Electrical Wiring Interconnection Systems (EWIS)

2-day course | Virtual, Classroom & In-company Delivery
  • Classroom in London Gatwick
Next available course
Start Date Venue Cost Availability Book
20/06/2023 London Gatwick £860.00 More than 5 places Book
View all dates In-Company Info

Course overview

What is Electrical Wiring Interconnection System?

Electrical wiring interconnection system(EWIS) means any wire, wiring device, or combination of these, including termination devices, installed in any area of the aeroplane for the purpose of transmitting electrical energy, including data and signals between two or more intended termination points.

Course Overview

This course provides delegates with an overview of the development of enhanced aeroplane EWIS maintenance and the Enhanced Zonal Analysis Procedure.

Delegates will also learn about the technical aspects of typical EWIS installations, supporting inspection techniques and an introduction to AMC 20-22 Aeroplane EWIS training programmes.

Who should attend?

This course is suitable for individuals involved in EWIS, either in a regulatory oversight capacity, or within industry managing training on EWIS.

Key topics

This training course will include the following topics:

  • Safe handling of Aeroplane Electrical Systems
  • Line replaceable units (LRU)
  • Tooling
  • Troubleshooting procedures and electrical measurement
  • Construction and navigation of typical aeroplane wiring system overhaul or wiring practices manuals
  • Types of inspection
  • Human factors in inspections
  • Zonal areas and typical damage
  • Contamination sources, materials, cleaning and protection procedures
  • Correct identification of different wire types
  • Inspection criteria and damage tolerance
  • Repair and preventative maintenance procedures
  • Procedures to identify, inspect and find the correct repair for common types of connective devices found on typical aeroplanes
  • Procedures for replacement of all parts of common types of connective devices found on typical aeroplanes

Course objectives

At the end of this course, the participants will be able to:

  • Understand the basis of enhanced aeroplane EWIS maintenance
  • Understand the philosophies behind the Enhanced Zonal Analysis Procedure
  • Understand the broad technical aspects of enhanced EWIS inspection techniques
  • Demonstrate an overall knowledge of the elements needed in an effective EWIS training programme
  • Understand the regulatory expectations for effective delivery of initial and recurrent EWIS training in an approved organisation under their regulatory oversight


Delegates would benefit from having had exposure to, or experience of approved maintenance programmes, aircraft maintenance manuals, aircraft wiring diagrams, and other such instructions for continuing airworthiness.

Delivery Methods: Classroom and Virtual

This course can be delivered virtually or face-to-face in classroom at our London Gatwick training centre.

Browse the table below to select your preferred date, delivery method and location (classroom only). If you can not find your preferred form of delivery and date, please contact us.

Course type:

  • Web = Virtual online delivery using WebEx video conferencing. We have applied a 5% discount to all our virtual course deliveries. Unless stated otherwise, our virtual courses are streamed live, starting at 09:00 am (UK time).
  • Class = A face-to-face classroom course delivered in the location listed in the “venue” column. In light of COVID-19, please check your eligibility and our COVID-19 measures.
Review of course
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In-company delivery?

We can also tailor this training courses to suit an organisation’s individual training requirements. These bespoke training packages can be delivered virtually or onsite in a classroom at a client’s international location. Contact us for more information.

Course Type Course Name Start Date End Date Venue Cost Availability Book
Class Electrical Wiring Interconnection System - EWIS 20/06/2023 21/06/2023 London Gatwick £860.00 More than 5 places Book

Electrical Wiring Interconnection Systems (EWIS) Instructors

Electrical Wiring Interconnection Systems (EWIS) Instructors

Colin Greenwood

Colin Greenwood

Leading on Aviation Safety
Safety Management Systems – Introduction
Safety Management Systems – Principles and Applications
Safety Management (Advanced) – Evaluating Effectiveness
Safety Management Systems – Small Organisations
Just Culture for the Team
Just Culture for Responsible Managers
EASA Part 21 G Production Organisation Approval
EASA Part 145 Maintenance Training Approval
EASA Part M Continuing Airworthiness
Electrical Wiring Interconnection Systems

Colin is an Airworthiness specialist with nearly 40 years of experience working in aviation, including over 10 years with the UK CAA. Colin has experience in both military and civilian environments including aircraft & component production, continuing airworthiness for Aircraft Operator’s Certificate (AOC) holders and Non-Commercial Complex aircraft (NCC)/Private operations, maintenance of complex & non-complex fixed and rotary wing aircraft, engines and components, maintenance control, safety management, quality assurance (compliance monitoring), Safety Assessment of Foreign Aircraft (SAFA) training, management and consultancy. In addition, Colin has extensive experience as an auditor in Continuing Airworthiness, Maintenance & Production environments, under ICAO, EASA and other national regulatory requirements.

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UK Locations
Our Mailing Address Aviation House Gatwick Airport South West Sussex RH6 0YR T: +44 (0) 330 0224401 Our Registered Address Aviation House Beehive Ring Road Crawley West Sussex RH6 0YR
Malaysia Location
Malaysian Aviation Academy Department of Civil Aviation Jalan Pekeliling 2, 64050 Sepang Selangor, Malaysia T: +603 8777 9011
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