There is No Room for Milquetoast in Eddy Current Testing
- Ed Korkowski
- Apr 25
- 3 min read
Let’s get one thing straight: eddy current testing isn’t for the timid. It’s not for the folks who nod along in meetings, avoid conflict, and hope the computer will catch everything for them. No, ECT demands backbone. It demands judgment. And more than anything, it demands that you speak up — especially when the signals are messy, the results are ambiguous, and the schedule is breathing down your neck.
Milquetoast has no place here.
The Analyst's Job Isn't Just to Analyze — It's to Assert
The real work in ECT doesn’t end at interpreting phase angles or watching impedance planes dance. It starts when you have to explain what those signals mean. To the engineer who wants crack lengths down to a thousandth. To the manager who insists, “This inspection can’t delay our outage.” To the regulator who needs to know why one tube was plugged and another wasn’t. A good analyst knows when to hold the line. A great one knows how to explain it so it sticks — even when it’s inconvenient.
“I Think” vs. “I Know”
Confidence comes from more than just training — it comes from experience and internal calibration. If you’re flipping between ‘maybe’ and ‘not sure,’ your team feels that uncertainty. But when you’ve reviewed thousands of signals just like it, when you've run mockups and know your probe behavior cold, you don’t guess — you report with authority.
Untrained analysts may cling to software suggestions. But we all know that no automated system will ever be a replacement for critical human judgment. Not in this field.
The Dunning-Kruger Effect is Alive and Well in ECT
We need to talk about overconfidence — because it’s one of the most dangerous liabilities in this field. The Dunning-Kruger effect is when someone with limited knowledge overestimates their expertise, simply because they lack the experience to recognize their own gaps.
Sound familiar?
You’ve probably met the Level II who just got certified and now thinks they know more than the Level III. Or the data analyst who questions seasoned call-outs after a few weeks of training, simply because they haven’t yet been burned by real-world complexity.
In eddy current testing, this isn’t a harmless phase — it’s a setup for critical errors. Missed cracks. Unjustified plugs. Misleading reports. And it’s often the quiet, careful analyst — the one who’s seen enough to be cautious — who gets overlooked until a review reveals the truth.
The remedy? Humility backed by continuous learning. And leadership that mentors instead of enabling false confidence.
The Courage to Challenge the Room
In ECT, you will sometimes be the only voice saying, “I understand we are on critical path, but this tube NEEDS to be reinspected with a different probe", or, "Yes, I know this one extra defect will cause the allowable plugging margin to be exceeded". It takes nerve to say that in front of senior engineers, client oversight, or plant leadership. It takes guts to be the person who pauses the line because something doesn’t feel right. But that’s the job. If you're not willing to be unpopular — to deliver bad news when it's necessary, to defend your interpretation under pressure — then you shouldn’t be holding the mouse.
What We Should Be Teaching
ECT instructors should go beyond teaching impedance diagrams and gain settings. They should be training analysts to think independently, ask questions, challenge assumptions, and recognize when the data tells a deeper story than the report template allows.
That’s how we build analysts who are more than just button-pushers. We build professionals who lead.
Bottom Line
The world of Eddy Current Testing is not for the faint-hearted. It’s for the curious, the confident, and the ones who aren’t afraid to ruffle feathers in the name of accuracy. So if you're looking to make a mark in this industry, leave the milquetoast attitude at the door.
And if you are the type who wants to push yourself, to train harder, and to own your expertise — you’re in the right place.
👉 Explore training, tools, and insights at eddycurrent.com – where strong analysts sharpen their edge.
Well Explained..This blog needs to be tagged to each plant owner getting his heat exchanger inspected by ET..