Federal Register #2026-15409

FAA Airworthiness Directives for Bombardier, Pilatus, and Leonardo Aircraft – Inspections and Component Replacements

This opportunity involves new airworthiness directives (ADs) issued by the Federal Aviation Administration (FAA), part of the Department of Transportation, targeting specific aircraft models from Bombardier, Pilatus, and Leonardo. - Government Buyer: - Federal Aviation Administration (FAA), Department of Transportation - Aircraft Certification Service - Primary OEMs: - Bombardier, Inc. (BD-700-1A10 and BD-700-1A11 airplanes) - Pilatus Aircraft Ltd. (PC-12/47E airplanes) - Leonardo S.p.A. (AW189 helicopters) - Products/Services Requested: - For Bombardier aircraft: - Inspection and replacement of brake control units (BCUs) - Inspect for BCU part number GW41571257 (Crane P/N 429653) - Replace with BCU part number GW41571259 (Crane P/N 429654) - Prohibition on installation of affected BCUs - Applies to 42 US-registered aircraft - For Leonardo helicopters: - Repetitive inspection and possible replacement of ejector ducts - Left-hand ejector duct (P/N 8G7810P00131) - Right-hand ejector duct (P/N 8G7810P00231) - Addresses risk of duct cracking - For Pilatus aircraft: - Inspection and corrective action for engine temperature system issues - Prevents turbine failure - Unique or Notable Requirements: - Compliance may be achieved via maintenance record review if part numbers can be conclusively determined - ADs are effective on a specified future date and require compliance within defined timeframes - No specific purchase quantities provided; actions apply to all affected aircraft as identified in the directives - Emphasis on safety and prevention of hazardous incidents (e.g., tire bursts, turbine failure, duct cracking)

Description

The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model BD-700-1A10 and BD-700-1A11 airplanes. This AD was prompted by an in-service event where a main landing gear tire burst upon landing. It requires an inspection to determine if an affected brake control unit (BCU) is installed and replacement of affected BCUs. The AD also prohibits the installation of affected parts. The effective date is September 3, 2026.

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