The problem
A complex bill of materials leaves no room for bad data
Serialized parts, airworthiness records and MRO data have to trace cleanly through a complex bill of materials — a gap is a compliance problem under FAA and EASA rules, not an inconvenience.
That data is often export-controlled, which makes an unmasked test system a real exposure. Legacy modernization and supplier consolidation add another layer of data to transform without losing traceability.