Federal Register #2026-15365

FAA Directive: Bell 505 Helicopter Vertical Stabilizer Top End Cap Assembly Replacement and Inspection

This opportunity involves a Federal Aviation Administration (FAA) airworthiness directive targeting Bell Textron Canada Limited Model 505 helicopters. - Government Buyer: - Federal Aviation Administration (FAA), Department of Transportation - OEMs and Vendors: - Bell Textron Canada Limited (primary OEM) - Products/Services Requested: - Replacement of vertical stabilizer top end cap assembly with improved design (part number SLS704701101) - Initial and recurring inspections of existing vertical stabilizer top end cap assembly (part number SLS030701125) - Removal and replacement of cracked or damaged parts - Quantities: - Estimated 150 helicopters affected in the U.S. registry - 150 units for inspection and replacement - Unique/Notable Requirements: - Compliance with Transport Canada AD CF202532 - Recurring inspections required until improved part is installed - Terminating action upon installation of improved part - Applies to specific serial numbers of Bell 505 helicopters - Removal of unsafe parts from service - No other OEMs or vendors are mentioned - The directive references a similar AD for Airbus Canada Limited Partnership aircraft, but this opportunity is specific to Bell 505 helicopters

Description

The FAA is superseding Airworthiness Directive (AD) 2024-02-55 for certain Bell Textron Canada Limited Model 505 helicopters. The AD requires initial and recurring inspections of the vertical stabilizer top end cap assembly and corrective actions if cracks are found. The manufacturer introduced a new one-piece vertical stabilizer machined top end cap assembly, and this AD requires replacing the existing assembly with the improved design, which terminates recurring inspections. The AD is effective September 3, 2026, and addresses an unsafe condition that could result in loss of directional control of the helicopter.

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