Sofema Aviation Services (SAS) Considers essential differences in design philosophy between FAR/CS-23 (small aircraft – typically ≤ 19 passengers or ≤ 12,500 lbs MTOW) and FAR/CS-25 (transport category aircraft), with a focus on the most technically rigorous, regulatory-aligned, and safety-driven perspective Introduction The design philosophy of CS/FAR-23 aircraft focuses on simplification, affordability, and accessibility, particularly…

Sofema Online is pleased to introduce a specialized online training solution designed to support third-country maintenance organizations holding UK CAA Part 145 approval. This bundled program includes UK CAA Part 66 Module 9 (Human Factors) and Module 10 (Aviation Legislation), providing a cost-effective and convenient path to compliance. Register here and Save €157 – Get…

Sofema Aviation Services (SAS) considers key aspects related to EWIS Design Considerations Electrical Wiring Interconnection Systems (EWIS) are a critical safety component of modern aircraft. Historically overlooked or treated as secondary to other systems, poor EWIS design has contributed to multiple catastrophic failures (TWA 800 – Swissair 111 –United Airlines (UAL) Flight 811 usually with…

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…