Aerospace & Defense Manufacturing worked example

Source Inspection Cost at 72% chargeable source inspection share: a worked example in aerospace & defense manufacturing

Here is what the math looks like when conditions slip. We hold every other input steady and drop chargeable source inspection share to 72%, then walk the calculation through step by step. Estimate customer or government source inspection cost from inspected lots, cost per lot, accepted scope share, and fixed visit cost.

The inputs for this scenario

  • Source-inspected aerospace lots: 6 lots (held at the documented default)
  • Source inspection cost per lot: 780 $ / lot (held at the documented default)
  • Chargeable source inspection share: 72 % (the input this scenario stresses; the baseline uses 100)
  • Fixed visit and staging cost: 1,250 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Chargeable source inspection cost = inspected lots × cost per lot × chargeable inspection share.
  • Source inspection cost works out to 4,620 $ source inspection at these inputs, and this is the headline figure for the scenario.
  • Source inspection cost per lot works out to 770 $ / lot at these inputs.
  • Chargeable source inspection cost works out to 3,370 $ source inspection at these inputs.
  • Fixed visit and staging cost works out to 1,250 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where chargeable source inspection share sits at 100% and the headline result is 5,930 $ source inspection, this scenario comes in 22.1% below the baseline at 4,620 $ source inspection.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to chargeable source inspection share, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It treats per-lot cost as uniform; in reality complex lots requiring teardown or first-article-level scrutiny cost far more per lot than routine acceptance.

Results at a glance

  • Source inspection cost: 4,620 $ source inspection (headline result)
  • Source inspection cost per lot: 770 $ / lot
  • Chargeable source inspection cost: 3,370 $ source inspection
  • Fixed visit and staging cost: 1,250 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Source Inspection Cost calculator, set chargeable source inspection share to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.