Which loop resistance tester do the OEMs want you to use?

A view of a runway at an airport showing several planes on the tarmac

Identifying the right tool for aircraft OEM (Original Equipment Manufacturer)  bond and loop testing requirements can be complex. As an MRO, your first point of call should be the AMM (maintenance manual).  However, some OEMs are more prescriptive than others.  And with a broad range of similar tools available on the marketing all claiming to comply…

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How to choose a loop resistance tester

how to choose a loop resistance tester

Modern loop resistance tester tools have several features designed to make prescribed testing easier and faster than ever before. This article is a quick guide on the top features to look for when you’re sourcing an LRT. OEM approval Is the tool specified for use by the aircraft manufacturer?  It goes without saying that to…

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ExLRT leasing and procurement support

BLOG-2020-3b ExLRT leasing and procurement options widget image

Are you unhappy with your current LRT but are hesitant to commit to an unknown tool? Or perhaps you’re looking to upgrade to a digital, automatic solution but aren’t sure what’s right for your facility. We’re confident that you just need to trial the ExLRT to see how it improves loop resistance testing for your…

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Tech::Lab challenges: Designing an intrinsically safe LRT

BLOG-2020-1b - intrinsically safe lrt

In this article, our guest author Colin Cameron takes an in-depth look at the specific challenges of designing the ExLRT, an Intrinsically Safe LRT (loop resistance tester). About the author An expert on intrinsic safety (IS), Colin Cameron sits on several committees for Intrinsic Safety Standards.  He is Managing Director of Mutech Ltd, an electronic…

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ExLRT vs LRT: Technology designed for MRO facilities

exlrt designed for mro

This second article in our ExLRT vs LRT comparison series takes a closer look at the features specifically designed for MRO users. Part one of our Loop Resistance Tester comparison series looked at the physical differences between the ExLRT and the legacy LRT tool.  We confirmed that size matters after all – and in this…

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ExLRT vs LRT: Size matters


Part one in our Loop Resistance Tester comparison series looks at the difference in the size & weight of the only two tools approved by The Boeing Company – the legacy ‘yellow box’ LRT and its newer counterpart, the ExLRT. Lightening the load Size matters, especially when you’re working at height or in small spaces.…

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A guide to Intrinsically Safe tools for MROs

intrinsically safe tools

This article explains intrinsically safe tools within an MRO environment.  It also highlights the obligations of MROs to use approved tools, and explains the potential consequences if incorrect equipment is used. What is meant by Intrinsically Safe? The aviation industry is rightly consumed with safety and accident prevention; this includes when the planes are grounded. …

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What is a loop resistance test?

What is a loop resistance test?

A loop resistance test is carried out during aircraft manufacture or maintenance to check that it will be safe in the event of being struck by lightning. Why are loop resistance tests needed? Planes are struck by lightning about once a year*, based on data from the US Federal Aviation Authority (FAA). That’s surprisingly often…

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ExLRT vs LRT: A full comparison

ExLRT vs LRT loop resistance tester: A full comparison

Can your business afford to not upgrade from the LRT? If you’re an MRO working on Boeing aircraft, then it’s likely that you have a legacy ‘yellow-box’ LRT in your facility. You might use this regularly and are used to working around well-known flaws, or you may have heard colleagues talk about them whenever loop…

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ExLRT vs LRT: Intrinsic safety

Intrinsic safety

This article continues our series of blog posts highlighting the benefits of the ExLRT (model XLR-9703-01) compared to the LRT (model 906-10246-3).  So far, we’ve looked at the physical differences and how suitable each tool is for use in [MRO facilities].   We’ve now arrived at the critical feature – Intrinsic Safety credentials. What does Intrinsic…

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