PDI-Qualified & EPRI-Endorsed Outage Experts Using Cutting-Edge Technology to Meet Compliance Requirements

IIA’s team ensures the continued reliability and operation of your plant, and we have the expertise, ability, and capacity to respond to multiple concurrent outages. We take pride in using technology that helps you meet or exceed your tight schedule requirements, minimizing downtime, and maximizing resources.

We are truly the outage experts. Our team includes some of the most highly qualified professionals from ASNT Level II and III Technicians to Certified Weld Inspectors who provide all in-service IST and ISI inspection work including examining welds, offering unmatched elbow weld inspections, and providing examinations for valves, heavy wall components, reactor vessels, steam reactors, and condensate storage tanks. Our professionals are responsive and can mobilize quickly to meet all your facility needs.

For over four decades IIA has been the go-to service provider, conducting safe, quality outage inspections, outage planning, and other maintenance needs across North America. IIA is EPRI endorsed, and our team consists of highly qualified and certified ASNT Level I, II, and III Technicians, including Certified Welding Inspectors. Our professionals have training and hands-on experience in all inspection and testing methods, and we also ensure they understand plant operations, guidelines, goals, and needs.

Outage Services We Provide


  • Outage Planning
  • Boiler Visual Inspection
  • Tank and Piping Inspections
  • Burner Set-up
  • Quality Control / Quality Assurance
  • Hydrogen Damage Inspection
  • API 653 tank inspections
  • API 570 piping inspections
  • API 510 Pressurized Vessels
  • IRIS & Near Drum Testing


  • Eddy Current
  • Radiography (RT/CR/X-Ray)
  • Magnetic Particle (MT)
  • Penetrant Testing (PT)
  • Ultrasonic Thickness Testing (UTT)
  • Visual Testing (VT)
  • Corrosion Mapping
  • Ferrite Testing
  • Hardness Testing
  • Flex Form Phased Array
  • Computed Radiography
  • Phased Array Ultrasonic Testing (PAUT) Manual & Automated
  • Full Matrix Capture (FMC)
  • Time of Flight Diffraction (TOFD)
  • Shear Wave


Internal Visual Inspections of anything from 1⁄4" and above in tanks, tubes, vessels or pipes, including:

  • Cracks, Holes or Joint Separation
  • Collapsed Pipes
  • Blockage or Debris Build Up
  • Foreign Object Removal/Retrieval
  • General Assessment - Cleanliness, Corrosion, Water
  • Feedwater Line Inspections
  • Cold and Hot Reheat Line Inspections with Magnetic Crawlers
  • ROV to assist in inspection of CST and RWST tanks


  • Visual Inspections
  • Eddy Current Testing
  • Magnetic Particle Testing
  • Penetrant Testing
  • Ultrasonic Mapping and Inspections
  • Ultrasonic shear wave weld examinations

Cutting-Edge Technology

Our patented ARMUT® utilizes QR code film on complex geometry to examine critical welds and gather extremely high-resolution images, and the innovative and patented PASS® technology and examination method assists in making critical decisions regarding valve operability and predictive maintenance.

While we provide conventional and advanced inspection methods, such as visual and ultrasonic inspections, magnetic particle and penetrant testing, we also have proprietary technology to aid in inspection speed and reliability.

Some of our proprietary technology is used in lieu of radiography, which provides a safer testing environment while working with fewer on-site crew members, allowing other plant personnel to simultaneously continue work on their tasks.

In addition, our patented AIRIS® technology along with an ROV are deployed and used to scan components inside reactor vessels as well as inspection of the CST and RWST.

Other Services

IIA also uses Remote Visual Inspection techniques and technology to maintain FME protocols. These tools are used to locate and retrieve foreign objects which can cause contamination and lead to shut-downs resulting in loss of revenue and catastrophic failures.

We employ the best in the business, deploy the most accurate equipment, and provide the highest quality methods. Our quality service, inspection, maintenance, and emergent service helps avoid shut-downs, restore reliable operations, and assist in making critical decisions for your plant..



Outage Summary Sheet - PDI-QUALIFIED & EPRI-ENDORSED OUTAGE EXPERTS USING CUTTING-EDGE TECHNOLOGY TO MEET COMPLIANCE REQUIREMENTS You can count on IIA’s team of experts to ensure the continued reliability and… Read More

What Customers are Saying

“Nuclear power plants are unique and require adhering to special safety rules and processes. I believe IIA’s nuclear site experience was a critical factor in the project’s success.”

~ A Key Leader from the Nuclear Division of a Fortune 100 Energy Company

Certifications & Guidelines

  • All Certifications Based on Guidelines in In-Line Inspection Validation 10CFR50, Appendix B, SNT-TC-1A and CP189 Part 21 ANSI Standard N45.2
  • Approved Vendor of:


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