Appendix B to AMC 20-22 –
EWIS Minimum Initial Training Programmefor Group 3 through 8
ED Decision 2008/007/R
Target Group 3: Qualified staff performing electrical/avionic engineering on in-service aeroplane.
Target Group 4: Qualified staff performing general maintenance/inspections not involving wire maintenance (LRU change is not considered wire maintenance)
Target Group 5: Qualified staff performing other engineering or planning work on in-service aeroplane
Target Group 6: Other service staff with duties in proximity to electrical wiring interconnection systems
Target Group 7: Flight Deck Crew
Target Group 8: Cabin Crew
TARGET
GROUPS |
3 |
4 |
5 |
6 |
7 |
8 |
A – GENERAL ELECTRICAL WIRING INTERCONNECTION SYSTEM PRACTICES Know or demonstrate the safe handling of aeroplane electrical systems, line replaceable units (LRU), tooling, troubleshooting procedures, and electrical measurement. |
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1. Safety practices |
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X |
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X |
X |
X |
2. Electrostatic discharge sensitive (ESDS) device handling and protection |
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X |
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7. LRU replacement general practices |
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X |
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B – WIRING PRACTICES DOCUMENTATION Know or demonstrate the construction and navigation of the applicable aeroplane wiring system overhaul or practices manual. |
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8. Standard wiring practices manual structure/overview |
X |
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9. Chapter cross-reference index |
X |
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10. Important data and tables |
X |
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11. Wiring diagram manuals |
X |
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12. Other documentation as applicable |
X |
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C – INSPECTION Know the different types of inspections, human factors in inspections, zonal areas and typical damages. |
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13. General visual inspection (GVI), detailed inspection (DET), special detailed inspection (SDI), and zonal inspection, and their criteria and standards |
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X |
X |
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14. Human factors in inspection |
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X |
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15. Zonal areas of inspection |
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X |
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16. Wiring system damage |
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X |
X |
Low level |
Low level |
Low level |
D – HOUSEKEEPING Know the contamination sources, materials, cleaning and protection procedures. |
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17. Aeroplane external contamination sources |
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X |
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X |
X |
X |
18. Aeroplane internal contamination sources |
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X |
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X |
X |
X |
19. Other contamination sources |
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X |
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X |
X |
X |
20. Contamination protection planning |
X |
X |
X |
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21. Protection during aeroplane maintenance and repair |
X |
X |
X |
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22. Cleaning processes |
X |
X |
X |
X |
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E – WIRE Know or demonstrate the correct identification of different wire types, their inspection criteria and damage tolerance, repair and preventative maintenance procedures. |
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23. Wire identification, type and construction |
X |
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24. Insulation qualities and damage limits |
X |
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25. Inspection criteria and standards of wire and wire bundles |
X |
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26. Wire bundle installation practices |
X |
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27. Typical damage and areas found (aeroplane specific) |
X |
X |
X |
Low level |
Low level |
Low level |
28. Maintenance and repair procedures |
X |
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29. Sleeving |
X |
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30. Unused wires - termination and storage |
X |
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31. Electrical bonding and grounds |
X |
X Bond |
X |
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F – CONNECTIVE DEVICES Know or demonstrate the procedures to identify, inspect, and find the correct repair for typical types of connective devices found on the applicable aeroplane. |
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32. General connector types and identification |
X |
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33. Cautions and protections |
X |
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34. Visual inspection procedures |
X |
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35. Typical damage found |
X |
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36. Repair procedures |
X |
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[Amdt 20/4]
EASA EWIS training mandates initial programs for aviation personnel (groups 3-8) covering electrical wiring interconnection systems. Training includes safety, documentation, inspection, housekeeping, wire management, and connective devices. Specific training elements vary based on job function, ensuring personnel competence in maintaining aircraft electrical systems.
* Summary by Aviation.Bot - Always consult the original document for the most accurate information.
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