What is Spare parts staging?
Staging puts spares where they will be needed. The spares may sit in a locker at the customer site, in a depot near a group of sites, or with a field services provider that holds stock on the customer's behalf. When a part fails, the engineer collects the spare, swaps it, and the failed part is returned or disposed of.
It differs from shipping a part after a fault is raised, which adds delivery time, and from vendor advance replacement, where the manufacturer sends a part under a support contract. Staging is a way to reduce repair time on parts that fail often, or on sites that are far from a depot. It carries a cost, because stocked parts tie up capital and need counting, tracking and sometimes rotation.
Definitions of who owns the stock vary. Some customers own and supply the spares, and the field services provider only stores and installs them. Other providers hold their own stock, and the customer pays for use. Agree ownership, insurance, and counting rules in writing.
How it shows up in practice
- Choose which parts to stage based on failure history, how long a shipped part would take and how serious an outage would be.
- Record the serial numbers of staged parts and the locations, and update the record at each swap.
- Define the return process for failed parts, including labels, packaging and who ships them back to the vendor.
- Review stock levels at fixed intervals and replace used spares, so the next fault finds the shelf full.