Maintenance & Sustainment

EWIS SLEP Reassessment

August 9, 2016 Michael Traskos

In past articles, we have talked about a comprehensive assessment of Electrical Wire Interconnected System (EWIS) Service Life Extension Program (SLEP) that is possible with following the guidance laid out in MIL-HDBK-525. One of the areas that Lectromec did not cover thoroughly in these articles is what to do five or ten years after the […] Read more

A case study addressing EWIS sustainment needs

April 10, 2016 Michael Traskos

This white paper is a case study on recent work performed by Lectromec for the U.S. military to achieve Electrical Wire Interconnection Systems (EWIS) sustainment of an aircraft fleet. Read more

EWIS system design: Aircraft wire maintainability

January 19, 2016 Michael Traskos

The SAE Wire Installation Guidance document, AS50881, provides guidance on considerations for designing an aircraft wiring system. In this article, we examine sections of the AS50881 and discuss how each of these sections should be addressed and what factors should be considered when designing an aircraft’s Electrical Wire Interconnection System (EWIS). For this area, there […] Read more

Trends in aircraft wiring and risk assessment with John Ashour

April 28, 2015 John Gilroy

The purpose of the Lectromec Podcast is to keep you informed of trends in the rapidly changing aerospace industry. Once a month we interview leaders and seek their insight on topics related to Aircraft Electrical Wiring Interconnection System (EWIS), wire testing, and risk assessment for aerospace. Today’s interview is with the President of InterConnect Wiring […] Read more

Aircraft EWIS failure trends

April 1, 2015 Michael Traskos

The process for identifying an EWIS problem on an aircraft often follows these steps: At some point during aircraft operation a system malfunctions and the pilot reports the malfunction. Maintenance starts by replacing the system component. Depending on schedule and criticality, the maintenance action is scheduled. Often, the first action to be taken is the […] Read more

When should you consider adopting an aircraft wire life extension program? Part III

July 4, 2011 Michael Traskos

This is the third article in a series addressing the concepts associated with wire life extension and an Electrical Wire Interconnection System (EWIS) analysis of aging aircraft. The When should you consider adopting an aircraft wire life extension program? article addressed some of the fundamental concepts behind risk and risk assessment and how they are […] Read more

When should you consider adopting an aircraft wire life extension program? Part I

June 6, 2011 Michael Traskos

Editor’s Note: This is the first part in a series of articles that addresses the needs of EWIS analysis and aging aircraft. In the course of planning for your aircraft wire life extension program, eventually it becomes necessary to considering the wire system health. Like all other system components, wires (particularly the wire insulation) degrade […] Read more

The scope of chafing on aircraft wire and its impact on wire reliability

June 1, 2006 Lectromec Team

Wire chafing can have an impact on wire reliability. The U.S. Navy found as part of a review for the allocation of labor and general wiring practices, roughly $94 million is spent annually in time and materials for the removal of equipment due to undiagnosed wiring problems. This is often referred to as equipment being returned […] Read more