EWIS Target Group 1 & 2 — Initial Training

Overview

EASA AMC 20-22 initial training for personnel performing EWIS maintenance (Target Group 1) and maintenance inspections on EWIS (Target Group 2). Covers general practices, documentation, inspection, housekeeping, wire, and connective devices and their repair, with practical reference photographs and visual examples.

Course content is maintained against the latest applicable regulatory amendments reviewed as of 21 June 2026.

Syllabus

11 modules, completed in order — each with its keywords and objective.

1. 1

   Introduction & Course Objectives

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   Objective: Orient to the EWIS course objectives, target groups and assessment.

2. 2

   Why EWIS Matters — Background & Lessons Learned

   EWISaccidentsageing wiringlessons learned

   Objective: Explain why EWIS matters using accident history and lessons learned.

3. 3

   Key Definitions & Terminology

   EWIS definitionwireharnessterminology

   Objective: Define the key EWIS terms and what is included in the system.

4. 4

   Module A — General EWIS Practices

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   Objective: Apply general EWIS practices for safe handling and protection of wiring.

5. 5

   Module B — Wiring Practices Documentation

   wiring manualsSWPMstandard practicesdata

   Objective: Find and use wiring practices documentation and standard wiring practices.

6. 6

   Module C — Inspection

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   Objective: Inspect EWIS against defined criteria and recognise damage and degradation.

7. 7

   Module D — Housekeeping & Contamination Control

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   Objective: Apply housekeeping and contamination control to protect EWIS.

8. 8

   Module E — Wire

   wire typesinsulationratingsselection

   Objective: Identify wire types, ratings and selection considerations.

9. 9

   Module F — Connective Devices

   connectorsterminalssplicesgrounds

   Objective: Recognise connective devices and their correct condition and use.

10. 10

    Module G — Connective-Device Repair

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    Objective: Apply approved methods for connective-device repair.

11. 11

    References & Further Reading

    AMC 20-22SWPMreferences

    Objective: Locate the references and further reading underpinning EWIS work.

Final assessment

• Format: 12 multiple-choice questions drawn from the course question bank, with the options shuffled each attempt.
• Pass mark: 75%.
• Certificate: issued automatically on passing, according to AMC 20-22, AMC5 145.A.30(e).