EWIS Group 1 & Group 2 – Practical Instructor Training – 1 Day


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 the requirements 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 Operator’s and Maintenance Organisation Responsibility to comply with the requirements of Electrical Wiring Interconnect Systems working practices and procedures including specifically EWIS training.

EWIS Theory training is only part of the total picture, for the most effective management of EWIS, it is necessary to have competent persons who are able to deliver appropriate in-company practical training.

Practical elements are additional and can be performed on-site by the client as part of in-house preparation – alternatively, an additional day can be added to the onsite program for additional support (not available with Webinar Delivery).

Who is this course for?

The course is primarily focused on the needs of Quality Auditors and managers of competence.

Detailed Content / Topics – The following Subjects will be addressed 

-EWIS Practical Training Considerations
-Swissair 111 / BA 737-436
-Inspection of EWIS
-Standard Practices
-Tools Special Tools & Equipment
-LRU Replacement General Practice
-Wiring Practice Documentation
-Human Factors Zonal Inspection and Levels
-EWIS Areas of Concern
-Identification of Wiring
-Inspection of Wiring
-Development of Continuation Training

Target groups

Highly Experienced Avionics Engineers who have completed and passed EWIS training, may be of interest to Quality Auditors and managers of competence.


A background in an aviation maintenance environment.

Learning Objectives

The course will introduce the delegate to practical training skills and provide the confidence which can be developed to deliver effective EWIS Practical Training that will satisfy the requirements.

An essential element then of benefiting from this training is to focus on the issues, how they relate to our work place, and what we need to do to address them.

What do People Say About Sofema Aviation Services Training?

“This training offers very good explanations of difficult topics.”
“All aspects were useful, the examples were great.”
“This training helped me to develop some new skills.”
“The instructor is very resourceful and intelligent.”


1 Day Theory includes 4 hours Practical – Typically the theory group will consist of 12 persons and the practical group will consist of a maximum of 4 -6 persons so splitting into 2 groups is feasible.

To register for this training, please email team@sassofia.com or Call +359 28210806

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