Alstom Manages Component Obsolescence to Maintain Train Operations

Rail manufacturer Alstom has adopted a proactive approach to managing component obsolescence, aiming to keep its trains operational for their entire 30-40 year lifespan.

Many components used in trains, particularly electronics, become obsolete much faster, sometimes within five years. Stuart Broadbent, Alstom's Director of Obsolescence Management, explained that individual components cannot be continually replaced as it would require revalidation of the train's entire systems, a process that is highly costly.

"Our customers expect our trains to remain operational for 35 years, even if, halfway through its service life, a train may contain parts that haven't been manufactured for 10 or 20 years," Broadbent stated. He highlighted that this challenge affects many of a train's key systems, including door controls, traction control, train management systems, and braking.

Alstom's strategy involves continuously monitoring the availability of up to 60,000 electronic components. When a manufacturer signals that a component is nearing obsolescence, the company evaluates options. These include finding a suitable replacement part, modifying the design, or making long-term purchases. Alstom often opts for long-term procurement due to its cost-effectiveness compared to redesigning and revalidating equipment.