What is a specialized technical inspection, and why is it key in industrial projects?

In asset-intensive operations, unscheduled downtime is often a major headache for many companies in the industrial sector. Recent studies estimate the economic impact at around $125,000 per hour, while historical data place it at $400,000 per hour [1,2]. These figures confirm the financial exposure, making the prevention of failures and the planning of specialized maintenance interventions imperative for companies, not just a technical matter.

Specialized technical inspections (STIs) have emerged as a rigorous evaluation of the condition of equipment, systems, industrial infrastructure, and other assets. Using advanced methodologies and equipment, they assess the integrity, conformity, and risks of an operation. In practice, they combine non-destructive testing, regulatory criteria, and data analysis to anticipate failures, prioritize interventions, and support maintenance decision-making. Here are some of its benefits:

• Reduces downtime and frees up capacity
• Improves safety and compliance
• Enables risk-based decision-making
• Supports asset management (ISO 55000)

Among the most frequent reasons or applications of specialized technical inspections, the following stand out:

• Pre-award and purchasing: useful for technical verification of suppliers, manufacturing inspection, acceptance testing, and homologation, among others.
• Construction and assembly: necessary for quality control, documentation verification, and traceability.
• Commissioning: relevant in establishing integrity baselines.
• Operation: supports risk-based planning and condition monitoring to schedule shutdowns.
• Service life extension: provides sensitive information for fitness-for-service assessment.

The use of specialized technical inspections informs preventive and predictive maintenance strategies. Industry leaders report reductions of between 30% and 50% in downtime. Furthermore, they report increases in equipment lifespan of 20% to 40% [3].

Over the past five years, the industrial sector has embraced the sustainable implementation of various specialized inspection techniques. Automated visual inspection is one such technology that uses sensors and machine vision algorithms — such as deep learning networks — to detect defects on large surfaces, improve equipment performance, and integrate inspection systems into production lines [4,5]. The use of ultrasound and eddy current testing, as part of non-destructive testing, is also part of this technological adoption, especially for equipment operating at high pressures and for welding components [6].

At ITIC, we have numerous success stories throughout our history, primarily involving static equipment within the Oil & Gas, petrochemical, and steel industries, among others. This success is due to the effective use of specialized techniques and the valuable contributions of our professionals, who have faced multiple challenges in highly complex services, thus establishing themselves as leaders in the sector.

Below, we list some of the most significant:

• - Determination of wall thicknesses using the Phased Array scanning method, applying the high-temperature corrosion module (up to 230 °C) to a regenerator in service at a refinery in Colombia.
• - Integrity assessment and determination of the remaining service life of a digester using a Fitness for Service (FFS) analysis, affected by cracking associated with the Stress Corrosion Cracking (SCC) mechanism in a caustic environment, in the Colombian petrochemical industry.
• - Integrity assessment and remaining life determination of an atmospheric tank affected by cracking due to Stress Corrosion Cracking (SCC) in an ethanol environment, belonging to the Oil & Gas industry in Colombia.
• - Integrity assessment and remaining-life determination of atmospheric tanks affected by accelerated corrosion driven by the combined mechanisms of Stress Corrosion Cracking (SCC) and bacterial corrosion in Oil & Gas industry facilities in Colombia and Peru.
• - Root cause analysis (RCA), integrity assessment, and remaining life determination of the rotating support structure in a 142 GWh solar park located in Guatemala.
• - Finite element analysis (FEA) structural integrity assessment of overhead cranes used in the mining, steel, and power generation sectors in Mexico.

Root cause analysis (RCA) for identifying damage mechanisms and recurring failures.

Finite element analysis (FEA/FEM) for structural simulation and design validation of overhead cranes, tanks, and support structures using Fitness for Service (FFS) methodologies in accordance with API 579.

Integrity assessment of equipment in multi-industry service (Oil & Gas, petrochemical, mining, steel, renewable energy) using advanced methodologies of API 653, API 510, and API 570.

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1. ABB-GROUP ABB Survey Reveals Unplanned Downtime Costs $125,000 per Hour Available online: https://new.abb.com/news/detail/107660/abb-survey-reveals-unplanned-downtime-costs-125000-per-hour?utm_source=chatgpt.com (accessed on 15 October 2025).

2. IDS-INDATA The Real Cost of Downtime in Manufacturing: Sector-by-Sector Breakdown and 2025 Forecasting Available online: https://idsindata.co.uk/manufacturing-downtime-costs-and-forecasting/ (accessed on 15 October 2025).

3. Dilda, V.; Mori, L.; Noterdaeme, O.; Schmitz, C. Manufacturing: Analytics Unleashes Productivity and Profitability Available online: https://www.mckinsey.com/capabilities/operations/our-insights/manufacturing-analytics-unleashes-productivity-and-profitability (accessed on 15 October 2025).

4. Kim, K.; Park, J. Vision Sensor Technology Trends for Industrial Inspection System. J. Korean Soc. Precis. Eng. 2021, 38, 897–904, doi:10.7736/JKSPE.021.094.

5. Ebayyeh, A.A.R.M.A.; Mousavi, A. A Review and Analysis of Automatic Optical Inspection and Quality Monitoring Methods in Electronics Industry. IEEE Access 2020, 8, 183192–183271, doi:10.1109/ACCESS.2020.3029127.

6. Taylor, J.; Kirk, K.; Bennecer, A. Perceptions and Insight from Industry on the Reliability of Phased Array Technology in Weld Inspection. Insight Non-Destructive Test. Cond. Monit. 2025, 67, 430–438, doi:10.1784/insi.2025.67.7.430.