Space Payload & Avionics Manufacturing worked example

Component Derating Risk with consequence-of-overstress severity of 3 score: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop consequence-of-overstress severity to 3 score, then walk the calculation through step by step. Estimate component derating risk for space payload and avionics manufacturing using production-ready inputs so teams can rank risks and decide which issue needs containment, controls, or escalation first.

The inputs for this scenario

  • Consequence-of-Overstress Severity: 3 score (the input this scenario stresses; the baseline uses 6)
  • Likelihood of Exceeding Derating Limit: 4 score (held at the documented default)
  • Detectability Before Flight: 3 score (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Component derating risk score = component derating risk severity score × component derating risk occurrence score × component derating risk detection score.
  • Component derating risk score works out to 3.35 score at these inputs, and this is the headline figure for the scenario.
  • Component derating risk severity score works out to 3 score at these inputs.
  • Component derating risk occurrence score works out to 4 score at these inputs.
  • Component derating risk detection score works out to 3 score at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where consequence-of-overstress severity sits at 6 score and the headline result is 4.55 score, this scenario comes in 26.37% below the baseline at 3.35 score.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to consequence-of-overstress severity, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. RPN multiplication can mask a high-severity item behind a low occurrence or detection score, so always treat any high-severity part as an escalation regardless of the product.

Results at a glance

  • Component derating risk score: 3.35 score (headline result)
  • Component derating risk severity score: 3 score
  • Component derating risk occurrence score: 4 score
  • Component derating risk detection score: 3 score

Run it with your numbers

  • To rerun this with your own numbers, open the live Component Derating Risk calculator, set consequence-of-overstress severity to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.