MRO Inventory and Purchasing: Maintenance Strategy Series, Volume 2

Many organizations have spare parts that are so large and complex that they can be rebuilt. In some cases, these may be components such as pumps, motors, gear cases, or other major spares. Because these components are to be repaired or rebuilt, they follow a specialized process. A basic rebuild process is highlighted in Figure 5-1.
This flowchart starts at a point after the component has failed and been replaced. The first question planners should ask is, "Is the part repairable?" If the answer is no, and the planners still need to have the part rebuilt, then they need to change the status of the part to show it is a rebuildable component.
Once the part is identified in the electronic system as a rebuildable spare, all approvals or purchase orders necessary to have the item rebuilt should be obtained. If the component is to be repaired internally, it is likely that the appropriate approval will be all that is needed. If the component is to be repaired externally, by a contractor, then it is likely that a purchase order will be required for the repair.
If the component is to be repaired internally, the planners should first check to ensure that all spare parts are available. If the spare parts to rebuild the component are not available, the planners should order the spare parts.
Once the spare parts are available, the planners should issue a work order to rebuild the component.