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KU Aerospace Short Course Program

Instructions for Continued Airworthiness Using Enhanced Zonal Analysis Procedure (EZAP) *New Course*

Instructor: C. Bruce Stephens
Printable Course Information (PDF)

Course Schedule

September 13-15, 2017, San Diego, California

Early registration course fee: $1,895 if you register and pay by July 28, 2017

Regular registration course fee: $1,995 if you register and pay after July 28, 2017

San Diego Lodging and Travel Information

You can also bring this course to your workplace. Learn more about our on-site program.


This course will discuss the Enhanced Airworthiness Program for Airplane Systems/Fuel Tank Safety (EAPAS/FTS) rule. This rule requires design approval holders (DAH) and applicants to develop instructions for continued airworthiness (ICA) consisting of maintenance and inspection tasks, intervals, and procedures for the representative airplane’s electrical wiring interconnection systems (EWIS) for each affected type design.

Includes instruction, course materials, refreshments and lunches. The course notes are for participants only and are not for sale.


  • EZAP best practices
  • Team EZAP workshops
  • DER/UM EZAP requirements
  • EZAP examples and practical applications
  • Review of Advisory Circulars

Who Should Attend?

The course is designed for all aircraft design areas including Electrical, Avionics, EWIS and HIRF/Lightning Engineers and aircraft technicians. Maintenance and Inspection Managers and Operators Aircraft Managers should also attend.

Times / CEUs

21.00 classroom hours
2.100 CEUs

Certificate Track

Electrical Wiring Interconnection System (EWIS)

Learning Objectives

  • An understanding of the guidance material used for developing the maintenance and inspection instructions for EWIS using an enhanced zonal analysis procedure (EZAP)
  • An understanding of how the information developed using EZAP can be used by operators to improve EWIS maintenance practices
  • An overview of Certification of Electrical Wiring Interconnection Systems on Transport Category Airplanes
  • Use of the EZAP Flowchart to determine EWIS change requirements
  • Requirements to develop EWIS ICA
  • Design requirements related to EZAP
  • How EZAP impacts Engineering Requirements

Course Outline

Day 1:

  • Class Overview
  • Class Introductions
  • Introduction to EZAP
  • Introduction to EWIS        
  • FAA EWIS Aircraft EWIS/EZAP Best Practices Job Aid—Background and Examples
  • EWIS Wire & Component Degradation
  • 14 CFR 25.1729 Overview

o   26.11 vs. 25.1729

o   Part 25, Appendix H Requirements

  • EZAP/FAA AC 25-27 Process Overview
  • EZAP Workshop (Team exercise)

Day 2:

  • Recap of Day 1
  • EZAP/FAA AC 25-27 Process Overview (cont)
  • Enhanced Zonal Analysis Process (EZAP) – AC 25-27 Flowchart
  • EZAP Work Sheet Overview/Examples AC 25-27A Appendix A
  • EZAP Workshop (Team exercise)


Day 3:

  • Recap of Day 2
  • EWIS ICA Developed by STC Applicant/Holder
  • Development of EWIS ICA for Design Changes
  • Approval of EWIS ICA Source Document
  • ICA Checklist – EWIS/EZAP
  • EZAP Final Exams Presentations
  • Class Evaluations

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On-site Contact Information

To learn about bringing a course to your workplace, contact Sarah Williams, on-site program manager, for a no-cost, no-obligation proposal.
Email ProfessionalPrograms@ku.edu
Phone 913-897-8782

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