Aerospace & Defense Manufacturing worked example

Material Shelf-Life Risk with expiry impact severity of 20 1-10: a worked example

This scenario runs the material shelf-life risk calculation on the strong side: expiry impact severity of 20 1-10, with every other input held at its documented default. a materials or MRO manager needs to rank shelf-life risk for controlled aerospace consumables

The inputs for this scenario

  • Expiry impact severity: 20 1-10 (raised for this scenario; the documented default is 8)
  • Expiration likelihood before use: 7 1-10 (unchanged)
  • Detection or shelf-life extension difficulty: 6 1-10 (unchanged)

Working through the calculation

  • Applying the documented formula (Material shelf-life risk score = severity score × likelihood score × detection difficulty score) to the inputs above produces each figure below.
  • At this operating point the engine returns 11.95 score for material shelf-life risk score, the number this scenario is built around.
  • At this operating point the engine returns 20 1-10 for expiry impact severity.
  • At this operating point the engine returns 7 1-10 for expiration likelihood.
  • At this operating point the engine returns 6 1-10 for detection or extension difficulty.

How this compares with the baseline

  • Against the tool's baseline example, where expiry impact severity sits at 8 1-10 and the headline result is 7.15 score, this scenario comes in 67.13% above the baseline at 11.95 score.
  • Use it to triage age-controlled stock during inventory reviews, before lot release, or when deciding which materials warrant recertification testing. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Material shelf-life risk score: 11.95 score (headline result)
  • Expiry impact severity: 20 1-10
  • Expiration likelihood: 7 1-10
  • Detection or extension difficulty: 6 1-10

Run it with your numbers

  • Every input above is editable in the live Material Shelf-Life Risk calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.