Airport Ground Support Equipment worked example

GSE Preventive Maintenance Interval Workload at 29% parts, access, and findings allowance: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop parts, access, and findings allowance to 29%, then walk the calculation through step by step. Estimate preventive-maintenance labor hours for airport GSE from units due, PM completion pace, and allowance for access, parts, and findings.

The inputs for this scenario

  • GSE units due for preventive maintenance: 58 units (held at the documented default)
  • PM completion pace: 0.11 units/min (held at the documented default)
  • Parts, access, and findings allowance: 29 % (the input this scenario stresses; the baseline uses 40)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base PM workload = GSE units due for preventive maintenance รท PM completion pace, converted to hours.
  • Total GSE PM workload works out to 680 PM labor hr at these inputs, and this is the headline figure for the scenario.
  • Base PM workload works out to 527 PM labor hr at these inputs.
  • Parts, access, and findings allowance works out to 29 % at these inputs.
  • PM completion pace works out to 0.11 units/min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where parts, access, and findings allowance sits at 40% and the headline result is 738 PM labor hr, this scenario comes in 7.86% below the baseline at 680 PM labor hr.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to parts, access, and findings allowance, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. A single completion pace blends quick small-GSE inspections with heavy diesel tug services, so split by equipment class when the fleet is mixed.

Results at a glance

  • Total GSE PM workload: 680 PM labor hr (headline result)
  • Base PM workload: 527 PM labor hr
  • Parts, access, and findings allowance: 29 %
  • PM completion pace: 0.11 units/min

Run it with your numbers

  • To rerun this with your own numbers, open the live GSE Preventive Maintenance Interval Workload calculator, set parts, access, and findings allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.