CAMO, Maintenance, Safety & Compliance
EWIS - Group 1 & 2
Self-paced online training with an interactive protected player, a multiple-choice exam, and a certificate issued instantly on passing.

Training type
EWIS Group 1 & 2 - interactive presentation + exam. Program in accordance with defined syllabus established in AMC 20-22 for EASA Part CAMO and EASA Part 145 maintenance personnel.
About the course
EWIS refers to the principles which apply to aeronautical design, certification, training, operations and maintenance whilst seeking to ensure safe activities in engineering, maintenance and documentation, and to expose possible problems of wiring interconnection systems on new and old aircraft types.
Many investigations of accidents/incidents in aviation have revealed EWIS to be an important element in the chain of unfortunate events.
Course contents (syllabus)
- 1A - General EWIS practices
- Safety practices
- Electrostatic discharge sensitive (ESDS) device handling and protection
- Tools, special tools and equipment
- Verifying calibration / certification of instruments and tools
- Required wiring checks using troubleshooting procedures and charts
- Measurement and troubleshooting using meters
- LRU replacement general practices
- 2B - Wiring practices documentation
- Standard wiring practices manual structure and overview
- Chapter cross-reference index
- Important data and tables
- Wiring diagram manuals
- Other documentation as applicable
- 3C - Inspection
- General visual, detailed, special detailed and zonal inspection, criteria and standards
- Human factors in inspection
- Zonal areas of inspection
- Wiring system damage
- 4D - Housekeeping
- External, internal and other contamination sources
- Contamination protection planning
- Protection during aeroplane maintenance and repair
- Cleaning processes
- 5E - Wire
- Wire identification, type and construction
- Insulation qualities and damage limits
- Inspection criteria and standards for wire and wire bundles
- Wire bundle installation practices
- Typical damage and areas found
- Maintenance and repair procedures, sleeving
- Unused wires (termination and storage), electrical bonding and grounds
- 6F - Connective devices
- General connector types and identification
- Inspection, repair and replacement of connective devices
- 7G - Connective device repair
- Circular and rectangular connectors
- Terminal blocks (modular and non-modular)
- Grounding modules and pressure seals
Objectives
- Enhance awareness of the importance of EWIS safety
- Ensure proper procedures, methods and practices for maintenance, modification, inspection and cleaning of EWIS
- Course in accordance with EASA AMC 20-21 / 20-22 and CS-25A5(H)
- Properly evaluate EWIS and use the manufacturer’s Chapter 20 Standard Wiring Practice Manual
Who should attend
Personnel and roles for whom this training is intended.
