A slow and fragmented spare-parts process was creating operational disruption, unnecessary costs and lost revenue. By mapping the process end to end, Checker Consulting identified 66 sources of waste and established a prioritized roadmap for a faster, leaner and more efficient operating model.
The Challenge
Even the simplest spare part can bring operations to a halt. When critical parts are unavailable, the time required to return, repair or replace them can lead to extended disruption and significant lost revenue.
In this case, the existing process required spare parts to move through several internal stakeholders before being sent to a maintenance partner and returned to the business. Each handover, decision and administrative step increased lead time and introduced additional opportunities for delay.
The process had evolved over time without a complete end-to-end review. Individual teams understood their own responsibilities, but there was no shared view of the full process, the dependencies between stakeholders or the cumulative impact of inefficient ways of working.
For senior management, the issue extended beyond operational inconvenience. Process waste was affecting business continuity, time to market, cost levels and revenue. Improving individual activities would not be sufficient. The organization needed a fact-based understanding of the full process and a structured approach to eliminating the causes of delay.
Checker’s Role
Checker Consulting was engaged to facilitate a Lean process optimization initiative covering the complete spare-parts flow.
Our role was to bring together key stakeholders from across the organization, establish a representative view of the current process and identify the activities, interactions and decision points that created unnecessary work or extended lead times.
We supported the client in moving from individual observations to a shared, fact-based improvement agenda. This included mapping the operating model, identifying root causes, prioritizing improvement opportunities and structuring the actions into manageable implementation waves.
Our Approach
The work moved through three stages:
1. Mapping the current process
Using Lean methodology, we conducted a series of workshops with key stakeholders from across the organization. Each participant contributed their perspective on how the spare part moved from the initial requirement through internal handling, delivery to the maintenance partner and eventual return to the operation.
We mapped every step and interaction in the existing process, including which stakeholders were involved, what actions they performed and what information or decisions were required before the process could continue.
This created a complete end-to-end view of how the process worked in practice rather than how it was assumed to work.
2. Identifying waste and root causes
Each activity and interaction was assessed to determine whether it contributed value or represented avoidable waste within the process.
The workshops identified 66 separate waste items. These included unnecessary activities, inefficient handovers and process steps that increased lead time without improving the outcome.
Using a fishbone diagram, we categorized the identified waste into relevant root-cause areas. This allowed the client to move beyond addressing individual symptoms and understand the structural causes of the process inefficiencies.
3. Prioritizing the transformation
The identified improvement opportunities were prioritized according to their expected business impact and ease of implementation.
Based on this assessment, we agreed on a series of implementation waves. The first waves focused on improvements that could be introduced relatively quickly while generating a meaningful impact on cost, efficiency and process lead time.
More complex changes could then be addressed in later waves, allowing the organization to improve the process progressively without creating unnecessary disruption to ongoing operations.
Where changes depended on the maintenance partner, the roadmap also provided a shared basis for collaboration, governance and joint process improvement.
The Results
The initiative gave the organization a complete and shared view of a process that had previously been fragmented across multiple stakeholders.
By identifying 66 sources of waste, analyzing their root causes and prioritizing the required changes, the client gained a practical roadmap for developing a leaner and more efficient operating model.
The redesigned approach reduced unnecessary process steps, improved cooperation between internal teams and the maintenance partner, and created the conditions for shorter lead times and improved time to market.
The resulting improvements had a direct effect on business performance:
- Reduced process waste and operational cost.
- Increased process efficiency.
- Shorter lead times for critical spare parts.
- Reduced risk of prolonged operational disruption.
- Improved collaboration with the maintenance partner.
- Reduced costs and increased revenue through improved availability.
The WE Factor — combining the reduction of Waste with increased Efficiency — helped the client strengthen its operations and improve its bottom-line performance.
The result was not simply a redesigned process. It was a more transparent, controlled and resilient way of working that enabled the organization to identify inefficiencies, prioritize improvements and sustain stronger operational performance over time.

