Electronics Repair, Refurbishment & Depot Operations worked example

First-Pass Repair Yield at 99% target first-pass repair yield: a worked example

What does the result look like when target first-pass repair yield reaches 99%? The full calculation is worked below with real intermediate numbers. Use it when first-pass repair yield in electronics repair, refurbishment and depot operations needs a clean rate and gap-to-target you can put on a tier board.

The inputs for this scenario

  • Repairs passing final test first time: 8 units (unchanged)
  • Total repaired units tested: 250 units (unchanged)
  • Target first-pass repair yield: 99 % (raised for this scenario; the documented default is 95)

Working through the calculation

  • Applying the documented formula (First-pass repair yield = repairs passing final test first time ÷ total repaired units tested × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 3.2 % for first-pass repair yield, the number this scenario is built around.
  • At this operating point the engine returns 95.8 points for yield gap to target.
  • At this operating point the engine returns 8 count for repairs passing final test first time.
  • At this operating point the engine returns 250 count for total repaired units tested.

How this compares with the baseline

  • Against the tool's baseline example, where target first-pass repair yield sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
  • A figure at this level is achievable when target first-pass repair yield is genuinely sustained, not just peaked for a shift. FPY only counts the final-test gate; it says nothing about why units fail, and a high yield on an easy product mix can mask poor performance on hard fault types.

Results at a glance

  • First-pass repair yield: 3.2 % (headline result)
  • Yield gap to target: 95.8 points
  • Repairs passing final test first time: 8 count
  • Total repaired units tested: 250 count

Run it with your numbers

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

Last reviewed 2026-05-12.