Electrical Wiring Interconnection Systems (EWIS): EASA Part 145 Requirements
Course Overview
This course provides a comprehensive understanding of Electrical Wiring Interconnection Systems (EWIS) within the EASA Part 145 regulatory framework. It covers regulatory requirements, safety practices, inspection techniques, wiring standards, and maintenance procedures to ensure continued airworthiness and safe aircraft operations.
Course Modules
Module 1 – Introduction to EWIS
- 1.1 Background of EWIS
- 1.2 Industry Awareness & Lessons Learned
- 1.3 Evolution of EWIS
- 1.4 What is EWIS? - Definition and Scope
- 1.5 Elements of an Effective EWIS Program
- 1.6 Regulatory Recommendations and Requirements
Module 2 – EASA Regulatory Framework for EWIS
- 2.1 Introduction to EASA
- Overview of the European Union Aviation Safety Agency (EASA)
- Role and responsibilities
- 2.2 EASA Regulatory Framework
- Basic Regulations
- Regulation (EC) No 216/2008 - Former Basic Regulation
- Regulation (EU) 2018/1139 - Current Basic Regulation (Replacing 216/2008)
- Implementing Regulations
- Regulation (EU) No 748/2012 - Initial Airworthiness (Part-21)
- Regulation (EU) No 1321/2014 - Continuing Airworthiness (Part-M, Part-145, etc.)
- 2.3 EASA Regulations and Guidance Material on EWIS
- Certification Specifications
- CS-25 Subpart H : Defines design and certification requirements for EWIS on large aeroplanes.
- EASA Acceptable Means of Compliance (AMC)
- AMC 20-21 - Airworthiness and Continued Airworthiness of Electrical Wiring Interconnection Systems (EWIS)
- AMC 20-22 - EWIS Training Program
- AMC 20-23 - Development of Electrical Standard Wiring Practices Documentation
- Executive Director Decision
- Annex III to ED Decision 2008/007/R
- 2.4 EWIS Requirements Within the EASA Continuing Airworthiness System
- PART-21 : Design and Production Organisation Requirements
- PART-145 : Approved Maintenance Organisations
- PART-M : Continuing Airworthiness Management
Module 3 – General Electrical Wiring Interconnection System Practices
- 3.1 Safety Practices
- 3.2 ESDS Device Handling & Protection
- 3.3 Tools, special tools and equipment
- 3.4 Verify Calibration/Certification of Instruments, Tools & Equipment
- 3.5 Required wiring checks using Troubleshooting Procedures and Charts
- 3.6 Measurement & Troubleshooting Using Meters
- 3.7 LRU Replacement – General Practices
Module 4 – Wiring Practices Documentation
- 4.1 Standard Wiring Practices Manual (SWPM) Structure and Overview
- 4.2 SWPM Cross-Reference Index
- 4.3 SWPM Important Data and Tables
- 4.4 Wiring Diagram Manuals
- 4.5 Other Documentation as Applicable
Module 5 – Inspection
- 5.1 Types of Inspections
- 5.2 Criteria and Standards
- 5.3 Human Factors in Inspection
- 5.4 Zonal Areas of Inspection
- 5.5 Electrical Wiring Interconnection Systems (EWIS) Damage
Module 6 – Housekeeping
- 6.1 Aeroplane External Contamination Sources
- 6.2 Aeroplane Internal Contamination Sources
- 6.3 Other Contamination Sources
- 6.4 Contamination Protection Planning
- 6.5 Protection during Aeroplane Maintenance & Repair
- 6.6 Cleaning Processes
Module 7 – Wires
- 7.1 Wire Identification, Type & Construction
- 7.2 Insulation Qualities and Damage Limits
- 7.3 Inspection criteria and standards for wire and wire bundles
- 7.4 Wire Bundle Installation Practices
- 7.5 Typical Damage & Areas Found (aeroplane specific)
- 7.6 Maintenance & Repair Procedure
- 7.7 Sleeving
- 7.8 Unused Wires – Termination & Storage
- 7.9 Electrical Bonding & Grounds
Module 8 – Connective Devices
- 8.1 General Connector Types & Identification
- 8.2 Cautions & Protections
- 8.3 Visual Inspection Procedures
- 8.4 Typical Damage Found
- 8.5 Repair Procedures
Module 9 – Connective Devices Repair
- 9.1 Circular Connectors
- 9.2 Rectangular Connectors
- 9.3 Terminal Block – Modular
- 9.4 Terminal Block – Non-Modular
- 9.5 Grounding Modules
- 9.6 Pressure Seals
Module 10 – Case Studies
- 10.1 Case Studies on Aircraft Electrical and Wiring-Related Failures
- TWA Flight 800 (1996)
- Swissair Flight 111 (1998)
- Air Canada Flight 797 (1983)
Who Should Attend?
- Aircraft Maintenance Engineers and Technicians
- Part-145 Maintenance Organisation Personnel
- Quality and Safety Personnel
- CAMO Staff
- Aviation Students and Trainees
Final Assessment & Certification
Upon completion, participants will take a final assessment to demonstrate their understanding. A Certificate of Completion will be awarded to those who meet the passing criteria.
- Mode: Online
- Course Duration: 215 Minutes
- Validity: 365 days
- We carefully evaluate the candidates taking up this course. Email us at info@academyaviationonline.com and share your interest in taking up this course.