EWIS for Groups 1 & 2 – 2 Days


The origins of the requirement for EWIS Training go back to a number of incidents that have had a catastrophic effect on the industry with instances of in-flight smoke and fire events in which contaminants were ignited by electrical faults which allowed a fire to be sustained and spread. Considerable research was conducted by The FAA and the National Transportation Safety Board (NTSB) together with the European Stakeholders. The outcomes were conclusive and determined the specific need for EWIS Training. Electrical Wiring Interconnect System EWIS Training was issued as an EASA requirement in the summer of 2008. There is much confusion across the industry as to the requirements to comply with the need for training EWIS within the Part 145 and Part M environment. AMC 20-22 makes It very clear as to the requirements which are to be complied with to ensure the organization remains in conformity with EASA regulatory requirements. Ultimately in accordance with the terms of the approval issued to Operators and MROs, It is the Operators and Maintenance Organisation Responsibility to comply with the requirements of Electrical Wiring Interconnect Systems working practices and procedures including specifically EWIS training.

Sofema Aviation Services is pleased to offer a 2 Day in company Training to allow you to manage and deliver your own EWIS training to ensure compliance with the requirements of AMC 20-22. The Full EWIS Electric Wiring Interconnect System training is specifically targeted for Groups 1 and 2 and covers a detailed understanding of the specific requirements. Effective: 05/09/2008 Ref AMC 20-21 AMC 20-22 AMC 20-23 Annex III to ED Decision 2008/007/R of 29/08/2008.

Who Is The Course For?

The course is primarily focused on the needs of the EASA Part 145 and EASA Part 147 Instructors to be compliant with the obligation to develop and deliver In-Company EWIS Training Courses.

The course will also be of interest to persons who are interested in becoming Aviation Technical Instructors (Both EASA Part 147 and EASA Part 145) or wishing to hone existing skills.

What is the Benefit of this Training – What will I learn?

a) Understand the structure, composition, and impact of EWIS Regulatory Requirements
b) Understand the best use of instructional tools and techniques to enhance instruction
c) Understand techniques to optimize and deliver practical presentations
d) Focus on the development of your communication skills.
e) Developing effective visual aids and supporting materials
f) Learn how to motivate participants and maintain attention
g) How to ensure participants’ active involvement throughout the training.
h) Consider group learning and collaborative learning techniques

Detailed Content / Topics – The following Subjects will be addressed

– Introduction
– Acronyms
– Terminology
– EWIS Background
– Swissair 111 / BA 737-436, G-DOCH
– AMC 20-21
– Inspection of EWIS
– Development of EWIS Inspection
– AMC 20-8 – Mandatory Reporting
– Standard Practices
– Tools Special Tools & Equipment
– Calibration & Certification Tools & Equipment
– Wiring Checks and TSM (Trouble Shooting Manual)
– Using Meters
– LRU Replacement General Practice
– Wiring Practice Documentation
– Minimum ESWPM Content
– Inspection
– Human Factors
– Zonal Inspection and Levels
– EWIS Areas of Concern
– Housekeeping
– Identification of Wiring
– Inspection of Wiring
– Development of Continuation Training
– Inspection and Repair of Connective Devices

If you wish this training and guidance support can be developed to allow you to develop the internal delivery of a fully compliant EWIS program this may include the provision of In-Company Training material and a license to allow you to deliver the material within your own organization.

Target Groups

This Training is specifically aimed at Target Groups 1 and 2 personnel who perform EWIS inspection and Personnel who perform EWIS maintenance


A background in an aviation environment.

Learning Objectives

After attending this course, participants should be able to understand of the specific requirements, having in mind that it is required to develop this training further within the organization particularly to reflect the organization’s aircraft types and wiring practices.

Certificate Wording

Understanding Background and Concepts of EWIS, Detailed Understanding of the Industry Issues. An overview of EASA & FAA Regulations, EWIS Terminology, Continuing Airworthiness Management of EWIS.

What do People Say About Sofema Aviation Services Training?

“The material of the course would be very useful for my future practices.”
“Great examples are given by the instructor.”
“I think this course was very interesting and useful.”
“The learning climate was really good and appropriate”


2 days – Each day will commence at 09.00 and finish at 17.00, with appropriate refreshment breaks.
To register for this training, please email office@sassofia.com or Call +359 28210806

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