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

Electrical arcing of aircraft wire is hazardous even over separation

May 30, 2011 Michael Traskos

Research shows hydraulic line can be punctured without direct contact with arcing wire Recent research conducted by Lectromec confirmed the harmful effects of electrical arcing of aircraft wire events even in the presence of positive separation between the arcing source and the arcing target. Laboratory tests using hydraulic lines as arcing targets showed that, even […] Read more

Aircraft wire insulation degradation and advancements with WIDAS 2.0

May 5, 2011 Michael Traskos

A fundamental principle of wire analysis technologies has been the fact that wire insulations degrade over time. To this end, Lectromec developed the first generation of the Wire Insulation Degradation Analysis System (WIDAS) in the early 1990’s. The WIDAS targeted the particular needs of aircraft operators who needed a scientific basis for making fleet maintenance […] Read more

FAA wire incidents report: March 2009

September 1, 2009 Lectromec Team

The following are the wire incidents reported in the FAA’s March 2009 Circular 43-16A – Alert Number 368. Incident # 1 Aircraft Make: Cessna Aircraft Model: A150K Part Name: Air Intake Part Condition: Water Block From the perspective of FAA Wire Incidents, a mechanic provides this excellent analysis of his customer’s aircraft problems: “The owner […] Read more

FAA wire incidents report: January 2009

April 3, 2009 Lectromec Team

The following are the wire incidents reported in the FAA wire incidents report for January 2009 Advisory Circular 43-16A – Alert Number 366. Incident #1 Aircraft Make: Beechjet Aircraft Model: 400A Part Name: Wire Part Condition: Chafing Part Location: Right Forward Galley “The pitch-trim (was found to be) inoperative. (I) removed the right forward galley […] Read more

FAA wire incidents report: October and November 2008

January 1, 2009 Lectromec Team

The following are the wire incidents reported in the FAA’s October 2008 Advisory Circular 43-16A – Alert Number 363 and November 2008 Advisory Circular 43-16A – Alert Number and 364. Incident #1 DASSAULT Dassault: 900B; Failed Circuit Breaker; ATA 2400 A repair station report states: While troubleshooting AC electrical outlets for being inoperative,(we) removed a […] Read more

Aircraft wire selection, harness protection devices, and aircraft wire systems topic Q&A

November 7, 2008 Lectromec Team

Answering Reader Mail Third Quarter 2008 November 7, 2008 From time to time, I get some basic questions about aircraft wire systems. To accommodate this, I have answered some of these questions and have posted the responses below. What are some of the steps that exist which people should take when selecting wire? First and […] Read more

Physical and functional EWIS issues included in Rule 25.1709

January 1, 2008 Lectromec Team

The recent set of FAA rules deal with physical and functional EWIS issues. The rules were released for the Enhanced Airworthiness Program for Airplane Systems/Fuel Tank Safety (EAPAS/FTS) places new requirements on system safety and certification of aircraft Electrical Wiring Interconnection Systems (EWIS). These new rules were effective as of December 2007. They are the culmination […] Read more

Aircraft databases that impact aircraft engineers

November 1, 2007 Lectromec Team

There are a number of aircraft databases that exist on the web that can be used to survey aircraft incidents and service problems. One of these databases may have the answer to an important question from an aircraft engineer. This Lectrogram shall provide a brief summary of several of the more robust databases relevant to aircraft […] Read more

EWIS evaluation of F-16

May 1, 2007 Michael Traskos

You may ask about EWIS evaluation of aircraft of a F-16. The results of recent testing indicated a rate of 5.4 breaches per 1000 feet of wire tested. Lectromec and InterConnect Wiring, at the 10th Aging Aircraft Conference, delivered a report describing a recently completed series of tests to evaluate the status of wire harnesses removed […] Read more

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