Non-Destructive Testing is a critical service offered by SEAL Aviation. NDT services allows our highly trained aircraft technicians the ability to perform a variety of tests on different parts of the aircraft, without damaging it. The first step to any aircraft repair is a proper and thorough diagnosis. This must include an accurate assessment of the aircraft. All structural and critical components must pass rigorous testing. By integrating non-destructive testing in the process, the aircrafts internal makeup can be analyzed without invasive probing or removing the external panels.
Another great benefit to our NDT services is that they can be performed in less time than traditional testing. Often times, blindly searching for potential weak spots in trouble zones is time consuming. Grounding an aircraft for extensive testing can be costly. To avoid this, NDT testing can discover defects in a timely fashion, getting the aircraft back on the tarmac quickly and safely.
While the majority of NDT takes place on the aircraft frame, non-destructive testing is frequently used on aircraft landing gears, engines, turbos, and other critical components. And because these pieces are composed of different materials, different methods of NDT must be performed. These include options like Radiography, Eddy Current, Ultrasound, Liquid Penetrant, Magnetic Particle, Bond Testing & Paint Thickness testing. Some of the more popular methods are expanded below.
Radiography involves passing electromagnetic radiation through the material being tested and onto film. Radiation hazards are present will deploying this method, so only highly trained professionals should attempt this level of testing. We use radiography to test and inspect nonmetallic parts for integrity, water intrusion, cracks and other defects. It’s used on metallic parts such as welds or castings to reveal corrosion, loose fittings or rivets, out of round holes and other defects.
Eddy Currents are electrical currents that are produced from a reaction with magnetic fields. A materials chemistry and temperature affect its permeability. Several sophisticated instruments are typically employed during an eddy current test, including a meter display instrument, and impedance plane display instrument, a linear time base display instrument and a bargraph display instrument. When used in conjunction with a eddy current test, you can determine surface and sub-surface abnormalties. Corrosion, surface inconsistencies, bolt hole issues and other potential pain points can typically be deteced with by using eddy current.
Using ultrasonic sound frequencies that can’t be heard is the basis of ultrasound testing. Ultrasonic testing measures sounds waves as they bounce of different materials. Any change in a materials consistency will change the rate at which the sound bounces back. By measureing this echo, many potential defects can come to light.
As a proud industry leader in NDT Services, providing non-destructive testing to our clients is just one of the ways we can provide you with the highest quality service. Nothing is more important than the integrity and safety of your aircraft. At SEAL Aviation, we treat that fact with the highest regard. We’ve staked our reputation and our name on the service we deliver our clients.
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If you’re interested in our NDT services, or any of our methods of non-destructive testing, please contact us to find out how we’re ready to get you wheels up!