The Department of the Army intends to award a sole-source, firm-fixed-price contract to GE Aviation Systems LLC for Time-Sensitive Network (TSN) training services. The work will be performed at the contractor's facility in Grand Rapids, Michigan. This non-competitive action is justified because GE Aerospace, as the original equipment manufacturer and developer of the proprietary Chronos & Helios software and hardware, is deemed the only reasonably available source capable of providing the required in-depth training.