We provide ongoing support to keep systems in service over the long term.
Our teams handle repair, rework, refurbishment and RMA activity, supported by detailed diagnostics and controlled re-test. We manage obsolescence risks, identify alternative parts, and redesign affected assemblies when required to extend the life of the system.
For programmes with sustained demand, we support spares, repairs and incremental improvements across the deployed fleet. This ensures mission critical systems remain available, reliable and compliant with updated requirements.
STI offers 4th Line Support as an option provided to our Prime defence customers, and includes repair, refurbishment, and enhancements of depot spares to ensure future equipment availability.