Fitness-for-Service Assessment

Engineering assessment of equipment containing flaws, damage, or operating beyond original design conditions, using API 579-1/ASME FFS-1 methodology to determine continued suitability for service.

Fitness-for-service assessment provides a structured engineering framework for evaluating whether equipment containing identified flaws or damage can continue to operate safely and reliably. TES Canada performs FFS assessments in accordance with API 579-1/ASME FFS-1, covering general and local metal loss, pitting, cracking, creep damage, fire damage, dents, gouges, and other in-service degradation.

Assessments are performed at the appropriate level — from conservative screening evaluations through to detailed numerical analysis — depending on the nature and severity of the identified condition and the data available. TES Canada works with operators to define fitness-for-service boundaries, establish monitoring or remediation requirements, and determine whether equipment can remain in service, requires repair, or should be retired.

The output is a documented engineering evaluation that provides defensible technical justification for continued operation, supports regulatory and jurisdictional compliance, and informs inspection planning, turnaround scope, and capital replacement decisions. FFS assessments are applicable to pressure vessels, heat exchangers, piping systems, storage tanks, and other fixed equipment.

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TES Canada provides practical, engineering-led services for oil & gas, LNG, pipeline, and industrial clients across Canada. Contact us to discuss your specific requirements.