Specialised Training

EWIS Electrical Wiring Interconnection System

Explore available information about this specialised aviation-training topic, then confirm current availability, delivery, prerequisites, and scheduling with WeFly.

Aircraft electrical maintenance specialists inspecting wiring bundles and connectors in an aircraft equipment bay
Illustrative imagery supports the course topic.
Course context

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Course details

What earlier WeFly course information describes.

Use these details to understand the course topic and previous delivery context. Time-sensitive items should be confirmed before enrolment or operational use.

01

Historical introduction

The legacy page describes an overview of rulemaking in regard to EWIS and a reminder of standard 'best practices' regarding electrical wiring interconnections.

02

Historical objectives

The legacy page states that after this one-day training, participants would be able to properly evaluate EWIS and effectively use the manufacturer's AMM Chapter 20 and Electrical Standard Wiring Practice Manual (EWSPM).

It states that the course provided knowledge intended to support understanding and interpretation of EWIS concepts from regulatory requirements and manufacturers' maintenance documentation.

The training was described as guidance for personnel in target groups 1–6 as defined in AMC 20-22, including people directly involved in maintenance and inspection of EWIS as well as personnel performing general maintenance activities in close proximity to EWIS.

03

Historical curriculum

  • Familiarisation with the elements of EWIS
  • Overview of the history and background and recognition of elements requiring consideration in relation to EWIS
  • Overview of EASA and FAA regulatory requirements
  • Overview of Subpart H to EASA CS 25
  • Overview of EASA AMC guidance material AMC 20-21, 20-22 and 20-23
  • Overview of the impact of EWIS on Part-CAMO continuing-airworthiness management and Part-145 maintenance on affected aircraft and components intended to be fitted thereto
  • General electrical wiring interconnection system practices
  • Wiring-practice documents such as EWSPM
  • Standard practice for electrical installation using EWIS standards
  • Connecting devices
  • Inspection standards and proposed corrective actions based on manufacturers' EWSPM standards
  • Review of the MRB Process and development of the Enhanced Zonal Analysis Procedure (EZAP)
04

Historical suitable-for list

  • EASA Part-145 Maintenance Organisations personnel performing aeroplane maintenance or inspections on EWIS and/or systems or structures in close proximity to EWIS
  • EASA Part-CAMO Continuing Airworthiness Management Organisations
  • Quality Assurance and Competent Authority Members
05

Historical prerequisite context

The legacy page states that there were no prerequisites, but that previous attendance of the Fuel Tank Safety Course was beneficial.

06

Historical regulatory / reference context

General Acceptable Means of Compliance for Airworthiness of Products, Parts and Appliances (AMC-20)

ED Decision 2008/007/R (AMC 20-22) Appendix A

Earlier course details

Dated values for context — not current booking details.

These values appeared in earlier course material. Confirm the current values with WeFly before using them for booking, compliance, or planning.

Earlier course detail

Duration

1 day
Earlier course detail

Language

German-English
Earlier course detail

Historical location/delivery

Bern or Online
Earlier course detail

Legacy delivery indicators

Instructor-Led: yes; e-Learning: yes; Exam: no; Certificate: yes
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