EWIS Safety Concept

Specialised Training Course

The aim of this course is to enhance the knowledge about EWIS safety aspects for the aircraft initial and continued airworthiness.





  • Language: English
  • Duration: 1 day
  • Time: 09:00 – 12:00 & 13:00 -16:00

Course Objectives

The course aims to fulfil the following pedagogical objectives:

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

Course Curriculum

  • Introduction to EWIS and its safety aspects towards regulatory requirements.
  • Overview of EASA CS 25, Subpart H, associated AMCs and the compliance requirement.
  • Standard practice in design, implementation, modification on the EWIS aircraft.
  • Consideration of EASA AMC 20-21, AMC 20-22 & AMC20-23
  • Guidance and procedures in developing EWIS ICA and supplement.
  • Developing inspection and maintenance program using EZAP.

Duration, Date and Location

Duration: 1 day
Location: Bern or Online
Time: 09:00 - 12:00 & 13:00 -16:00

Suitable For

  • Part 21J (DOA) Office of Airworthiness, Compliance Verification Engineers, design engineers and any individual involved in certification of EWIS aircraft modification.
  • Part 21G (POA), Qualify Manager, Production Engineers, and any individual involved in production / certification of EWIS aircraft modification.
  • Alternate Part 21J (ADOA) applicants who involve in design & modification (minor / STC) of large aircrafts, appliances and its certification process and procedures
  • Part 145 large aircraft inspectors, certifying staff, and continued airworthiness managers.
  • Any individual, consultants, or organizations that involve in minor/STC modification and/or repair in EWIS aircraft


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

Complication with EASA Regulation of

  • EASA, Certification Specifications and Acceptable Means of Compliance for Large Aeroplanes CS-25, Subpart H, latest amendment.
  • EASA AMC 20-21, AMC 20-22 & AMC20-23
  • FAA AC 25.1701 – 1, Certification of Electrical Wiring Interconnection Systems on Transport Category Airplanes.