Federal Register #2026-21334

FAA proposes DRAIMS L4.3 airworthiness requirements for Airbus A330-941 aircraft

The Federal Aviation Administration proposes revised airworthiness requirements for certain Airbus A330-941 airplanes. - Government buyer and issuing agency: U.S. Department of Transportation, Federal Aviation Administration (FAA). - OEM: Airbus SAS, manufacturer of the affected aircraft; the proposal references European Union Aviation Safety Agency (EASA) AD 2025-0286. - Affected aircraft: 12 U.S.-registered Airbus A330-941 airplanes. Airbus A330-243, A330-243F, and A330-841 models are excluded. - Required action: install wiring and software to implement the digital radio and audio integrating management system (DRAIMS) L4.3 configuration. The modification addresses data synchronization failures that could cause loss of radio communications and related functions. - Existing airplane flight manual (AFM) and minimum equipment list (MEL) requirements remain in effect until the modification is completed; the proposal also limits installation of affected parts under specified conditions. - This is a proposed safety rule, not a solicitation for products or services.

Description

The Federal Aviation Administration proposes to supersede Airworthiness Directive 2025-09-07 for certain Airbus SAS Model A330-941 airplanes. The proposed directive would retain the existing airplane flight manual and minimum equipment list revision requirements and require a modification involving installation of wiring and software in the digital radio and audio integrating management system (DRAIMS) L4.3 configuration. It would also reduce the directive’s applicability and prohibit installation of affected parts under certain conditions. Comments are due December 3, 2026.

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