EWIS Safety Concept

Historical introduction

The legacy page describes the aim of the course as enhancing knowledge about EWIS safety aspects for aircraft initial and continued airworthiness.

Historical objectives

• Introduction of EWIS and the regulatory background
• Design and modification implementation concept for systems and components on EWIS aircraft
• Guidance to regulatory requirements for development of EWIS maintenance and inspection procedures
• Certification process and risk assessment on design and modification of EWIS aircraft
• Purpose and development of EWIS ICA
• Improve and enhance EWIS safety in aircraft wiring

Historical curriculum

• Introduction to EWIS and its safety aspects toward regulatory requirements
• Overview of EASA CS 25, Subpart H, associated AMCs and the compliance requirement
• Standard practice in design, implementation and modification on EWIS aircraft
• Consideration of EASA AMC 20-21, AMC 20-22 and AMC 20-23
• Guidance and procedures in developing EWIS ICA and supplement
• Developing inspection and maintenance program using EZAP

Historical suitable-for list

• Part 21J (DOA) Office of Airworthiness, Compliance Verification Engineers, design engineers and other individuals involved in certification of EWIS aircraft modification
• Part 21G (POA), Quality Manager, Production Engineers and other individuals involved in production / certification of EWIS aircraft modification
• Alternate Part 21J (ADOA) applicants involved in design and modification (minor / STC) of large aircraft, appliances and the certification process and procedures
• Part 145 large-aircraft inspectors, certifying staff and continued-airworthiness managers
• Individuals, consultants or organisations involved in minor / STC modification and/or repair in EWIS aircraft

Historical prerequisite context

• Part 21 J & G basic knowledge
• EASA / FAA / JAR 25 basic knowledge

Historical regulatory / reference context

• EASA Certification Specifications and Acceptable Means of Compliance for Large Aeroplanes CS-25, Subpart H, latest amendment referenced on the legacy page
• EASA AMC 20-21, AMC 20-22 and AMC 20-23
• FAA AC 25.1701-1 – Certification of Electrical Wiring Interconnection Systems on Transport Category Airplanes