Federal Register #FAA20263880

FAA Proposed Airworthiness Directive for Airbus Helicopters EC 155B and EC155B1

The Federal Aviation Administration (FAA) is proposing a new airworthiness directive (AD) for all Airbus Helicopters Model EC 155B and EC155B1 helicopters to address updated safety requirements. - Government Buyer: - Federal Aviation Administration (FAA), Department of Transportation - OEM Highlight: - Airbus Helicopters is the primary Original Equipment Manufacturer (OEM) affected by this directive - Products/Services Requested: - Revision of the airworthiness limitations section (ALS) of the maintenance manual or instructions for continued airworthiness - Update of the approved maintenance or inspection program for Airbus Helicopters EC 155B and EC155B1 - Compliance with EASA AD 20250191, which includes: - Replacement of components before exceeding life limits - Performance of maintenance tasks within specified thresholds and intervals - Notable Requirements: - Operators must revise maintenance documentation within 30 days of the final rule's effective date - The directive is based on safety findings from the European Union Aviation Safety Agency (EASA) - No specific part numbers or purchase quantities are listed, as this is a regulatory compliance action - The directive aims to prevent failure of critical parts and structural components that could lead to loss of control - Locations: - FAA offices in Fort Worth, TX and Westbury, NY are referenced as government facilities involved in the directive - The directive also references airspace over New Bedford, MA for related amendments

Description

The FAA proposes a new airworthiness directive (AD) for all Airbus Helicopters Model EC 155B and EC155B1 helicopters. This AD is prompted by the need for new or more restrictive airworthiness limitations to address an unsafe condition. It requires revising the airworthiness limitations section of the existing maintenance manual or instructions for continued airworthiness and the approved maintenance or inspection program. The goal is to prevent failure of certain parts and primary structural components that could result in loss of control of the helicopter. Comments on this proposed rule are invited until June 22, 2026.

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