Federal Register #FAA20263874

FAA Proposed Airworthiness Directives for Airbus SAS and Bombardier Aircraft – Repetitive HPV Clip Replacement and Inspection Requirements

This opportunity involves proposed airworthiness directives from the Federal Aviation Administration (FAA) targeting safety issues on Airbus SAS and Bombardier aircraft: - Government Buyer: - Federal Aviation Administration (FAA), Department of Transportation - OEMs Mentioned: - Airbus SAS (primary focus) - Bombardier, Inc. (secondary, for a separate directive) - Products/Services Requested: - Repetitive replacement of high-pressure bleed valve (HPV) clips on Airbus SAS A319, A320, and A321 series airplanes - No specific part numbers or quantities provided - Includes continued revision of the airplane flight manual (AFM) and minimum equipment list (MEL) - Prohibits installation of affected HPV parts - Allows replacement of affected HPV valves as an optional terminating action - Requires compliance with EASA AD 2025-0096 and operational procedures for engine bleed overpressure - General visual inspection for missing or under torqued fasteners on Bombardier BD 700-2A12 airplanes (secondary requirement) - Unique or Notable Requirements: - Mandates repetitive replacement of HPV clips to address butterfly seal retention clip rupture, which could lead to duct burst and loss of airplane control - Incorporates compliance times and procedures from EASA AD 2025-0096 - FAA invites public comments on the proposed directive - Locations: - FAA Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA 98198 - European Union Aviation Safety Agency (EASA), Cologne, Germany (regulatory reference) - Textron Aviation Inc., Wichita, KS (mentioned, not a place of performance)

Description

The FAA proposes to supersede Airworthiness Directive (AD) 2025-16-12, which applies to various Airbus SAS airplane models including A319, A320, and A321 series. The existing AD requires revising the airplane flight manual and minimum equipment list, allows replacement of affected high-pressure bleed valves (HPV) as an optional terminating action, and prohibits installation of affected parts. The proposed AD would continue these requirements and add a mandate for repetitive replacement of each affected HPV clip to address an unsafe condition involving HPV butterfly seal retention clip rupture that could lead to duct burst and potential loss of airplane control. Comments on the proposed AD are due by June 15, 2026.

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