Plating Thickness

The conductor plating thickness may be determined through several methods called out in the EN3475 test method. These include: Optical Chemical Scanning Electron Microscope (SEM) Atom Absorption Spectrometry (AAS) When contacting Lectromec about this test, please identify if there is a preferred method for your application. Read more

Corrosion Prevention and AC 43-206

January 19, 2023 Laura Wishart

This article will discuss inspection methods for evidence of corrosion on aircraft and aircraft systems; a future article will address some of the maintenance and cleaning guidance offered by AC 43-206. Read more

Glycol and Silver-Plated Conductors

September 14, 2022 Michael Traskos

In this article, we discuss silver’s susceptibility to corrosion when exposed to glycol, its impact on aircraft, and ways to mitigate potential degradation. Read more

Which Red Plague Testing is Right for My Application?

August 18, 2022 Michael Traskos

In short, red plague is corrosive galvanic corrosion that occurs between the silver plating and copper core of silver-plated copper wire. This has been a known issue since at least the 1950s and has popped up dozens of times since then with issues identified during initial product inspection. This article dives into the practical applications of red plague testing and how to identify and potentially mitigate the risks thereof. Read more

AIR7502 and Future Implications for Aviation

July 8, 2022 Laura Wishart

The AIR7502 defines voltage levels for HV aircraft and components. The extent to which AIR7502 is incorporated into the aerospace industry remains unsure, but the implications of the document are worth considering even before the document’s use is determined. Read more

EWIS High Voltage Certification

April 14, 2022 Michael Traskos

With the gradual industry implementation of high voltage EWIS systems in aviation, the demand for HV-specific safety standards is rapidly growing. High voltage OEMs currently use available industry standards, as applicable, but are still left with the task of developing and justifying their own system requirements. The SAE’s AS50881 standard, often considered the ‘go-to’ standard for OEMs, could benefit from proposed updates made to address the gaps for high voltage systems. Read more

ICA Guidance for HIRF and Lightning Protection

February 21, 2022 Laura Wishart

The advisory circular 33.4-3, issued by the FAA offers guidance for developing adequate ICA for an aircraft’s HIRF and lighting protection functions. Read more

S&T 2021 Meeting Report

January 20, 2022 Laura Wishart

A discussion covering the topics of interest presented at the FAA’s annual S&T meeting in 2021. Read more

Verification and Validation

November 1, 2021 Devon Gonteski

Amidst the manufacturing process, a structured system of quality assurance is of utmost importance; implementation of a standardized evaluation system is key to ensuring that whatever is being made is up par for its certain usage. In the world of technology and manufacturing, the evaluative journey of a product from start to finish is broken up into multiple segments.

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