Asset Integrity
FFS – Fitness-for-Service
Engineering assessment to support safe operating decisions
Fitness-for-Service – API 579-1 / ASME FFS-1
- Assessment basis, flaw definition, geometry, material and loads
- Inspection-data validation and applicability screening
- Level 1, Level 2 or specialized Level 3 assessment
- Metal loss, pitting, blister / lamination and HIC / SOHIC
- Crack-like flaws, distortion, fire, creep and fatigue damage
- Remaining strength, MAWP / rerating and remaining life
- Run, monitor, repair, rerate, replace or further analysis
Assessment Scope
- General & Local Metal Loss
- Pitting / Blister / Lamination
- Crack-like Flaws
- HIC / SOHIC
Evaluation Output
- Remaining Strength / MAWP
- Utilization & Safety Factors
- Fitness Determination
- Monitoring Requirements
Decision Support
- Run – Operate with Monitoring
- Repair – Repair & Reassess Prior to Return
- Replace – Replacement Recommended
FFS Deliverables
- FFS Assessment Report
- Calculations & FEA Dossier
- Minimum Repair or Rerating Options
- Monitoring Plan (Post-Assessment)
- Decision Record & Recommendations
- Data Pack for Regulatory / Audit
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