FAA AC 25-27 : 2010
Current
The latest, up-to-date edition.
DEVELOPMENT OF TRANSPORT CATEGORY AIRPLANE ELECTRICAL WIRING INTERCONNECTION SYSTEMS INSTRUCTIONS FOR CONTINUED AIRWORTHINESS USING AN ENHANCED ZONAL ANALYSIS PROCEDURE
Hardcopy , PDF
English
01-01-2010
1. Purpose
2. Applicability and Explanation of Requirements
3. How this Information was Derived
4. Objective
5. Enhanced Zonal Analysis Procedure (EZAP) - General Guidance
6. EWIS ICA Developed Using an EZAP
7. EWIS ICA Source Document as Required Part 25, Appendix H,
Paragraph H25.5(b)
8. EWIS ICA Developed by Type Certificate Holders or Applicants
9. EWIS ICA Developed by an STC Applicant/Holder or Applicant
10. FAA and FAA Oversight Office Approval of EWIS ICA
11. Making EWIS ICA Available to Operators and Other Persons
12. Operator Changes to EWIS ICA
13. Causes of Wire and Other EWIS Component Degradation
14. General EWIS Maintenance Guidance
15. Protection and Caution Recommendations
Appendices
Appendix A - The Enhanced Zonal Analysis Procedure (EZAP)
Appendix B - Evaluating Whether a Design Change Impacts
Previously Approved EWIS ICA and Developing any
Necessary New or Revised EWIS ICA as Required by
section 26.11(c) or section 25.1729
Appendix C - Definitions
Appendix D - FAA Oversight Offices for the Purposes of Part 26
Appendix E - Applicable Regulations and Relevant Preamble
Discussion
Appendix F - Background
Appendix G - Related Regulations and Documents
Appendix H - EZAP Worksheets for Use by Applicants
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