Federal Register #FAA20263864

FAA Airworthiness Directive for Bombardier BD-700 Brake Control Unit Replacement

This opportunity involves a proposed airworthiness directive from the Federal Aviation Administration (FAA) targeting Bombardier BD-700-1A10 and BD-700-1A11 airplanes: - Government Buyer: - Federal Aviation Administration (FAA), Aircraft Certification Service, Operational Safety Branch - OEMs and Vendors: - Bombardier, Inc. (primary aircraft OEM) - Crane Aerospace & Electronics (manufacturer of brake control units) - Products Requested: - Inspection for brake control unit (BCU) part number GW41571257 (Crane P/N 429653) - Replacement with BCU part number GW41571259 (Crane P/N 429654) - Applies to approximately 42 U.S.-registered aircraft - Unique Requirements: - Prohibition on installation of affected BCUs (GW41571257/Crane P/N 429653) - Compliance with Transport Canada AD CF-2022-53 - Addresses safety risk of uncommanded brake pressure and tire burst during landing - Places of Performance and Delivery: - FAA Airworthiness Products Section, Operational Safety Branch, Des Moines, WA - Transport Canada National Aircraft Certification, Nepean, Ontario, Canada - No additional service line items or products beyond the brake control units - No specific contract duration; compliance required within specified times after directive adoption

Description

The FAA proposes a new airworthiness directive (AD) for certain Bombardier, Inc. Model BD-700-1A10 and BD-700-1A11 airplanes. This AD is prompted by an in-service event where a main landing gear tire burst upon landing. The directive requires inspection to determine if an affected brake control unit (BCU) is installed and replacement of affected BCUs. It also prohibits the installation of affected parts to address the unsafe condition related to uncommanded brake pressure during landing.

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