260730

FAA Airworthiness Directive for Airbus Helicopters Deutschland GmbH (AHD) MBB-BK 117 C-2 and D-2 Models

This procurement opportunity involves a new FAA airworthiness directive (AD) targeting Airbus Helicopters Deutschland GmbH (AHD) MBB-BK 117 C-2 and D-2 helicopter models due to a safety issue with the MS18027 type hook. - Government Buyer: - Federal Aviation Administration (FAA), Department of Transportation - Aircraft Certification Service, Compliance & Airworthiness Division - OEMs and Vendors: - Airbus Helicopters Deutschland GmbH (AHD) (primary OEM) - European Union Aviation Safety Agency (EASA) procedures referenced - Products/Services Requested: - Modification or replacement of the standard MS18027 type hook (P/N 42305283) on large hook damper assembly (P/N 44307480) - Option to replace with D-Lok hook (P/N 42315488) or modified large hook damper assembly (P/N 443074801) - Estimated 183 helicopters affected in the U.S. registry - Compliance with EASA AD 20250188 procedures - Unique/Notable Requirements: - Mandatory removal, modification, or replacement of affected hooks - Prohibition on installation of affected parts unless requirements are met - Specific inspection and compliance procedures - Restrictions on special flight permits - Estimated cost for modification: $3,630 per helicopter - Place of Performance/Delivery: - FAA offices in Westbury, NY and Fort Worth, TX - U.S. Department of Transportation Docket Operations, Washington, DC

Description

The FAA is issuing a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH (AHD) Model MBB-BK 117 C-2 and MBB-BK 117 D-2 helicopters. This AD addresses a safety issue where a certain part-numbered standard MS18027 type hook may experience localized yielding in the mating threads when assembled with higher assembly torques. The directive requires modifying and re-identifying the affected part or replacing it with a serviceable part, and prohibits installing the affected part unless specific requirements are met. The AD aims to prevent failure of the hook, which could lead to loss of the hoist load and injury to persons. The effective date of this AD is June 17, 2026.

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