Federal Register #2026-15411

FAA Airworthiness Directive: EEC Software Update for Airbus Canada BD-500 Series Aircraft

The Federal Aviation Administration (FAA), under the Department of Transportation, has issued an airworthiness directive (AD) for Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11 airplanes. - Government Buyer: - Federal Aviation Administration (FAA) - Aircraft Certification Service, Compliance & Airworthiness Division - OEMs Involved: - Airbus Canada Limited Partnership (airframe) - Bombardier, Inc. (previous type certificate holder) - Pratt & Whitney (PW1500G engines and EEC software) - Products/Services Requested: - Installation of Electronic Engine Control (EEC) software update version 2.12.1 (part number 532415815) or later on both engines of each affected aircraft - Revision of the airplane flight manual to reflect updated procedures - Notable Requirements: - The directive addresses safety concerns related to engine bleed duct leaks that could cause dual engine failure - Operators may comply by either modifying or replacing the EEC to achieve the required software update - The AD references compliance with Transport Canada AD CF202512 - Applies to 152 U.S.-registered airplanes - The directive allows for future EEC software versions to be used for compliance - No specific hardware procurement or purchase quantities are listed beyond the software update requirement

Description

The FAA is superseding AD 2025-06-01 for Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11 airplanes. This directive requires revising the flight manual and installing an electronic engine control software update to address unsafe conditions related to engine bleed duct leaks. The AD continues to require previous actions and removes certain airplanes from applicability. It becomes effective on September 3, 2026.

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