Which PSA technique evaluates the appropriate level of repair for components?

Which PSA technique evaluates the appropriate level of repair for components?

• A. Failure Modes, Effects & Criticality Analysis (FMECA)
• B. Mean Time to Repair (MTTR)
• C. Level of Repair Analysis (LORA)
• D. Fault Tree Analysis (FTA)

Answer: (C)

Level of Repair Analysis focuses on determining the most cost-effective and readiness-preserving repair level for components. It weighs repair feasibility, costs, downtime, and logistics to decide whether a component should be repaired at the field/organizational level, at an intermediate level, or at a depot level, or whether replacement is more appropriate. The goal is to optimize life-cycle cost while ensuring required mission readiness, so it directly answers how to evaluate the appropriate level of repair for components. Other techniques have different aims: failure modes, effects, and criticality analysis identifies how and how severely components can fail and which failures to address first; mean time to repair is a metric for how long repairs take; fault tree analysis traces back to root causes of a specific failure event.

Level of Repair Analysis focuses on determining the most cost-effective and readiness-preserving repair level for components. It weighs repair feasibility, costs, downtime, and logistics to decide whether a component should be repaired at the field/organizational level, at an intermediate level, or at a depot level, or whether replacement is more appropriate. The goal is to optimize life-cycle cost while ensuring required mission readiness, so it directly answers how to evaluate the appropriate level of repair for components.

Other techniques have different aims: failure modes, effects, and criticality analysis identifies how and how severely components can fail and which failures to address first; mean time to repair is a metric for how long repairs take; fault tree analysis traces back to root causes of a specific failure event.