The Department of Defense, through the Department of the Air Force, is seeking a contractor for the overhaul of C-5 Trailing Edge Flap Gearbox Assemblies, as outlined in the presolicitation notice FA8538-25-R-0002. This procurement involves a Fixed Price Requirements type contract for 38 National Stock Numbers (NSNs), with a two-year performance period consisting of a 12-month basic ordering period and a 12-month option period. The services are critical for maintaining the operational readiness of the C-5 aircraft, and the government intends to negotiate with a limited number of sources, specifically the original equipment manufacturer, Thomas Instruments. Interested parties should direct inquiries to Contract Negotiator Lauren Mitchell at lauren.mitchell.6@us.af.mil, with the estimated solicitation issuance date set for December 12, 2024, and a response deadline of January 13, 2025.