This EWIS Phase 4 & 5 online training course is designed in accordance with EASA and UK CAA regulations, providing aviation professionals with essential knowledge on electrical wiring interconnection systems, safety practices, inspection procedures, and continued airworthiness requirements.
Approx. 3.0 Hours
Initial / Continuation
Maintenance, Management
24 Month Validity
Multiple Choice Examination
English
Mobile
DesktopThis online training provides essential knowledge for personnel handling Electrical Wiring Interconnection Systems (EWIS), ensuring compliance in line with EASA regulations under Annex III to ED Decision 2008/007/R (AMC 20-22).
This course meets the training requirements of Part-21, Part-145, and Part-M, helping improve wiring awareness and safety across the aviation industry.
EASA categorizes EWIS training into Target Groups (TG) based on job roles and responsibilities:
✅ Understand EWIS safety requirements and best practices
✅ Recognise wiring components and their function in aircraft systems
✅ Follow safe handling procedures for wiring during maintenance tasks
✅ Identify and prevent potential EWIS damage risks
General EWIS Practices: Introduction to EWIS and Historical Incidents
Wiring Practices Documentation: Safety Practices, Electrostatic Discharge Sensitive Devices, LRU Replacement, Certification Considerations
Inspection: Aircraft Maintenance Inspection, Human Factors, Wire system Damage,
Housekeeping: Contamination, Cleaning & Protection
Wiring: Electrical Bonding & Ground Discharge Methods
Download Syllabus1. EWIS TG1&2 – Defined as being for “Qualified staff performing EWIS maintenance” & “Qualified staff performing maintenance inspections on EWIS.”
(E.g. B2 Engineers, Electrical Engineers/Inspectors, Avionic Engineer/Inspectors)
NOTE: Some organisations require B1 engineers who are signing-off aircraft to be TG1&2 trained
2. EWIS TG4&5 – Defined as being for “Qualified staff performing general maintenance/inspections not involving wire maintenance (LRU change is not considered wire maintenance)” & “Qualified staff performing other engineering or planning work on in-service aeroplane”
(E.g. A Licenced Engineers, B1 Licenced Engineers, Sheet Metal Workers (SMW), Mechanics)
3. EWIS TG6 – Defined as being for “Other service staff with duties in proximity to electrical wiring interconnection systems”
(E.g. (but not limited to): Aeroplane cleaners, cargo loaders, re-fuelling staff, lavatory servicing personnel, de-icing personnel, push back personnel, etc.)
4. EWIS TG7 – Defined as being for “Flight Deck Crew”
5. EWIS TG8 – Defined as being for “Cabin Crew”
1. Human Factors, Fuel Tank Safety and EWIS training lasts 2 years. If an initial certificate is held and the training is being completed for the two-year renewal then the Continuation Courses are sufficient.
(NOTE: Some organisations require a full continuation of training so if there is a large enough gap between certificates expiring and being renewed, the initial training may be needed again. This can differ based on each individual Company’s Quality Procedures.)
1. Initially you will have three attempts at the exam, if a passing mark is not reached after the three attempts then please contact enquiries@bostonairtraining.com
(NB for admin: Attempts can be reset once and then they must be purchased again.)
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1. Most courses take around 2-4hrs to complete, with regulatory courses (Part 145, Part M and Part CAMO) taking around 6-8hrs to complete. However, the online courses are self-led, and are therefore taken at the pace of the student and are accessible 24/7. The courses can be pauses and resumed as many times as necessary.
2. Login details are initially valid for 90 days but can be extended on a discretionary basis. Please contact the team via email: enquries@bostonairtraining.com or call us on: +44 (0) 1482 679 757
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Topics Covered: SMS Principles | Risk Management | Safety Culture | Reporting | Assurance
Topics Covered: Human Factors | Errors | Decision Making | Teamwork & Leadership| Environment | SMS
