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Techna NDT is the leading manufacturer of nondestructive testing tools and accessories for commercial aircrafts.

Standards and Certifications

Techna NDT’s mission is to provide our customers with quality products, technical support, and excellent customer service that includes quick response and fast lead times. On behalf of our employees, we thank you for your continued business and loyalty.

ISO 9001 Standards
As part of our ongoing commitment to customer satisfaction, we operate and implement a quality management system which complies with the ISO 9001:2015 Standard. (no formal certifications)

Composite Reference Standards
Techna NDT is licensed by Boeing to produce the ST8871 composite reference standard used on the 787. We also sell the companion holder TEK-9012 and manufacture a number of other related items as well.

Calibration Certificates & Manufacturers Certificates of Conformance
All manufactured items include calibration certificates and coc's, at no additional charge.

Company History

Techna NDT’s roots are embedded deep in the pioneering work of Van Phelps, who as a Boeing engineer in the 1950s and 60s laid the groundwork for today’s eddy current probe while researching ultrasound in the company’s research & development area.

However, it wasn’t until more than two decades later that Phelps and a friend saw the commercial potential of these two new NDT methods. After taking early retirement from Boeing in 1984, Phelps started NDT Engineering Corporation and began manufacturing one of the first eddy current probes widely available for testing within the airline industry.

Twenty years after starting NDT Engineering, Phelps and his partner sold the business to Olympus Corporation, which formed Olympus NDT. Three years later, he began working with Techna NDT, a startup company formed in 2004 by his daughter Trish and partners. Trish had earlier worked with NDT Engineering, specializing in ultrasonic transducers, and she continues to serve as Techna NDT’s primary expert on UT technology to this day.

At Techna NDT, we continue to walk proudly in the footsteps of Van Phelps and his groundbreaking work in the field of non-destructive testing. Our goal remains producing the highest quality reference standards, eddy current probes, ultrasonic transducers, and related accessories that are essential for ensuring the safety of thousands of commercial and private airline flights each year.

NDT pioneer Van Phelps


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Parts Database

Techna NDT provides eddy current probes, ultrasonic transducers, as well as metal, plastic & composite reference standards for NDT Inspections procedures by Boeing, Airbus, Bombardier and Lockheed Martin, to name a few.


Calibration Certificates and Manufacturers Certificate of Conformance are included with purchase.

If you can't find an item you are looking for, you can contact us at sales@technandt.com

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6707 S. 216th St.
Kent, WA 98032
Tel: (253) 872-2415
Fax: (253) 872-2416