Electrical Wiring Interconnect System (EWIS) and FAA Requirements

Electrical Wiring Interconnect System (EWIS) and FAA Requirements

Instructor

C. Bruce Stephens

Course Description

This course will discuss the FAA Code of Federal Regulations (CFR’s) and design concepts required to ensure all aspects of aircraft electrical wiring and installation are safe. It will examine aircraft wiring as a system and review all Part 25 CFR’s related to EWIS FAA Certification. A review of FAA Advisory Circulars and practical applications of the information will be conducted as teams will be selected to simulate the EWIS certification process. EWIS requirements for aircraft maintenance and inspection will also be discussed.

The course will also include a high level overview of Electromagnetic Compatibility (EMC), High Intensity Radiated Fields (HIRF), Lightning, Precipitation Static, Electrostatic Discharge and Electrical Bonding requirements.

Course includes instruction, a course notebook, refreshments and five lunches. The course notes are for participants only and are not for sale.

Target Audience

Electrical, Avionics, and HIRF/Lightning Technicians and Designers.

Times/CEUs

Class time: 31.5 hours

CEUs: 3.15

Course Outline

Day One

  • Introduction
  • The Electromagnetic Environment of Aircraft—Metallic and Composite Aircraft Requirements
  • Electromagnetic Interference (EMI)
  • Electromagnetic Compatibility (EMC)
  • Electrical Bonding
  • Electrostatic Discharge (ESD)
  • Precipitation Static (P-STATIC)
  • High-Intensity Radiated Fields (HIRF)
  • Lightning

Day Two

  • Aircraft EWIS Best Practices Job Aid—Background and Examples
  • Certification of Electrical Wiring Interconnection Systems on Transport Category Airplanes
  • EWIS Examples and Practical Applications
  • EWIS Workshop

Day Three

  • Certification Case Study Design Example
  • Electrical Equipment and Installations
  • Circuit Protective Devices
  • Fire Protection Systems
  • Electrical Supplies for Emergency Conditions
  • Protection Against Injury
  • Electrical Wiring Interconnection Systems Instructions for Continued Airworthiness Using Enhanced Zonal Analysis Procedure
  • EWIS Workshop

Day Four

  • System Design and Analysis
  • Fuel Tank Ignition Source Prevention Guidelines
  • Acceptable Methods, Techniques and Practices—Aircraft Inspection and Repair
  • EWIS Workshop

Day Five

  • CFR Compliance Statements
  • Final EWIS Discussion and Questions
  • EWIS Final Exam presentations