This course develops and/or improves the current approach to maintaining and modifying airplane wiring and systems according to 145.A.30 and 145.A.35 of Part-145 and CAMO.A.305 of Part-CAMO with respect to EWIS. Operators, holders of type certificates (TC), holders of supplemental type certificates (STC), maintenance organisations and persons performing modifications or repairs, will need to rethink their current approach to maintaining and modifying aeroplane wiring and systems. This will ensure that proper procedures, methods techniques, and practices are used when performing maintenance, preventive maintenance, inspection, alteration, and cleaning of EWIS. This course can be modified to meet other airline requirements if needed. This training can be provided either at Olympic Air Maintenance Training Organization or at customer’s site.