Fitness-For-Service - A tool to optimise maintenance

On demand webinar

On demand webinar

Learn more about the "Fitness-For-Service" (FFS) Assessment in our Free On Demand Webinar


The so-called Fitness-For-Service (FFS) Assessment is a quantitative engineering evaluation that is performed to demonstrate the structural integrity of a component in service containing a flaw or damage. As such, it can be used to determine if affected pressurised equipment can continue to operate safely even with the damage for some time and thus to make the proper “run-repair-replace” decisions.

The webinar focuses on which kind of flaws and damages the assessment can be applied, which data is needed to be captured to evaluate them, and how it helps optimise maintenance by stretching the time until repair or replacement.


Our on demand webinar tackleS these points, focusing on:

  • What is a Fitness-For-Service (FFS) Assessment?
  • What is needed to carry it out?
  • Which codes provide rules and calculation procedures?
  • What kind of flaws and defects can be assessed?
  • Examples of input / outcome and measures taken

About the speaker

Johanna SteinbockDr. Johanna Steinbock

Expert in Fitness-For-Service (FFS) Assessment,TÜV SÜD

Since her PhD thesis in 2005-2008 at the Bundeswehr University, where she studied the fatigue crack growth behaviour of metallic materials, Johanna Steinbock has been working on the impacts of damages on the structure’s integrity and the determination of residual lifetime.

Starting as an expert in fracture mechanics at TÜV SÜD Industrie GmbH in Munich in 2010, due to our clients' upcoming requirements, she started drawing her attention to executing integrity assessments for all kinds of damages in correlation with the operation of pressurised components. She became an expert in Fitness-For-Service (FFS) Assessment according to the API 579-1 / ASME FFS-1 and is responsible for the education of our FFS-Inspector. She still determines the requirements/content of the FFS-Assessment, which are specific for each damage that needs to be accessed. She focuses on the fast evaluation and results with her colleagues and can deliver Level 1 and Level 3 Assessments.

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