Aftermarket, Field Service & Service Parts worked example

Depot Repair Yield at 99% target depot repair yield: a worked example

What does the result look like when target depot repair yield reaches 99%? The full calculation is worked below with real intermediate numbers. a depot repair manager needs to measure successful repair output from the repair queue

The inputs for this scenario

  • Repaired units passing final test: 138 units (unchanged)
  • Depot repair attempts: 162 attempts (unchanged)
  • Target depot repair yield: 99 % (raised for this scenario; the documented default is 92)

Working through the calculation

  • Applying the documented formula (Depot repair yield = repaired units passing final test ÷ depot repair attempts × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 85.19 % repair yield for depot repair yield, the number this scenario is built around.
  • At this operating point the engine returns 13.81 percentage points for repair yield gap.
  • At this operating point the engine returns 138 units for units passing final test.
  • At this operating point the engine returns 162 attempts for depot repair attempts.

How this compares with the baseline

  • Against the tool's baseline example, where target depot repair yield sits at 92% and the headline result is 85.19 % repair yield, this scenario lands almost exactly on the baseline at 85.19 % repair yield.
  • A figure at this level is achievable when target depot repair yield is genuinely sustained, not just peaked for a shift. It treats every attempt equally and does not separate easy fixes from no-fault-found or unrepairable units, so a hard-to-diagnose product can drag yield down even with a skilled team.

Results at a glance

  • Depot repair yield: 85.19 % repair yield (headline result)
  • Repair yield gap: 13.81 percentage points
  • Units passing final test: 138 units
  • Depot repair attempts: 162 attempts

Run it with your numbers

  • Every input above is editable in the live Depot Repair Yield calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.