The requirement is for repair, overhaul, upgrade, testing, and inspection of PREAMP,MAS (P/N 5798-8000-001; NSN 7RH 1680 015855400 P8) to Ready-for-Issue condition, with the quantity reduced by 13 units from 21 to 8. Key timelines include a required repair turnaround time of 150 days after asset receipt, induction expiration 365 days after contract award, a 365-day warranty after unit delivery with defects reported within 45 days, and CAV transaction reporting by the fifth regular business day after receipt. Performance is identified at Undersea Sensor Systems, 4868 E PK 30 DR, Columbia City, IN 46725-8861, and the contractor must specify the actual repair source/location. The contractor must supply facilities, labor, materials, parts, tooling, quality systems meeting ISO 9001/SAE AS9100, calibration controls, configuration management, MIL-STD-130 markings, and MIL-STD-2073 packaging as applicable. Special provisions cover throughput constraints, BER/MOI/OAR determinations with DCMA/PCO involvement, and a reconciliation modification after final acceptance with price tied to meeting RTAT requirements.