EWIS For Targets 3-5

EWIS 3–5 Training Course

Electrical Wiring Interconnection System (EWIS)

This comprehensive EWIS training course covers Modules 3 to 5 in alignment with EASA and industry standards. Designed for qualified maintenance engineers and technical personnel, it provides vital safety and operational knowledge for working around aircraft electrical systems.

Who Should Attend:

• Target Group 3 & 4: Licensed engineers or technicians performing general maintenance or inspections (excluding direct wire work).

• Target Group 5: Engineering and planning staff working on in-service aircraft.

Course Highlights:

• Understanding EWIS-related hazards and safety practices

• Correct use of maintenance documentation and LRU (Line Replaceable Unit) replacement procedures

• Safe handling of Electrostatic Sensitive Devices (ESDs)

• Application of ground power and live circuit precautions

• Warnings, cautions, and bonding requirements

• Cleaning procedures, contamination control, and wiring inspections

• Enhanced Zonal Analysis Procedure (EZAP) and Human Factors

• Lessons from real-world incidents including Lufthansa, ABX Air, and TWA Flight 800

Assessment & Certification:

Interactive content with knowledge checks throughout. A certificate of training is issued upon successful completion.

Why This Course Matters:

Electrical wiring is now treated as a critical aircraft system. This training ensures your personnel understand how to handle EWIS safely, preventing costly damage and enhancing airworthiness compliance.