Aerospace & Defense Manufacturing worked example

Aerospace Rework Hour Capacity at 59% certified technician uptime: a worked example

Suppose certified technician uptime falls to 59%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate recoverable aerospace rework capacity from hours per rework cycle, cycles available, technician uptime, and rework yield.

The inputs for this scenario

  • Rework hours per recovery cycle: 32 hr/cycle (held at the documented default)
  • Available recovery cycles: 12 cycles (held at the documented default)
  • Certified technician uptime: 59 % (the input this scenario stresses; the baseline uses 82)
  • Accepted rework yield: 78 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross rework hour capacity = rework hours per cycle × available recovery cycles.
  • Accepted aerospace rework capacity works out to 177 accepted rework hr at these inputs, and this is the headline figure for the scenario.
  • Gross rework hour capacity works out to 384 accepted rework hr at these inputs.
  • Technician downtime loss works out to 157 accepted rework hr at these inputs.
  • Rejected rework hour loss works out to 49.84 accepted rework hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where certified technician uptime sits at 82% and the headline result is 246 accepted rework hr, this scenario comes in 28.05% below the baseline at 177 accepted rework hr.
  • It computes accepted rework capacity by derating gross rework hours for certified-technician uptime and the yield of rework that actually passes re-inspection. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Accepted aerospace rework capacity: 177 accepted rework hr (headline result)
  • Gross rework hour capacity: 384 accepted rework hr
  • Technician downtime loss: 157 accepted rework hr
  • Rejected rework hour loss: 49.84 accepted rework hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Aerospace Rework Hour Capacity calculator, set certified technician uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.