End-of-Life, Remaining-Life, and Fitness-for-Service Assessments

When evaluation of inspection results suggest that an asset is near its end of useful life, Asset Optimization Consultants can assist with Fitness for Service evaluations to determine if the asset is suitable for continued operation. Asset Optimization experts are experienced performing Level 1, 2, or 3 FfS assessments.
End-of-Life, Remaining-Life, and Fitness-for-Service Assessments

Fitness for service (FFS) is a methodology to determine the adequacy of a structure for continued service when it contains a flaw or is operating in a particular condition where there is risk of failure. Failure conditions and types of flaws may include:

  • brittle fracture
  • fire damage
  • geometrical irregularities
  • general corrosion / erosion
  • local metal loss
  • pitting corrosion
  • blisters
  • crack-like flaws

Cracking flaws may include:

  • amine cracking
  • ammonia cracking
  • carbonate cracking
  • hydrogen damage (H2S, HF)
  • hydrogen attack
  • caustic cracking in SS
  • chloride cracking in SS
  • polythionic cracking in SS

API RP 579 provides the methods and procedures intended to supplement and improve requirements of API 510, API 570, API 653 and API 750.

AOC consultants include engineering personnel with expertise in FFS assessments. We offer three levels of assessment per API RP 579.

Level1

  • Conservative screening
  • Minimum amount of inspection or component information
  • Plant inspection or engineering personnel

Level 2

  • More detailed less conservative with more accurate results
  • Inspection information similar to that of Level 1
  • Qualified engineering personnel

Level 3

  • The most detailed evaluation
  • The most detailed inspection and component information
  • Recommended analysis procedures based on numerical analysis techniques such as the finite element method

Related Knowledge

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Risk Based Inspection: What To Expect

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OSHA Compliance

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Time to Value - Asset Integrity Management Delivered, Confidently, Comprehensively and Quickly. An AOC & Intergraph RBI Solution

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Implementing RBI in Remote Locations

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RBI Training Manual

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Does Your Maintenance Contractor Care For Your Assets?

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Development of a Risk-Based Inspection Implementation Manual

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The Integration of Risk-Based Inspection with Real Time Process Data

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Integrating RBMI With Your ERP

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Application of a Risk-Based Program to Optimize Relief Valve Maintenance

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A Comparison of Risk Based Inspection With a Conventional API-570 Inspection Program

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Integrating Risk Based Inspection with Fitness for Purpose

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Using Risk Based Inspection to Focus on Corrosion Under Insulation

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Risk-Based Inspection, From New Technology to RAGAGEP

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Integrating Risk Based-Inspection with Fitness for Purpose

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Related Services

Mechanical Integrity Assessments

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Related Training

API 580 RBI Training

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API 580 RBI Training (Online)

Need to study API Recommended Practice 580 on your own?

API 580 RBI Overview

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RBI/MI Overview

What is Risk Based Inspection?

Equipment Data Collection

What information do we need to collect to support a Mechanical Integrity and/or RBI program?

Damage Mechanism Identification and Review

How do we identify and quantify the damage mechanisms that affect our equipment?

Estimate Risk

How do I estimate risk using the information that I have?

Activity Planning, Execution, and Evaluation

How do I plan and perform inspections and tests?

Manage Changes and Communicate Results

How do I ensure that my MI/RBI program is up to date and communicate to stakeholders?

So You Want To Be an RBI Risk Analyst

What does a Risk Analyst do and how do I become one?

Risk Based Inspection (RBI) - A Mechanical Integrity Best Practice

What are your goals for RBI? How will you measure your success? How will you sustain that success?

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How does one of the largest chemical manufacturers measure the value of their RBI program?

Requirements for Becoming a Risk Analyst

What do I need to do to be a Risk Analyst?

Value Proposition

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Asset Integrity Management Assessments

How important are they?