Electronics Repair, Refurbishment & Depot Operations worked example

RMA Queue Lead Time at 12% queue hold and admin allowance: a worked example

What does the result look like when queue hold and admin allowance reaches 12%? The full calculation is worked below with real intermediate numbers. Use it when rma queue lead time in electronics repair, refurbishment and depot operations needs a defensible run time before a quote goes out.

The inputs for this scenario

  • RMA backlog units awaiting repair: 120 RMA units (unchanged)
  • Depot bench throughput rate: 12 RMA units / hr (unchanged)
  • Queue hold and admin allowance: 12 % (raised for this scenario; the documented default is 10)

Working through the calculation

  • Applying the documented formula (Base RMA queue hours = RMA backlog units รท depot processing pace) to the inputs above produces each figure below.
  • At this operating point the engine returns 11.2 hr for estimated rma queue lead time, the number this scenario is built around.
  • At this operating point the engine returns 10 hr for base rma queue hours.
  • At this operating point the engine returns 12 % for queue hold and admin allowance.
  • At this operating point the engine returns 12 pieces / min for depot processing pace.

How this compares with the baseline

  • Against the tool's baseline example, where queue hold and admin allowance sits at 10% and the headline result is 11 hr, this scenario comes in 1.82% above the baseline at 11.2 hr.
  • A figure at this level is achievable when queue hold and admin allowance is genuinely sustained, not just peaked for a shift. It assumes a single steady throughput rate and FIFO-style flow; mixed-priority queues, parts-wait stalls, and uneven technician skill can make real lead time longer than the estimate.

Results at a glance

  • Estimated RMA queue lead time: 11.2 hr (headline result)
  • Base RMA queue hours: 10 hr
  • Queue hold and admin allowance: 12 %
  • Depot processing pace: 12 pieces / min

Run it with your numbers

  • Every input above is editable in the live RMA Queue Lead Time calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.