Blog

The Rationale for EWIS Training Requirements (EASA and FAA)

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May 08, 2025

Steven Bentley

Sofema Aviation Services (SAS) takes a view on the key aspects that drove the regulatory requirement for EWIS Training FAA & EASA Electrical Wiring Interconnection Systems (EWIS) training requirements reflect lessons learned from accidents, research findings, regulatory studies, and industry experience. The overarching rationale is to ensure the continued airworthiness and operational safety of commercial…

Engineering Perspective on EWIS Compliance – FAA, EASA CS-25, and AMC 20-21 Integration

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May 05, 2025

Steven Bentley

Sofema Aviation Services (SAS) considers key aspects related to EWIS Design Considerations Introduction As aircraft systems continue to evolve, the complexity and safety-critical nature of Electrical Wiring Interconnection Systems (EWIS) demand a robust and harmonised regulatory approach. Recognising this, both the Federal Aviation Administration (FAA) and the European Union Aviation Safety Agency (EASA) have issued…

Role of Information Security Management System (ISMS) in Aviation Safety

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May 02, 2025

Steven Bentley

Sofema Aviation Services (SAS) Considers the Role of ISMS in Aviation Safety – EASA Regulatory Context and European Operations Introduction An Information Security Management System (ISMS) plays a critical role in ensuring aviation safety, particularly in the context of increasing digitalization and interconnected systems within the European aviation sector. An effective ISMS is essential for…

Assessing ISMS Vulnerabilities in the Supply Chain and IT Infrastructure

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April 30, 2025

Steven Bentley

Sofema Aviation Services (SAS) Considers key issues related to the assessment of vulnerabilities within the operational supply chain Introduction To mitigate risks related to supply chain and IT infrastructure vulnerabilities in an EASA-compliant Information Security Management System (ISMS) under Regulation (EU) 2023/203, a structured and proactive approach is essential. Consider the following: Understanding the Nature…

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