Most organisations don’t think about component availability until it becomes a problem.
A component reaches end of life, stock disappears from the market and what should have been a straightforward procurement activity suddenly becomes a race against time. The result is higher costs, project delays and difficult decisions about redesigning equipment that was never expected to change.
Long term environmentally controlled storage (ECS) allows organisations to plan ahead, securing critical components before obsolescence becomes a costly operational issue.
What is Component Obsolescence?
Component obsolescence happens when a part or material is no longer made or supported by manufacturers. This can create serious issues for industries like aerospace, defence, electronics and medical devices, where products are expected to last far longer than the availability of their individual components.
While obsolescence cannot always be prevented, the risks associated with it can be managed. The organisations that plan ahead are generally those least affected when components become unavailable.
The Cost of Ignoring Obsolescence
When obsolescence isn’t managed proactively, the consequences can extend well beyond the cost of replacing a single component.
Production delays
If a critical part becomes unavailable, manufacturing, maintenance or repair activities can quickly be disrupted. Finding a suitable replacement may take weeks or even months, particularly where components are no longer in production or require additional qualification before use.
Costly redesign programmes
In some cases, replacing an obsolete component isn’t as simple as selecting an alternative. A redesign may be required to accommodate a new part, followed by testing, validation, documentation updates and, in regulated industries, recertification. These activities can cost significantly more than the component itself.
Higher procurement costs
As availability decreases, the cost of sourcing obsolete components often increases. Organisations may find themselves competing for limited remaining stock, purchasing through specialist brokers or funding small-batch manufacturing, all of which can place considerable pressure on procurement budgets. During the global semiconductor shortage, it was not uncommon for some electronic components to sell for many times their original price.
Why Environmental Control Matters
Environmental conditions play a significant role in preserving the long term reliability of electronic and electro-mechanical components. Excess humidity can accelerate corrosion and oxidation, while fluctuations in temperature may affect packaging materials, seals and other sensitive components. Maintaining stable storage conditions helps preserve component integrity and provides greater confidence that stored parts will perform as intended when eventually returned to service.
Benefits of Environmentally Controlled Storage
For organisations supporting equipment over many years, long term ECS is more than simply holding spare parts. It is a practical way to reduce risk, improve resilience and control costs.
Reduce supply chain risk
When manufacturers discontinue a component, sourcing replacements can become difficult or impossible. By securing critical parts before they become obsolete, organisations can maintain production, support in-service equipment and avoid unnecessary disruption.
Control long term costs
Purchasing components during a manufacturer’s Last Time Buy (LTB) window is often significantly more cost-effective than trying to source obsolete parts later through the open market. A planned approach can also reduce the need for expensive redesign programmes and emergency procurement. Research by Deloitte has shown that proactive obsolescence management can reduce maintenance costs by as much as 40%.
Support products throughout their operational life
Many defence, aerospace, rail and industrial systems remain in service for decades, while the electronic components they rely on may only be available for a few years. Long term ECS helps bridge that gap, ensuring critical parts remain available throughout the life of the equipment and reducing the risk of premature replacement.
For many organisations, environmentally controlled storage forms part of a wider obsolescence management strategy. Combined with proactive monitoring, Last Time Buy planning and effective inventory management, it provides greater resilience throughout the operational life of equipment.
The Risks of Not Planning Ahead
Failing to plan for long term storage can create avoidable risks that only become apparent when critical components are needed.
Component deterioration
Components stored in unsuitable environmental conditions can degrade over time. Moisture, temperature fluctuations and contamination can lead to corrosion, oxidation, warped packaging or reduced performance, particularly for sensitive electronic parts.
Reduced reliability
Some components, including memory devices and other sensitive electronics, can be affected by poor storage practices. Without the correct environmental controls and protective packaging, there is an increased risk that components will no longer perform as expected when called into service.
Operational disruption
When replacement parts are no longer available and no strategic stock has been retained, maintenance activities can be delayed or even brought to a standstill. The result can be extended downtime, missed delivery commitments, increased procurement costs and unnecessary pressure on engineering and supply chain teams.
Investment vs Long Term Value
|
Investment |
Long term benefit |
|
Environmentally controlled storage |
Protects component condition over many years |
|
Strategic stockholding |
Reduces the impact of component obsolescence |
|
Inventory Management |
Improves stock visibility and availability |
|
Planned Last Time Buys |
Avoids inflated prices and emergency procurement |
Best Practices for Effective Long Term Storage
Simply placing components into storage is not enough. To ensure they remain reliable for years, the storage environment and management processes need to be carefully controlled.
Control the storage environment
Environmental conditions have a significant impact on the lifespan of electronic and mechanical components. As a guide, cabinets should be maintained below 5% relative humidity for moisture sensitive items, while environmentally controlled storage areas should typically operate between 20–60% relative humidity at around 20°C.
Maintain accurate inventory records
Knowing exactly what you have, where it is and when it was received is just as important as the storage conditions themselves. Regular stock audits and effective inventory management help prevent unnecessary purchasing and ensure critical components remain available when needed.
Protect components with appropriate packaging
Sensitive components should always be stored in suitable moisture-barrier and anti-static packaging to minimise the risk of contamination, corrosion and electrostatic damage during storage.
Inspect stored stock regularly
Long term ECS should never be a ‘store it and forget it’ exercise. Routine inspections help identify any signs of deterioration early and provide confidence that components will perform as expected when they’re eventually required.
When managed correctly, environmentally controlled storage becomes far more than a way of holding spare parts. It forms an important part of an organisation’s wider obsolescence management strategy, helping to protect critical assets, maintain operational capability and reduce through-life costs. For organisations supporting equipment over decades rather than years, it is often the difference between reacting to obsolescence and being prepared for it.
Organisations supporting equipment over decades rather than years cannot afford to leave component availability to chance. A well-planned environmentally controlled storage strategy helps ensure critical parts remain available, protected and ready for use whenever they’re needed.
If your organisation is reviewing its long term component storage strategy, CMCA(UK) can help you develop a solution that supports both operational resilience and through-life asset management.