Scenario: a small general-aviation airport has one plow and one broom and a runway that must reopen. If the plow loses an edge, there is no second plow. Direct answer: plan for single-point failure: hold a complete spare edge set and hardware, practise a swap, keep records and agree in advance who can help if the plow goes down. This is a planning guide, with no source for numbers; funding and equipment requirements differ by airport and program.
What to hold
| Item | Suggested approach |
|---|---|
| Spare cutting edge set for the plow | One complete set, ready to fit, labelled and stored dry |
| Hardware | Two sets of bolts, nuts and washers, matched to the plow maker’s specification |
| Shoes | A spare pair if the plow uses them |
| Broom parts | Spare brushes or sections per the maker, if the broom is critical |
| Tools | Wrenches, torque wrench, lifting aid and work lights in one box |
| Hydraulic spares | Hose and fittings for the plow |
Plan for the failure
The plan is written before the season, when nobody is under pressure.
- Write down what you will do if the plow cannot work: swap the edge on site, call a neighbour or contractor, or clear the minimum area with the broom.
- Practise the edge swap before the season and time it.
- Agree a mutual aid contact with a nearby airport, road authority or contractor, and keep their numbers.
- Know the lead time for a new edge and set a reorder point that keeps one set on the shelf at all times.
Records to keep
A spare-edge strategy only works if the records show what the spares are for.
- Hours on each edge and wear readings. Without hours, a reading is a number with no denominator.
- Edge changes, with dates and reasons. The reason is the part you will actually read next year.
- Strikes and damage, with locations. Location is what turns an incident into a site fix.
- Supplier contacts and order lead times. A spare strategy that ignores lead time is a wish, not a plan.
Check the rules that apply to you
- Check your airport’s snow plan and any program requirements for equipment, such as edge materials near in-pavement lights.
- If the airport buys with grant money, check the purchasing rules before you order.
Limits
This guide gives no numbers on how many spares are enough. Set your own from usage and lead time, and review it each season.
Boundary: No number of spares is recommended and no rule is cited; check your airport’s snow plan, program requirements and purchasing rules.
Further reading on this site.
Airport Snow Removal Equipment Components: What Wears Out in a Season ↗Airport Snow Plow Blades: Specification Requirements for Runways and Aprons ↗Carbide snow plow blades ↗AIP-Funded Equipment and Buy American: What Airport Buyers Must Check ↗How Often Do Airport Edges Get Changed? Building a Local Baseline ↗Equipment Capacity Is Growing: How Airports Should Read an OEM Capacity Announcement ↗
