Inspectioneering Journal

Roadmap for Effective Risk-Based Inspection Implementation

By Asad Ali, Senior RBI Engineer at ADNOC LNG, and Houssam Sabry, Manager of Corrosion and Inspection at ADNOC LNG. This article appears in the January/February 2019 issue of Inspectioneering Journal.


Risk-based inspection methodology (RBI) evolved in mid-90’s and within two decades it has gained significant acceptance and application across industry. Many organizations have benefited from the risk-based approach for optimizing their inspection resources and getting maximum availability of their assets.

Some of the benefits from RBI may include:

  • Increased facility availability, improved reliability
  • Focused inspection on high risk equipment
  • Increased intervals between inspections
  • Shorter and fewer facility shutdowns
  • Clearer understanding of high-risk equipment and ability to implement mitigation measures
  • Identified deterioration modes and mechanisms
  • Significant reduction in total cost of inspection
  • Regulatory compliance/acceptance
  • Improved Turnaround planning
  • Better-informed, documented, defensible decisions

There are a handful of standards and recommended practices covering RBI such as API 580/581, ASME PCC3, DNV-RP-G101, & RIMAP. Most of these guidelines provide either oversimplified or complex explanations. For starters, it is difficult to learn all the aspects that are critical to the successful implementation of RBI. The purpose of this article is to discuss the fundamental elements of effective RBI system implementation in a simplified manner.

An effective RBI system implementation results in, not only safeguarding your assets & people, but can also reduce unnecessary inspection activities that may be required due to conventional & nonsystematic approaches. However, some essential elements are required to accomplish this, including:

  • Solid commitment from the management and stake holders
  • A team of knowledgeable, qualified specialists and engineers from departments such as corrosion, inspection, maintenance/reliability, process, production and operation etc.
  • Availability of design, construction, historical records and inspection data
  • Suitable methodology and software for the assessments
  • Utilization of latest technologies for inspection

RBI programs may suffer in delivering desired results due to lack of understanding regarding the effective implementation strategy and these essential elements. A general misconception regarding RBI is “the reduction of inspection cost”, which may not necessarily be true all of the time as the focus of RBI is to understand and reduce the risk associated with operation of an asset or facility, not just the inspection costs. However, cost reduction can be an attribute of a well-implemented RBI program, which is achievable long term. Therefore, a better understanding of inputs and outputs is required before and after implementation.

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Comments and Discussion

Posted by Karthik K on March 14, 2019
As i am fresher it is interesting to learn from... Log in or register to read the rest of this comment.

Posted by José Guimarães on March 18, 2019
Obrigado (Tank you) Log in or register to read the rest of this comment.

Posted by reza shahrivar on March 18, 2019
Good job! You have summarised everything in a... Log in or register to read the rest of this comment.

Posted by Ejiro Enyemike on March 23, 2019
Thanks. Short and informative. Log in or register to read the rest of this comment.

Posted by Wahed Gomaa on April 7, 2019
Thanks Log in or register to read the rest of this comment.

Posted by Asad Ali on April 20, 2019
Thanks all for your comments. Log in or register to read the rest of this comment.

Posted by Arman Shiva on June 21, 2019
This was a very informative article for someone... Log in or register to read the rest of this comment.

Posted by Qaisar Abbas on September 30, 2019
Kudos! Very well written. Really a clear roadmap... Log in or register to read the rest of this comment.

Posted by Ashraf Elwerfali on September 5, 2020 (Edited on September 5, 2020)
It is really impressive article, thanks a lot Log in or register to read the rest of this comment.

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