Navigate / EASA

Appendix A to AMC 20-22 – EWIS Minimum Initial Training Programme for Group 1 and 2

ED Decision 2008/007/R

Target Group 1: Qualified staff performing EWIS maintenance.

Target Group 2: Qualified staff performing maintenance inspections on EWIS.

TARGET GROUP

1

2

A – GENERAL ELECTRICAL WIRING INTERCONNECTION SYSTEM PRACTICES

Know or demonstrate safe handling of aeroplane electrical systems, line replaceable units (LRU), tooling, troubleshooting procedures, and electrical measurement.

 

 

1.         Safety practices

X

X

2.         Electrostatic discharge sensitive (ESDS) device handling and protection

X

X

3.         Tools, special tools, and equipment

X

 

4.         Verifying calibration/certification of instruments, tools, and equipment

X

 

5.         Required wiring checks using the troubleshooting procedures and charts

X

 

6.         Measurement and troubleshooting using meters

X

 

7.         LRU replacement general practices

X

X

B – WIRING PRACTICES DOCUMENTATION

Know or demonstrate the construction and navigation of the applicable aeroplane wiring system overhaul or practices manual.

 

 

8.         Standard wiring practices manual structure/overview

X

X

9.         Chapter cross-reference index

X

X

10.       Important data and tables

X

X

11.       Wiring diagram manuals

X

X

12.       Other documentation as applicable

X

X

C – INSPECTION

Know the different types of inspections, human factors in inspections, zonal areas and typical damages.

 

 

13.       General visual inspection (GVI), detailed inspection (DET), special detailed inspection (SDI), and zonal inspection, and their criteria and standards

X

X

14.       Human factors in inspection

 

X

15.       Zonal areas of inspection

 

X

16.       Wiring system damage

X

X

D – HOUSEKEEPING

Know the contamination sources, materials, cleaning and protection procedures.

 

 

17.       Aeroplane external contamination sources

X

X

18.       Aeroplane internal contamination sources

X

X

19.       Other contamination sources

X

X

20.       Contamination protection planning

X

 

21.       Protection during aeroplane maintenance and repair

X

 

22.       Cleaning processes

X

 

E – WIRE

Know or demonstrate the correct identification of different wire types, their inspection criteria and damage tolerance, repair and preventative maintenance procedures.

 

 

23.       Wire identification, type and construction

X

X

24.       Insulation qualities and damage limits

X

X

25.       Inspection criteria and standards for wire and wire bundles

 

X

26.       Wire bundle installation practices

X

X

27.       Typical damage and areas found (aeroplane specific)

X

X

28.       Maintenance and repair procedures

X

X

29.       Sleeving

X

X

30.       Unused wires - termination and storage

X

X

31.       Electrical bonding and grounds

X

X

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.

 

 

32.       General connector types and identification

X

X

33.       Cautions and protections

X

X

34.       Visual inspection procedures

X

X

35.       Typical damage found

X

X

36.       Repair procedures

X

X

G – CONNECTIVE DEVICE REPAIR

Demonstrate the procedures for replacement of all parts of typical types of connectors found on the applicable aeroplane.

 

 

37.       Circular connectors

X

 

38.       Rectangular connectors

X

 

39.       Terminal blocks - modular

X

 

40.       Terminal blocks - non-modular

X

 

41.       Grounding modules

X

 

42.       Pressure seals

X

 

 

[Amdt 20/4]